NRMT 2270, Photogrammetry/Remote Sensing. Lecture 4

Size: px
Start display at page:

Download "NRMT 2270, Photogrammetry/Remote Sensing. Lecture 4"

Transcription

1 NRMT 2270, Photogrammetry/Remote Sensing Lecture 4 Cameras. Lenses. Photo Scale. Principles of Aerial Photography. Principle and Conjugate Principal Points. Vertical and Oblique Aerial photos. Stereo Viewing. Vertical Exaggeration. Tomislav Sapic GIS Technologist Faculty of Natural Resources Management Lakehead University

2 Cameras Aerial cameras are usually used to take vertical or near-vertical photographs of the ground. Many calculations in photogrammetry are based on the assumption that the photograph is a vertically taken (nearvertical) photograph. Source: Wolf (1974).

3 Cameras Focal (Film) Plane: The plane of the film or sensor Camera and Eye Optics Focal Length: The distance from the rear nodal point of the lens to the film plane. Professional aerial photo cameras usually have longer focal length lenses, e.g. 88 mm, 105 mm, 152 mm, 305 mm, etc. Lens: Optical glass that gathers light rays from object points and brings them to focus at some distance on the opposite side of the lens. Aperture: The hole or the opening through which light is let through the lens and onto the film. Source: Jensen (2007). Shutter: The device that lets the light to pass for a specific period of time.

4 Lenses Thin lens the thickness is considered negligible. The focal length is the distance between the middle of the lens and the image plane. Source: Wolf (1974). The image plane (also called focal plane) is the plane in which all incident light rays are brought to focus (Wolf and Dewitt 2000)

5 Lenses Thick lens one thick lens or a combination of several thin lenses. Incident node Source: Wolf (1974). Emergent node (rear nodal point) The focal length is the distance between the rear nodal point and the image plane. An aerial photo camera thick lens Super Aviogon. Source: Wolf (1974).

6 Lenses The lens assembly is the most important part of the camera. The aerial camera lens on an aircraft is focused at infinity because aircrafts usually fly at thousands of meters above the terrain. Lenses can have different angles of view, depending on the mission requirements. Camera Lens Angle of View Narrow lens: < 60⁰ Normal lens: 60⁰ - 75⁰ Wide-angle lens: 75⁰ - 100⁰ Super-wide angle lens: > 100 ⁰ Source: Jensen (2007).

7 Adjusting the Film/Sensor Exposure: ƒ/stop ƒ/stop = lens focal length diameter of lens opening = f d ƒ/2 = 28 mm 14 mm Source: Jensen (2007). Lenses themselves are referred to by their maximum aperture ƒ/5 lens is faster than ƒ/10 lens (the shutter can be faster). Moving aircrafts have to take photos rapidly to avoid smeared objects on the photos. The ƒ/stop scale increases by (the root of 2), resulting in doubling/halving of the amount of light let in compared to the neighbouring setting.

8 Adjusting the Film/Sensor Exposure: Shutter Speed The length of time the shutter is open is called exposure time. Faster time, less light is let onto the film/sensor. Proper exposure at various light levels (e.g. sunny vs. cloudy) is regulated by changing the shutter speed or ƒ/stop. Source: Jensen (2007).

9 Source: Jensen (2007). Aerial Analog Metric Camera

10 Film Annotation Aerial photos are taken in great numbers and in different conditions, requiring a system of their identification. Aerial photos are also used for different measurements of the earth objects -- the geometry at the moment of taking the photo needs to be recorded and used during the measurements (e.g. fiducial marks recorded on films).

11 Aerial Digital Cameras Two main imaging sensors: Charge-coupled device (CCD) Complimentary Metal Oxide Semiconductor (CMOS) Two main arrays of detectors: Linear create seamless digital image strips. Area create separate, frame, digital images. Source: Jensen (2007).

12 Aerial Digital Cameras Voltages (reflectance/radiance) captured by CCD or CMOS sensor detectors is converted to digital brightness values within the designed data depth (8 bit, or 11 bit, or 16 bit, etc.) and stored in image files (rasters). Depending on the number of detectors (pixels), aerial digital cameras are divided into small-format, medium-format, and large-format cameras.

13 Aerial Digital Cameras Small-Format Typically <= 15 megapixels (MP). Can be used on piloted aircraft or unmanned aerial vehicles (UAVs). Kodak DCS Pro SLR 4560 x 3048 pixels ( ~ 14 MP) 36 x 24 mm CMOS sensor Used to capture in 2007 the LU campus photos used in the lab. Kodak has discontinued the model. Panasonic Lumix DMC GF x 3000 pixels (12 MP) Live MOS sensor (CCD image quality + lower power consumption of a CMOS) Used in the study by Zarco-Tejada et al. (2014).

14 Aerial Digital Cameras Medium-Format Typically megapixels (MP) Canon 550 D 18 MP 22.3 x 14.9 mm CMOS sensor Used in the study by Turner et al. (2014).

15 Aerial Digital Cameras Large-Format True, large-scale, aerial photography cameras. Some cameras, such Leica s ADS-80, are based on multiple linear arrays, each consisting of 12,000 detectors. Others, such as Z/1 Imaging Digital Modular Camera (DMC) and the Vexcel large-format digital camera, are based on the use of multiple area arrays. o Z/1 uses four 7000 x 4000 arrays to obtain panchromatic (grayscale) data and four 3000 x 2000 arrays to obtain multispectral (colour) data. o Microsoft UltraCam Xp CCD sensor has in PAN x pixels and in colour 5770 x 3770 pixels. DMI s Digital Mapping Camera (DMC) Microsoft UltraCam Xp Source: DMI -integration/p68-gispro

16 Created by Leica Geosystems. Leica ADS80 Used in the current province-wide aerial imaging for the primary purpose of creating forest resource inventory. Preceded by ADS40, the newest ADS100. Linear array camera (scanner). CCD lines having pixels each. Detector (pixel) size: 6.5 μm Data channel: 16 bit Field of View (swath angle): 64⁰ Part of a computer system of navigation, data storage and their control. Source: Leica Geosystems (2014). Source: Leica Geosystems (2014).

17 Leica ADS80 Spectral bands (nm): o Panchromatic o Red o Green o Blue o Near-infrared Source: Leica Geosystems (2008).

18 Photo Scale Photo (Map) Scale - the ratio of a distance on a photo or a map to the corresponding distance on the ground. Three ways of expressing scale: 1. Fraction: Representative fraction: 1:20,000 Scale fractions should always be expressed as a ratio of 1 over another number. 3. Unit: 1 cm = 200 m Photo scales are applicable to hard copy photos spatial properties and in some circumstances to camera sensors but they are not applicable to digital aerial images spatial properties. Digital aerial images are scale independent -- they can be digitally displayed at any chosen scale. Spatial resolution is what is used to relate spatial properties of digital aerial images to the ground.

19 Photo Scale s Photo _ Distance Ground _ Distance ab AB Source: Jensen (2007). Example: s 8.75cm m 1750m 1750m

20 Photo Scale s Photo_ Distance xmap_ Scale Map_ Distance Map Scale = 1:50,000 Example: 10.2 s x

21 Photo Scale (Vertical Frame Photography) The scale of a vertical photo is directly proportional to the camera focal length and inversely proportional to flying height above ground. S f (focal_length) H(flying_ height) The focal length based calculation should be directly applied to only the photo printouts (positives) that are at a 1:1 scale versus their negative. Otherwise a scaling of the printout measures to the sensor (film frame) measures is required. Example: S 0.5' 10000' Source: Wolf (1974).

22 Focal Length Based Photo Scale on Variable Terrain (Vertical Frame Photography) Savg H f -havg Example: ƒ = 105 mm = m H = 4500 m asl h = 400 m h1 = 450 m h2 = 50 m h avg = 300 Source: Wolf (1974). Savg

23 Photo Scale (Vertical Frame Photography) When it comes to digital photos, since the printouts are larger than the sensors that captured the photo, the focal length based calculation needs to be adjusted for this difference Camera sensor (CCD): 24 x 35 mm; Camera focal length: 105 mm. Flying height: 3120 m (GPS measured - a.s.l. ) Average terrain height: 440 m Photo printout: 193 x 290 mm. S(sensor) f H-h avg Photo (short side) / sensor (short side) = 193/24 = 8 Photo (long side) / sensor (long side) = 290/35 = Photo scale =

24 Principles of Aerial Photography Types of aerial images depending on the angle from which they were taken: Vertical taken vertically straight down, perpendicular to the surface of the Earth. o A truly vertical photo, is rarely achieved ; often, photos intended to be vertical are taken at less then 1⁰ and rarely exceeding 3⁰ from vertical. These photos are called near-vertical or tilted photos and can, for many practical purposes, still be analyzed using truly vertical photo principles. Source: Jensen (2007). Oblique photos taken at > 3⁰ from vertical Low oblique (horizon not visible) High oblique (horizon visible)

25 Principles of Aerial Photography Types of aerial images depending on their format: 1. Singular, frame images (analog or digital). Analog (a photoprint made from a chemical film) Digital Fiducial Marks

26 Types of aerial images depending on their format: 2. Seamless image strip (digital). GIS layer Image strip

27 Digital Aerial Images Linear sensors usually create much larger images than area sensors, especially commercial, small/medium/large format camera sensors, at equal spatial resolutions, e.g., 40 cm. Professional Aerial, Large-scale Aerial Linear Professional Aerial, Large-scale Aerial Area (Frame) Commercial, Small Format (Frame) ~1.2 km ~25 km ~3.6 km ~4.5 km ~7 km ~1.8 km

28 Principles of Aerial Photography Frame Images Source: Jensen (2007).

29 Principal Points (PPs), Conjugate Principal Points (CPPs) and Lines of Flight (Flight Lines) (Frame Images) Fiducial marks are part of the image coordinate system, formed by horizontally and vertically connecting the opposing fiducial marks and creating the x and y image axis, respectively The intersection of the two axes is called principal point. The principal point at the intersection of the x and y axes is through the manufacturing and calibration of the camera made very close to the true principal, which is the point in the image plane where a line from the rear nodal point of the lens, perpendicular to the image plane, intersects the image plane. (Wolf and Dewitt 2000). Source: Jensen (2007). Contrary to the shown, the flight line rarely coincides with the image x axis.

30 Principal Points (PPs), Conjugate Principal Points (CPPs) and Flight Lines (Frame Images) A Conjugate Principal Point (CPP) on a photo is the location of the Principal Point on an adjacent, end-overlapping, photo. The CPP location needs to be identified stereoscopically to account for radial displacement. In other words, the CPP shows over which point the camera (the plane) was positioned when the adjacent photo was taken. That means that the line connecting the PP and a CPP on a photo represents the flight line over the area (terrain) shown in the photo. PP76 Flight Line CPP77 CPP76 Flight Line PP77

31 Stereoscopic Vision When focusing with two eyes on an object, a parallactic angle is formed. The closer the object is to the eyes the wider the parallactic angle is. The brain has learned to associate distances D A and D B with parallactic angles Ø a and Ø b, respectively, and gives the viewer the visual and mental impression that A is closer than B. Looking out farther away makes differences in parallactic angles more and more subtle, to the point of them being undistinguishable to an average human adult at around 1000 m. The eye base would need to stretch out to a meter or hundreds of meters, creating hyperstereoscopy. Source: Jensen (2007). Obviously, biologically this is impossible, but can be substituted by using a model, i.e. stereo (aerial) photos.

32 A pair of two stereo photos is called a stereopair. Source: Wolf (1974). A stereopair implies that the two photos can be viewed in stereo, meaning that they, partially or completely, show the same area there is an overlap in the area shown. When viewing stereo photos in stereo, parallactic angles are formed between the eyes and the points on the viewed images of objects. Parallactic angle is formed parallel to the flight line stereo photos have to be positioned so that their flight lines are in a straight line and the photos need to be separated by a distance that forms the parallactic angle of the viewer.. The brain observes the multitude of points on the two stereo photos and forms a three dimensional stereomodel.

33 Pseudostereo When the two photos are reversed and the left eye is viewing the right photo and the right eye the left photo, pseudostereo is created the field of view 3D depth is reversed: e.g., hills look like valleys and valleys like hills.

34 Once a stereopair is created what is left to do is to place the stereo photos/images in a proper position and restrict the left eye to seeing the left photo/image only and the right eye to seeing the right photo/image only. This visual separation is achieved through different means, including using stereoscopes, anaglyph glasses, polaroid glasses, and shutter glasses. Lens/pocket sterescope Source: Jensen (2007).

35 Anaglyph Glasses Anaglyph glasses cyan red The left image (from the viewer s perspective) is displayed in red and the right in cyan. The left eye, red, filter on the glasses, absorbs cyan and lets through red and the right eye, cyan, filter, absorbs red and lets through only cyan.

36 Polarized Glasses From How Stuff Works howstuffworks. com/3-dglasses2.htm

37 Computer Generated Stereo Display With Shutter Glasses Shutter glasses Emitter The computer, through the graphics card, shows the left and the right image on the screen and alternately turns them on and off ~60 times/sec (Hz) each. Picture from rests/2columnsubpage/ html The emitter is connected to the computer graphics card and syncs through infrared the shutter glasses with the image displays - the left lens on the glasses opens up when the left image is displayed and closes when the right image is displayed; the opposite applies to the right lens.

38 Creation of Stereo Images with ADS80 ADS80 is a camera with a linear scanner, which means that it creates a seamless image strip. Images are taken from three different angles, backward, nadir, and forward. Source: Leica Geosystems (2008).

39 Stereo Viewing of a Seamless Image Strip by ADS40

40 Seamless Image Strip Triplet (Forward, Nadir, and Backward View) Backward Nadir Direction of flight Forward From:

41 Vertical Exaggeration in Stereoviewing V base _ to _ height _ ratio _ of _ actual _ object perceived _ base _ to _ height _ ratio _ of _ stereoscopic _ object V vertical exaggeration B/H base-height ratio b e /h stereoviewing ratio (inversed in equation on the left) Stereoviewing (perceived base-to-height) ratio is approximately 0.15 average adult eye base is about 60 mm and the height of viewing in stereo, although difficult to measure, has been estimated to ~ 400 mm. Example: ƒ = 305 mm (12 inch) on a film camera; photo is a 9 inch square, taken at 3,000 feet, with 60 % overlap (40% move laterally). Stereoviewing ratio is assumed to be 0.15 (use 1/0.15 in the equation!). - Result: Photo scale = 1:3000; photo total ground coverage = 2,250 ft; base, B, = 2,250 * 0.4 = 900 feet; V = 900/3000 * 1/0.15 = 2.0 (approx.).

42 References: Jensen., J. R Remote Sensing of the Environment: An Earth Resource Perspective. Pearson Prentice Hall. Leica Geosystems Leica - 3rd Generation Airborne Digital Sensors: Features/Benefits for Remote Sensing & Environmental Application. 2F%2Fmars.jrc.ec.europa.eu%2Fmars%2Fcontent%2Fdownload%2F1176%2F6943%2Ffile%2FT1_Rohrbac h_rohrbach-airbornesensors-3rd_leica.pdf&ei=35nkuvrqma- E2gWWqoCwBw&usg=AFQjCNFxEdk3vWVOSM_CAXFELGDLjceZNg&bvm=bv ,d.b2I&cad=rja. Leica Geosystems January 20, Turner, D., A. Lucieer and L. Wallace Direct georeferencing of ultrahigh-resolution UAV imagery. IEEE Transactions on Geoscience and Remote Sensing. 52(5). Vexcel UltraCam-XP Technical Specifications. White, R How Computers Work. QUE, Indianapolis, IN, USA. Wolf, P. R Elements of Photogrammetry. McGraw-Hill, Inc. Wolf, P. R. and Dewitt B. A Elements of Photogrammetry with Applications in GIS. The McGraw-Hill companies, Inc. 3 rd Edition. Zarco-Tejada, P.J., R. Diaz-Varela, V. Angileri and P. Loudjani Tree height quantification using very high resolution imagery acquired from an unmanned aerial vehicle (UAV) and automatic 3D photorconstruction methods. European Journal of Agronomy. 55:89-99.

Following are the geometrical elements of the aerial photographs:

Following are the geometrical elements of the aerial photographs: Geometrical elements/characteristics of aerial photograph: An aerial photograph is a central or perspective projection, where the bundles of perspective rays meet at a point of origin called perspective

More information

Lecture 2. Electromagnetic radiation principles. Units, image resolutions.

Lecture 2. Electromagnetic radiation principles. Units, image resolutions. NRMT 2270, Photogrammetry/Remote Sensing Lecture 2 Electromagnetic radiation principles. Units, image resolutions. Tomislav Sapic GIS Technologist Faculty of Natural Resources Management Lakehead University

More information

Basics of Photogrammetry Note#6

Basics of Photogrammetry Note#6 Basics of Photogrammetry Note#6 Photogrammetry Art and science of making accurate measurements by means of aerial photography Analog: visual and manual analysis of aerial photographs in hard-copy format

More information

Geometry of Aerial Photographs

Geometry of Aerial Photographs Geometry of Aerial Photographs Aerial Cameras Aerial cameras must be (details in lectures): Geometrically stable Have fast and efficient shutters Have high geometric and optical quality lenses They can

More information

Chapters 1-3. Chapter 1: Introduction and applications of photogrammetry Chapter 2: Electro-magnetic radiation. Chapter 3: Basic optics

Chapters 1-3. Chapter 1: Introduction and applications of photogrammetry Chapter 2: Electro-magnetic radiation. Chapter 3: Basic optics Chapters 1-3 Chapter 1: Introduction and applications of photogrammetry Chapter 2: Electro-magnetic radiation Radiation sources Classification of remote sensing systems (passive & active) Electromagnetic

More information

Chapters 1-3. Chapter 1: Introduction and applications of photogrammetry Chapter 2: Electro-magnetic radiation. Chapter 3: Basic optics

Chapters 1-3. Chapter 1: Introduction and applications of photogrammetry Chapter 2: Electro-magnetic radiation. Chapter 3: Basic optics Chapters 1-3 Chapter 1: Introduction and applications of photogrammetry Chapter 2: Electro-magnetic radiation Radiation sources Classification of remote sensing systems (passive & active) Electromagnetic

More information

Volume 1 - Module 6 Geometry of Aerial Photography. I. Classification of Photographs. Vertical

Volume 1 - Module 6 Geometry of Aerial Photography. I. Classification of Photographs. Vertical RSCC Volume 1 Introduction to Photo Interpretation and Photogrammetry Table of Contents Module 1 Module 2 Module 3.1 Module 3.2 Module 4 Module 5 Module 6 Module 7 Module 8 Labs Volume 1 - Module 6 Geometry

More information

Aerial photography: Principles. Frame capture sensors: Analog film and digital cameras

Aerial photography: Principles. Frame capture sensors: Analog film and digital cameras Aerial photography: Principles Frame capture sensors: Analog film and digital cameras Overview Introduction Frame vs scanning sensors Cameras (film and digital) Photogrammetry Orthophotos Air photos are

More information

Photogrammetry. Lecture 4 September 7, 2005

Photogrammetry. Lecture 4 September 7, 2005 Photogrammetry Lecture 4 September 7, 2005 What is Photogrammetry Photogrammetry is the art and science of making accurate measurements by means of aerial photography: Analog photogrammetry (using films:

More information

Phase One 190MP Aerial System

Phase One 190MP Aerial System White Paper Phase One 190MP Aerial System Introduction Phase One Industrial s 100MP medium format aerial camera systems have earned a worldwide reputation for its high performance. They are commonly used

More information

Lecture 7. Leica ADS 80 Camera System and Imagery. Ontario ADS 80 FRI Imagery. NRMT 2270, Photogrammetry/Remote Sensing

Lecture 7. Leica ADS 80 Camera System and Imagery. Ontario ADS 80 FRI Imagery. NRMT 2270, Photogrammetry/Remote Sensing NRMT 2270, Photogrammetry/Remote Sensing Lecture 7 Leica ADS 80 Camera System and Imagery. Ontario ADS 80 FRI Imagery. Tomislav Sapic GIS Technologist Faculty of Natural Resources Management Lakehead University

More information

Leica ADS80 - Digital Airborne Imaging Solution NAIP, Salt Lake City 4 December 2008

Leica ADS80 - Digital Airborne Imaging Solution NAIP, Salt Lake City 4 December 2008 Luzern, Switzerland, acquired at 5 cm GSD, 2008. Leica ADS80 - Digital Airborne Imaging Solution NAIP, Salt Lake City 4 December 2008 Shawn Slade, Doug Flint and Ruedi Wagner Leica Geosystems AG, Airborne

More information

Sample Copy. Not For Distribution.

Sample Copy. Not For Distribution. Photogrammetry, GIS & Remote Sensing Quick Reference Book i EDUCREATION PUBLISHING Shubham Vihar, Mangla, Bilaspur, Chhattisgarh - 495001 Website: www.educreation.in Copyright, 2017, S.S. Manugula, V.

More information

Chapters 1 & 2. Definitions and applications Conceptual basis of photogrammetric processing

Chapters 1 & 2. Definitions and applications Conceptual basis of photogrammetric processing Chapters 1 & 2 Chapter 1: Photogrammetry Definitions and applications Conceptual basis of photogrammetric processing Transition from two-dimensional imagery to three-dimensional information Automation

More information

CEE 6100 / CSS 6600 Remote Sensing Fundamentals 1 Topic 4: Photogrammetry

CEE 6100 / CSS 6600 Remote Sensing Fundamentals 1 Topic 4: Photogrammetry CEE 6100 / CSS 6600 Remote Sensing Fundamentals 1 PHOTOGRAMMETRY DEFINITION (adapted from Manual of Photographic Interpretation, 2 nd edition, Warren Philipson, 1997) Photogrammetry and Remote Sensing:

More information

not to be republished NCERT Introduction To Aerial Photographs Chapter 6

not to be republished NCERT Introduction To Aerial Photographs Chapter 6 Chapter 6 Introduction To Aerial Photographs Figure 6.1 Terrestrial photograph of Mussorrie town of similar features, then we have to place ourselves somewhere in the air. When we do so and look down,

More information

11/25/2009 CHAPTER THREE INTRODUCTION INTRODUCTION (CONT D) THE AERIAL CAMERA: LENS PHOTOGRAPHIC SENSORS

11/25/2009 CHAPTER THREE INTRODUCTION INTRODUCTION (CONT D) THE AERIAL CAMERA: LENS PHOTOGRAPHIC SENSORS INTRODUCTION CHAPTER THREE IC SENSORS Photography means to write with light Today s meaning is often expanded to include radiation just outside the visible spectrum, i. e. ultraviolet and near infrared

More information

NREM 345 Week 2, Material covered this week contributes to the accomplishment of the following course goal:

NREM 345 Week 2, Material covered this week contributes to the accomplishment of the following course goal: NREM 345 Week 2, 2010 Reading assignment: Chapter. 4 and Sec. 5.1 to 5.2.4 Material covered this week contributes to the accomplishment of the following course goal: Goal 1: Develop the understanding and

More information

Introduction to Photogeology

Introduction to Photogeology Geological Mapping 1 Academic Year 2016/2017 Introduction to Photogeology Igor Vlahović igor.vlahovic@rgn.hr Today we will say a little about basic photogeological analysis of terrain: about aerial photographs,

More information

Mapping Cameras. Chapter Three Introduction

Mapping Cameras. Chapter Three Introduction Chapter Three Mapping Cameras 3.1. Introduction This chapter introduces sensors used for acquiring aerial photographs. Although cameras are the oldest form of remote sensing instrument, they have changed

More information

PHOTOGRAMMETRY STEREOSCOPY FLIGHT PLANNING PHOTOGRAMMETRIC DEFINITIONS GROUND CONTROL INTRODUCTION

PHOTOGRAMMETRY STEREOSCOPY FLIGHT PLANNING PHOTOGRAMMETRIC DEFINITIONS GROUND CONTROL INTRODUCTION PHOTOGRAMMETRY STEREOSCOPY FLIGHT PLANNING PHOTOGRAMMETRIC DEFINITIONS GROUND CONTROL INTRODUCTION Before aerial photography and photogrammetry became a reliable mapping tool, planimetric and topographic

More information

2019 NYSAPLS Conf> Fundamentals of Photogrammetry for Land Surveyors

2019 NYSAPLS Conf> Fundamentals of Photogrammetry for Land Surveyors 2019 NYSAPLS Conf> Fundamentals of Photogrammetry for Land Surveyors George Southard GSKS Associates LLC Introduction George Southard: Master s Degree in Photogrammetry and Cartography 40 years working

More information

Remote Sensing Platforms

Remote Sensing Platforms Types of Platforms Lighter-than-air Remote Sensing Platforms Free floating balloons Restricted by atmospheric conditions Used to acquire meteorological/atmospheric data Blimps/dirigibles Major role - news

More information

Digital Aerial Photography UNBC March 22, Presented by: Dick Mynen TDB Consultants Inc.

Digital Aerial Photography UNBC March 22, Presented by: Dick Mynen TDB Consultants Inc. Digital Aerial Photography UNBC March 22, 2011 Presented by: Dick Mynen TDB Consultants Inc. Airborne Large Scale Digital Photography Who is using the technology in today s environment Options available

More information

LECTURE NOTES 2016 CONTENTS. Sensors and Platforms for Acquisition of Aerial and Satellite Image Data

LECTURE NOTES 2016 CONTENTS. Sensors and Platforms for Acquisition of Aerial and Satellite Image Data LECTURE NOTES 2016 Prof. John TRINDER School of Civil and Environmental Engineering Telephone: (02) 9 385 5020 Fax: (02) 9 313 7493 j.trinder@unsw.edu.au CONTENTS Chapter 1 Chapter 2 Sensors and Platforms

More information

An Introduction to Geomatics. Prepared by: Dr. Maher A. El-Hallaq خاص بطلبة مساق مقدمة في علم. Associate Professor of Surveying IUG

An Introduction to Geomatics. Prepared by: Dr. Maher A. El-Hallaq خاص بطلبة مساق مقدمة في علم. Associate Professor of Surveying IUG An Introduction to Geomatics خاص بطلبة مساق مقدمة في علم الجيوماتكس Prepared by: Dr. Maher A. El-Hallaq Associate Professor of Surveying IUG 1 Airborne Imagery Dr. Maher A. El-Hallaq Associate Professor

More information

Phase One ixu-rs1000 Accuracy Assessment Report Yu. Raizman, PhaseOne.Industrial, Israel

Phase One ixu-rs1000 Accuracy Assessment Report Yu. Raizman, PhaseOne.Industrial, Israel 17 th International Scientific and Technical Conference FROM IMAGERY TO DIGITAL REALITY: ERS & Photogrammetry Phase One ixu-rs1000 Accuracy Assessment Report Yu. Raizman, PhaseOne.Industrial, Israel 1.

More information

HIGH RESOLUTION COLOR IMAGERY FOR ORTHOMAPS AND REMOTE SENSING. Author: Peter Fricker Director Product Management Image Sensors

HIGH RESOLUTION COLOR IMAGERY FOR ORTHOMAPS AND REMOTE SENSING. Author: Peter Fricker Director Product Management Image Sensors HIGH RESOLUTION COLOR IMAGERY FOR ORTHOMAPS AND REMOTE SENSING Author: Peter Fricker Director Product Management Image Sensors Co-Author: Tauno Saks Product Manager Airborne Data Acquisition Leica Geosystems

More information

Consumer digital CCD cameras

Consumer digital CCD cameras CAMERAS Consumer digital CCD cameras Leica RC-30 Aerial Cameras Zeiss RMK Zeiss RMK in aircraft Vexcel UltraCam Digital (note multiple apertures Lenses for Leica RC-30. Many elements needed to minimize

More information

POTENTIAL OF LARGE FORMAT DIGITAL AERIAL CAMERAS. Dr. Karsten Jacobsen Leibniz University Hannover, Germany

POTENTIAL OF LARGE FORMAT DIGITAL AERIAL CAMERAS. Dr. Karsten Jacobsen Leibniz University Hannover, Germany POTENTIAL OF LARGE FORMAT DIGITAL AERIAL CAMERAS Dr. Karsten Jacobsen Leibniz University Hannover, Germany jacobsen@ipi.uni-hannover.de Introduction: Digital aerial cameras are replacing traditional analogue

More information

Abstract Quickbird Vs Aerial photos in identifying man-made objects

Abstract Quickbird Vs Aerial photos in identifying man-made objects Abstract Quickbird Vs Aerial s in identifying man-made objects Abdullah Mah abdullah.mah@aramco.com Remote Sensing Group, emap Division Integrated Solutions Services Department (ISSD) Saudi Aramco, Dhahran

More information

PROPERTY OF THE LARGE FORMAT DIGITAL AERIAL CAMERA DMC II

PROPERTY OF THE LARGE FORMAT DIGITAL AERIAL CAMERA DMC II PROPERTY OF THE LARGE FORMAT DIGITAL AERIAL CAMERA II K. Jacobsen a, K. Neumann b a Institute of Photogrammetry and GeoInformation, Leibniz University Hannover, Germany jacobsen@ipi.uni-hannover.de b Z/I

More information

High Resolution Sensor Test Comparison with SPOT, KFA1000, KVR1000, IRS-1C and DPA in Lower Saxony

High Resolution Sensor Test Comparison with SPOT, KFA1000, KVR1000, IRS-1C and DPA in Lower Saxony High Resolution Sensor Test Comparison with SPOT, KFA1000, KVR1000, IRS-1C and DPA in Lower Saxony K. Jacobsen, G. Konecny, H. Wegmann Abstract The Institute for Photogrammetry and Engineering Surveys

More information

Airborne or Spaceborne Images for Topographic Mapping?

Airborne or Spaceborne Images for Topographic Mapping? Advances in Geosciences Konstantinos Perakis, Editor EARSeL, 2012 Airborne or Spaceborne Images for Topographic Mapping? Karsten Jacobsen Leibniz University Hannover, Institute of Photogrammetry and Geoinformation,

More information

CALIBRATING THE NEW ULTRACAM OSPREY OBLIQUE AERIAL SENSOR Michael Gruber, Wolfgang Walcher

CALIBRATING THE NEW ULTRACAM OSPREY OBLIQUE AERIAL SENSOR Michael Gruber, Wolfgang Walcher CALIBRATING THE NEW ULTRACAM OSPREY OBLIQUE AERIAL SENSOR Michael Gruber, Wolfgang Walcher Microsoft UltraCam Business Unit Anzengrubergasse 8/4, 8010 Graz / Austria {michgrub, wwalcher}@microsoft.com

More information

Relief Displacement of Vertical Features

Relief Displacement of Vertical Features G 210 Lab. Relief Displacement of Vertical Features An increase in the elevation of a feature causes its position on the photograph to be displaced radially outward from the principle point. Hence, when

More information

COPYRIGHTED MATERIAL. Overview

COPYRIGHTED MATERIAL. Overview In normal experience, our eyes are constantly in motion, roving over and around objects and through ever-changing environments. Through this constant scanning, we build up experience data, which is manipulated

More information

UltraCam and UltraMap Towards All in One Solution by Photogrammetry

UltraCam and UltraMap Towards All in One Solution by Photogrammetry Photogrammetric Week '11 Dieter Fritsch (Ed.) Wichmann/VDE Verlag, Belin & Offenbach, 2011 Wiechert, Gruber 33 UltraCam and UltraMap Towards All in One Solution by Photogrammetry ALEXANDER WIECHERT, MICHAEL

More information

COPYRIGHTED MATERIAL OVERVIEW 1

COPYRIGHTED MATERIAL OVERVIEW 1 OVERVIEW 1 In normal experience, our eyes are constantly in motion, roving over and around objects and through ever-changing environments. Through this constant scanning, we build up experiential data,

More information

IMAGE FORMATION. Light source properties. Sensor characteristics Surface. Surface reflectance properties. Optics

IMAGE FORMATION. Light source properties. Sensor characteristics Surface. Surface reflectance properties. Optics IMAGE FORMATION Light source properties Sensor characteristics Surface Exposure shape Optics Surface reflectance properties ANALOG IMAGES An image can be understood as a 2D light intensity function f(x,y)

More information

Film Cameras Digital SLR Cameras Point and Shoot Bridge Compact Mirror less

Film Cameras Digital SLR Cameras Point and Shoot Bridge Compact Mirror less Film Cameras Digital SLR Cameras Point and Shoot Bridge Compact Mirror less Portraits Landscapes Macro Sports Wildlife Architecture Fashion Live Music Travel Street Weddings Kids Food CAMERA SENSOR

More information

UAV PHOTOGRAMMETRY COMPARED TO TRADITIONAL RTK GPS SURVEYING

UAV PHOTOGRAMMETRY COMPARED TO TRADITIONAL RTK GPS SURVEYING UAV PHOTOGRAMMETRY COMPARED TO TRADITIONAL RTK GPS SURVEYING Brad C. Mathison and Amber Warlick March 20, 2016 Fearless Eye Inc. Kansas City, Missouri www.fearlesseye.com KEY WORDS: UAV, UAS, Accuracy

More information

Application of GIS for earthquake hazard and risk assessment: Kathmandu, Nepal. Part 2: Data preparation GIS CASE STUDY

Application of GIS for earthquake hazard and risk assessment: Kathmandu, Nepal. Part 2: Data preparation GIS CASE STUDY GIS CASE STUDY Application of GIS for earthquake hazard and risk assessment: Kathmandu, Nepal Part 2: Data preparation Cees van Westen (E-mail : westen@itc.nl) Siefko Slob (E-mail: Slob@itc.nl) Lorena

More information

Chapter 36. Image Formation

Chapter 36. Image Formation Chapter 36 Image Formation Image of Formation Images can result when light rays encounter flat or curved surfaces between two media. Images can be formed either by reflection or refraction due to these

More information

EXAMPLES OF TOPOGRAPHIC MAPS PRODUCED FROM SPACE AND ACHIEVED ACCURACY CARAVAN Workshop on Mapping from Space, Phnom Penh, June 2000

EXAMPLES OF TOPOGRAPHIC MAPS PRODUCED FROM SPACE AND ACHIEVED ACCURACY CARAVAN Workshop on Mapping from Space, Phnom Penh, June 2000 EXAMPLES OF TOPOGRAPHIC MAPS PRODUCED FROM SPACE AND ACHIEVED ACCURACY CARAVAN Workshop on Mapping from Space, Phnom Penh, June 2000 Jacobsen, Karsten University of Hannover Email: karsten@ipi.uni-hannover.de

More information

Lesson 4: Photogrammetry

Lesson 4: Photogrammetry This work by the National Information Security and Geospatial Technologies Consortium (NISGTC), and except where otherwise Development was funded by the Department of Labor (DOL) Trade Adjustment Assistance

More information

Section 3. Imaging With A Thin Lens

Section 3. Imaging With A Thin Lens 3-1 Section 3 Imaging With A Thin Lens Object at Infinity An object at infinity produces a set of collimated set of rays entering the optical system. Consider the rays from a finite object located on the

More information

While film cameras still

While film cameras still aerial perspective by Mathias Lemmens, editor-in-chief, GIM International Digital Aerial Cameras System Configurations and Sensor Architectures Editor s note: This issue includes an extensive product survey

More information

Vexcel Imaging GmbH Innovating in Photogrammetry: UltraCamXp, UltraCamLp and UltraMap

Vexcel Imaging GmbH Innovating in Photogrammetry: UltraCamXp, UltraCamLp and UltraMap Photogrammetric Week '09 Dieter Fritsch (Ed.) Wichmann Verlag, Heidelberg, 2009 Wiechert, Gruber 27 Vexcel Imaging GmbH Innovating in Photogrammetry: UltraCamXp, UltraCamLp and UltraMap ALEXANDER WIECHERT,

More information

Module 3 Introduction to GIS. Lecture 8 GIS data acquisition

Module 3 Introduction to GIS. Lecture 8 GIS data acquisition Module 3 Introduction to GIS Lecture 8 GIS data acquisition GIS workflow Data acquisition (geospatial data input) GPS Remote sensing (satellites, UAV s) LiDAR Digitized maps Attribute Data Management Data

More information

LENSES. INEL 6088 Computer Vision

LENSES. INEL 6088 Computer Vision LENSES INEL 6088 Computer Vision Digital camera A digital camera replaces film with a sensor array Each cell in the array is a Charge Coupled Device light-sensitive diode that converts photons to electrons

More information

Leica - 3 rd Generation Airborne Digital Sensors Features / Benefits for Remote Sensing & Environmental Applications

Leica - 3 rd Generation Airborne Digital Sensors Features / Benefits for Remote Sensing & Environmental Applications Leica - 3 rd Generation Airborne Digital Sensors Features / Benefits for Remote Sensing & Environmental Applications Arthur Rohrbach, Sensor Sales Dir Europe, Middle-East and Africa (EMEA) Luzern, Switzerland,

More information

Image Formation by Lenses

Image Formation by Lenses Image Formation by Lenses Bởi: OpenStaxCollege Lenses are found in a huge array of optical instruments, ranging from a simple magnifying glass to the eye to a camera s zoom lens. In this section, we will

More information

IMAGE ACQUISITION GUIDELINES FOR SFM

IMAGE ACQUISITION GUIDELINES FOR SFM IMAGE ACQUISITION GUIDELINES FOR SFM a.k.a. Close-range photogrammetry (as opposed to aerial/satellite photogrammetry) Basic SfM requirements (The Golden Rule): minimum of 60% overlap between the adjacent

More information

Remote Sensing Platforms

Remote Sensing Platforms Remote Sensing Platforms Remote Sensing Platforms - Introduction Allow observer and/or sensor to be above the target/phenomena of interest Two primary categories Aircraft Spacecraft Each type offers different

More information

Remote Sensing of the Environment An Earth Resource Perspective John R. Jensen Second Edition

Remote Sensing of the Environment An Earth Resource Perspective John R. Jensen Second Edition Remote Sensing of the Environment An Earth Resource Perspective John R. Jensen Second Edition Pearson Education Limited Edinburgh Gate Harlow Essex CM20 2JE England and Associated Companies throughout

More information

PHOTOGRAMMETRIC RESECTION DIFFERENCES BASED ON LABORATORY vs. OPERATIONAL CALIBRATIONS

PHOTOGRAMMETRIC RESECTION DIFFERENCES BASED ON LABORATORY vs. OPERATIONAL CALIBRATIONS PHOTOGRAMMETRIC RESECTION DIFFERENCES BASED ON LABORATORY vs. OPERATIONAL CALIBRATIONS Dean C. MERCHANT Topo Photo Inc. Columbus, Ohio USA merchant.2@osu.edu KEY WORDS: Photogrammetry, Calibration, GPS,

More information

What is Photogrammetry

What is Photogrammetry Photogrammetry What is Photogrammetry Photogrammetry is the art and science of making accurate measurements by means of aerial photography: Analog photogrammetry (using films: hard-copy photos) Digital

More information

TELLS THE NUMBER OF PIXELS THE TRUTH? EFFECTIVE RESOLUTION OF LARGE SIZE DIGITAL FRAME CAMERAS

TELLS THE NUMBER OF PIXELS THE TRUTH? EFFECTIVE RESOLUTION OF LARGE SIZE DIGITAL FRAME CAMERAS TELLS THE NUMBER OF PIXELS THE TRUTH? EFFECTIVE RESOLUTION OF LARGE SIZE DIGITAL FRAME CAMERAS Karsten Jacobsen Leibniz University Hannover Nienburger Str. 1 D-30167 Hannover, Germany jacobsen@ipi.uni-hannover.de

More information

Lesson 12. Stereoscopy and Photo Preparation. Steven J. Steinberg

Lesson 12. Stereoscopy and Photo Preparation. Steven J. Steinberg Lesson 12 Stereoscopy and Photo Preparation Steven J. Steinberg Description: The lessons in this section focus on stereoscopy and photo preparation. We begin with a discussion of the principles of stereoscopy.

More information

GEO 428: DEMs from GPS, Imagery, & Lidar Tuesday, September 11

GEO 428: DEMs from GPS, Imagery, & Lidar Tuesday, September 11 GEO 428: DEMs from GPS, Imagery, & Lidar Tuesday, September 11 Global Positioning Systems GPS is a technology that provides Location coordinates Elevation For any location with a decent view of the sky

More information

VisionMap Sensors and Processing Roadmap

VisionMap Sensors and Processing Roadmap Vilan, Gozes 51 VisionMap Sensors and Processing Roadmap YARON VILAN, ADI GOZES, Tel-Aviv ABSTRACT The A3 is a family of digital aerial mapping cameras and photogrammetric processing systems, which is

More information

PRODUCT OVERVIEW FOR THE. Corona 350 II FLIR SYSTEMS POLYTECH AB

PRODUCT OVERVIEW FOR THE. Corona 350 II FLIR SYSTEMS POLYTECH AB PRODUCT OVERVIEW FOR THE Corona 350 II FLIR SYSTEMS POLYTECH AB Table of Contents Table of Contents... 1 Introduction... 2 Overview... 2 Purpose... 2 Airborne Data Acquisition and Management Software (ADAMS)...

More information

Advanced Optical Satellite (ALOS-3) Overviews

Advanced Optical Satellite (ALOS-3) Overviews K&C Science Team meeting #24 Tokyo, Japan, January 29-31, 2018 Advanced Optical Satellite (ALOS-3) Overviews January 30, 2018 Takeo Tadono 1, Hidenori Watarai 1, Ayano Oka 1, Yousei Mizukami 1, Junichi

More information

Chapter 36. Image Formation

Chapter 36. Image Formation Chapter 36 Image Formation Notation for Mirrors and Lenses The object distance is the distance from the object to the mirror or lens Denoted by p The image distance is the distance from the image to the

More information

Introduction to Photogrammetry

Introduction to Photogrammetry Introduction to Photogrammetry Presented By: Sasanka Madawalagama Geoinformatics Center Asian Institute of Technology Thailand www.geoinfo.ait.asia Content Introduction to photogrammetry 2D to 3D Drones

More information

CSI: Rombalds Moor Photogrammetry Photography

CSI: Rombalds Moor Photogrammetry Photography Photogrammetry Photography Photogrammetry Training 26 th March 10:00 Welcome Presentation image capture Practice 12:30 13:15 Lunch More practice 16:00 (ish) Finish or earlier What is photogrammetry 'photo'

More information

9/12/2011. Training Course Remote Sensing Basic Theory & Image Processing Methods September 2011

9/12/2011. Training Course Remote Sensing Basic Theory & Image Processing Methods September 2011 Training Course Remote Sensing Basic Theory & Image Processing Methods 19 23 September 2011 Remote Sensing Platforms Michiel Damen (September 2011) damen@itc.nl 1 Overview Platforms & missions aerial surveys

More information

NEWS FROM THE ULTRACAM CAMERA LINE-UP INTRODUCTION

NEWS FROM THE ULTRACAM CAMERA LINE-UP INTRODUCTION NEWS FROM THE ULTRACAM CAMERA LINE-UP Alexander Wiechert, Michael Gruber Vexcel Imaging Austria / Microsoft Photogrammetry Anzengrubergasse 8/4, 8010 Graz / Austria {alwieche, michgrub}@microsoft.com ABSTRACT

More information

MIT CSAIL Advances in Computer Vision Fall Problem Set 6: Anaglyph Camera Obscura

MIT CSAIL Advances in Computer Vision Fall Problem Set 6: Anaglyph Camera Obscura MIT CSAIL 6.869 Advances in Computer Vision Fall 2013 Problem Set 6: Anaglyph Camera Obscura Posted: Tuesday, October 8, 2013 Due: Thursday, October 17, 2013 You should submit a hard copy of your work

More information

CALIBRATION OF IMAGING SATELLITE SENSORS

CALIBRATION OF IMAGING SATELLITE SENSORS CALIBRATION OF IMAGING SATELLITE SENSORS Jacobsen, K. Institute of Photogrammetry and GeoInformation, University of Hannover jacobsen@ipi.uni-hannover.de KEY WORDS: imaging satellites, geometry, calibration

More information

SFR 406 Spring 2015 Lecture 7 Notes Film Types and Filters

SFR 406 Spring 2015 Lecture 7 Notes Film Types and Filters SFR 406 Spring 2015 Lecture 7 Notes Film Types and Filters 1. Film Resolution Introduction Resolution relates to the smallest size features that can be detected on the film. The resolving power is a related

More information

6.098 Digital and Computational Photography Advanced Computational Photography. Bill Freeman Frédo Durand MIT - EECS

6.098 Digital and Computational Photography Advanced Computational Photography. Bill Freeman Frédo Durand MIT - EECS 6.098 Digital and Computational Photography 6.882 Advanced Computational Photography Bill Freeman Frédo Durand MIT - EECS Administrivia PSet 1 is out Due Thursday February 23 Digital SLR initiation? During

More information

ABOUT FRAME VERSUS PUSH-BROOM AERIAL CAMERAS

ABOUT FRAME VERSUS PUSH-BROOM AERIAL CAMERAS ABOUT FRAME VERSUS PUSH-BROOM AERIAL CAMERAS Franz Leberl and Michael Gruber Microsoft Photogrammetry, 8010 Graz ABSTRACT When presenting digital large format aerial cameras to the interested community

More information

Photo Scale The photo scale and representative fraction may be calculated as follows: PS = f / H Variables: PS - Photo Scale, f - camera focal

Photo Scale The photo scale and representative fraction may be calculated as follows: PS = f / H Variables: PS - Photo Scale, f - camera focal Scale Scale is the ratio of a distance on an aerial photograph to that same distance on the ground in the real world. It can be expressed in unit equivalents like 1 inch = 1,000 feet (or 12,000 inches)

More information

F-number sequence. a change of f-number to the next in the sequence corresponds to a factor of 2 change in light intensity,

F-number sequence. a change of f-number to the next in the sequence corresponds to a factor of 2 change in light intensity, 1 F-number sequence a change of f-number to the next in the sequence corresponds to a factor of 2 change in light intensity, 0.7, 1, 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22, 32, Example: What is the difference

More information

R 1 R 2 R 3. t 1 t 2. n 1 n 2

R 1 R 2 R 3. t 1 t 2. n 1 n 2 MASSACHUSETTS INSTITUTE OF TECHNOLOGY 2.71/2.710 Optics Spring 14 Problem Set #2 Posted Feb. 19, 2014 Due Wed Feb. 26, 2014 1. (modified from Pedrotti 18-9) A positive thin lens of focal length 10cm is

More information

Dr F. Cuzzolin 1. September 29, 2015

Dr F. Cuzzolin 1. September 29, 2015 P00407 Principles of Computer Vision 1 1 Department of Computing and Communication Technologies Oxford Brookes University, UK September 29, 2015 September 29, 2015 1 / 73 Outline of the Lecture 1 2 Basics

More information

Govt. Engineering College Jhalawar Model Question Paper Subject- Remote Sensing & GIS

Govt. Engineering College Jhalawar Model Question Paper Subject- Remote Sensing & GIS Govt. Engineering College Jhalawar Model Question Paper Subject- Remote Sensing & GIS Time: Max. Marks: Q1. What is remote Sensing? Explain the basic components of a Remote Sensing system. Q2. What is

More information

Distance Estimation with a Two or Three Aperture SLR Digital Camera

Distance Estimation with a Two or Three Aperture SLR Digital Camera Distance Estimation with a Two or Three Aperture SLR Digital Camera Seungwon Lee, Joonki Paik, and Monson H. Hayes Graduate School of Advanced Imaging Science, Multimedia, and Film Chung-Ang University

More information

Topic 6 - Optics Depth of Field and Circle Of Confusion

Topic 6 - Optics Depth of Field and Circle Of Confusion Topic 6 - Optics Depth of Field and Circle Of Confusion Learning Outcomes In this lesson, we will learn all about depth of field and a concept known as the Circle of Confusion. By the end of this lesson,

More information

Cameras. Digital Visual Effects, Spring 2008 Yung-Yu Chuang 2008/2/26. with slides by Fredo Durand, Brian Curless, Steve Seitz and Alexei Efros

Cameras. Digital Visual Effects, Spring 2008 Yung-Yu Chuang 2008/2/26. with slides by Fredo Durand, Brian Curless, Steve Seitz and Alexei Efros Cameras Digital Visual Effects, Spring 2008 Yung-Yu Chuang 2008/2/26 with slides by Fredo Durand, Brian Curless, Steve Seitz and Alexei Efros Camera trial #1 scene film Put a piece of film in front of

More information

IMAGE SENSOR SOLUTIONS. KAC-96-1/5" Lens Kit. KODAK KAC-96-1/5" Lens Kit. for use with the KODAK CMOS Image Sensors. November 2004 Revision 2

IMAGE SENSOR SOLUTIONS. KAC-96-1/5 Lens Kit. KODAK KAC-96-1/5 Lens Kit. for use with the KODAK CMOS Image Sensors. November 2004 Revision 2 KODAK for use with the KODAK CMOS Image Sensors November 2004 Revision 2 1.1 Introduction Choosing the right lens is a critical aspect of designing an imaging system. Typically the trade off between image

More information

CS559: Computer Graphics. Lecture 2: Image Formation in Eyes and Cameras Li Zhang Spring 2008

CS559: Computer Graphics. Lecture 2: Image Formation in Eyes and Cameras Li Zhang Spring 2008 CS559: Computer Graphics Lecture 2: Image Formation in Eyes and Cameras Li Zhang Spring 2008 Today Eyes Cameras Light Why can we see? Visible Light and Beyond Infrared, e.g. radio wave longer wavelength

More information

5 180 o Field-of-View Imaging Polarimetry

5 180 o Field-of-View Imaging Polarimetry 5 180 o Field-of-View Imaging Polarimetry 51 5 180 o Field-of-View Imaging Polarimetry 5.1 Simultaneous Full-Sky Imaging Polarimeter with a Spherical Convex Mirror North and Duggin (1997) developed a practical

More information

Unmanned Aerial Vehicle Data Acquisition for Damage Assessment in. Hurricane Events

Unmanned Aerial Vehicle Data Acquisition for Damage Assessment in. Hurricane Events Unmanned Aerial Vehicle Data Acquisition for Damage Assessment in Hurricane Events Stuart M. Adams a Carol J. Friedland b and Marc L. Levitan c ABSTRACT This paper examines techniques for data collection

More information

CALIBRATION OF OPTICAL SATELLITE SENSORS

CALIBRATION OF OPTICAL SATELLITE SENSORS CALIBRATION OF OPTICAL SATELLITE SENSORS KARSTEN JACOBSEN University of Hannover Institute of Photogrammetry and Geoinformation Nienburger Str. 1, D-30167 Hannover, Germany jacobsen@ipi.uni-hannover.de

More information

Overview. Objectives. The ultimate goal is to compare the performance that different equipment offers us in a photogrammetric flight.

Overview. Objectives. The ultimate goal is to compare the performance that different equipment offers us in a photogrammetric flight. Overview At present, one of the most commonly used technique for topographic surveys is aerial photogrammetry. This technique uses aerial images to determine the geometric properties of objects and spatial

More information

Experimental aerial photogrammetry with professional non metric camera Canon EOS 5D

Experimental aerial photogrammetry with professional non metric camera Canon EOS 5D Experimental aerial photogrammetry with professional non metric camera Canon EOS 5D Ante Sladojević, Goran Mrvoš Galileo Geo Sustavi, Croatia 1. Introduction With this project we wanted to test professional

More information

UltraCam Eagle Prime Aerial Sensor Calibration and Validation

UltraCam Eagle Prime Aerial Sensor Calibration and Validation UltraCam Eagle Prime Aerial Sensor Calibration and Validation Michael Gruber, Marc Muick Vexcel Imaging GmbH Anzengrubergasse 8/4, 8010 Graz / Austria {michael.gruber, marc.muick}@vexcel-imaging.com Key

More information

UltraCam and UltraMap An Update

UltraCam and UltraMap An Update Photogrammetric Week '15 Dieter Fritsch (Ed.) Wichmann/VDE Verlag, Belin & Offenbach, 2015 Wiechert, Gruber 45 UltraCam and UltraMap An Update Alexander Wiechert, Michael Gruber, Graz ABSTRACT When UltraCam

More information

RESEARCH ON LOW ALTITUDE IMAGE ACQUISITION SYSTEM

RESEARCH ON LOW ALTITUDE IMAGE ACQUISITION SYSTEM RESEARCH ON LOW ALTITUDE IMAGE ACQUISITION SYSTEM 1, Hongxia Cui, Zongjian Lin, Jinsong Zhang 3,* 1 Department of Information Science and Engineering, University of Bohai, Jinzhou, Liaoning Province,11,

More information

RPAS Photogrammetric Mapping Workflow and Accuracy

RPAS Photogrammetric Mapping Workflow and Accuracy RPAS Photogrammetric Mapping Workflow and Accuracy Dr Yincai Zhou & Dr Craig Roberts Surveying and Geospatial Engineering School of Civil and Environmental Engineering, UNSW Background RPAS category and

More information

Announcement A total of 5 (five) late days are allowed for projects. Office hours

Announcement A total of 5 (five) late days are allowed for projects. Office hours Announcement A total of 5 (five) late days are allowed for projects. Office hours Me: 3:50-4:50pm Thursday (or by appointment) Jake: 12:30-1:30PM Monday and Wednesday Image Formation Digital Camera Film

More information

9/19/16. A Closer Look. Danae Wolfe. What We ll Cover. Basics of photography & your camera. Technical. Macro & close-up techniques.

9/19/16. A Closer Look. Danae Wolfe. What We ll Cover. Basics of photography & your camera. Technical. Macro & close-up techniques. A Closer Look Danae Wolfe What We ll Cover Basics of photography & your camera Technical Macro & close-up techniques Creative 1 What is Photography? Photography: the art, science, & practice of creating

More information

Cameras. Outline. Pinhole camera. Camera trial #1. Pinhole camera Film camera Digital camera Video camera

Cameras. Outline. Pinhole camera. Camera trial #1. Pinhole camera Film camera Digital camera Video camera Outline Cameras Pinhole camera Film camera Digital camera Video camera Digital Visual Effects, Spring 2007 Yung-Yu Chuang 2007/3/6 with slides by Fredo Durand, Brian Curless, Steve Seitz and Alexei Efros

More information

OPTICAL SYSTEMS OBJECTIVES

OPTICAL SYSTEMS OBJECTIVES 101 L7 OPTICAL SYSTEMS OBJECTIVES Aims Your aim here should be to acquire a working knowledge of the basic components of optical systems and understand their purpose, function and limitations in terms

More information

CHAPTER 8 AERIAL PHOTOGRAPHS

CHAPTER 8 AERIAL PHOTOGRAPHS CHAPTER 8 AERIAL PHOTOGRAPHS An aerial photograph is any photograph taken from an airborne vehicle (aircraft, drones, balloons, satellites, and so forth). The aerial photograph has many uses in military

More information

Getting light to imager. Capturing Images. Depth and Distance. Ideal Imaging. CS559 Lecture 2 Lights, Cameras, Eyes

Getting light to imager. Capturing Images. Depth and Distance. Ideal Imaging. CS559 Lecture 2 Lights, Cameras, Eyes CS559 Lecture 2 Lights, Cameras, Eyes Last time: what is an image idea of image-based (raster representation) Today: image capture/acquisition, focus cameras and eyes displays and intensities Corrected

More information

Principles of Photogrammetry

Principles of Photogrammetry Winter 2014 1 Instructor: Contact Information. Office: Room # ENE 229C. Tel: (403) 220-7105. E-mail: ahabib@ucalgary.ca Lectures (SB 148): Monday, Wednesday& Friday (10:00 a.m. 10:50 a.m.). Office Hours:

More information