EDGE AND LAPLACE BASED RESTORATION OF HAZY IMAGES
|
|
- Kelly Newman
- 5 years ago
- Views:
Transcription
1 INTERNATIONAL JOURNAL OF RESEARCH IN COMPUTER APPLICATIONS AND ROBOTICS ISSN EDGE AND LAPLACE BASED RESTORATION OF HAZY IMAGES 1 Priya Singh Patel, 2 Prof. Manisha Rathore Abstrat: - As the digital world is inreasing day by day so numbers of digital image proessing issues are overed by different researhers. Out of those this work fouses on Fog removal whih is also known as visibility restoration refers to different methods that aim to redue or remove the degradation that have ourred while the digital image was being obtained. The degradation may be due to various fators like relative objet-amera motion, blur due to amera miss-fous, relative atmospheri turbulene and others. This paper has utilized the Laplae base distortion detetion with edge information preserving. Combination of both these tehniques helps in identifying the atual olor values present in the original image sene. Experiment is done on many images of different environment or ategory. Results shows that proposed work is better as ompare to previous work in [8]. Index Terms Digital Image Proessing, Haze, Information Extration, Fog removal. Visibility restoration 1. INTRODUCTION Most outdoor visual systems suh as video surveillane, target traking, remote sensing and navigation ontrol and vehile autonomous driving and others are highly vulnerable to harsh environment, espeially beause of fog and haze. Images of outdoor sene an be signifiantly degraded due to the bad weather ondition suh as fog and haze. Thus it lead to the atmospheri sattering of tiny water droplets and atmospheri aerosol on the sene point, ausing image fuzzy, bad visibility, and seriously affeting the performane of an outdoor system. This happens beause of the presene of numerous atmospheri partiles whih absorbs and satters light. Suh degraded images lose all its ontrast and beome dim espeially in the distant regions and get blurred with their surroundings area. In order to make the system robust and reliable in bad weather onditions, it is neessary to dehaze that degraded image. In long distane photography or foggy senes, this proess has a substantial effet on the image in whih ontrasts are redued and surfae olors beome faint. Suh degraded images, photographs lak visual vividness and appeal and moreover, they offer a bad visibility of the ontents of the sene. This may also be the ase for satellite imaging whih is used for various purposes like web mapping, land-use planning and environmental studies et. P r i y a S i n g h P a t e l & P r o f. M a n i s h a R a t h o r e Page 62
2 In this proess light whih should have to travel in straight lines is sattered and replaed by the previously sattered light alled the airlight. The main objetive here is to enhane the images whih are taken under poor visibility and even restore the lear-day visibility of that sene. There are many irumstanes for whih aurate haze removal algorithms are needed. The major goal of the haze removal algorithms is to enhane and reover the detail of the sene from the haze image. Visibility restoration [1] refers to different methods that aim to redue or remove the degradation that have ourred while the digital image was being obtained. The degradation may be due to various fators like relative objetamera motion, blur due to amera misfous, relative atmospheri turbulene and others. In this we will be disussing about the degradations due to bad weather suh as fog, haze, rain and snow in an image. The image quality of outdoor sreen in the fog and haze weather ondition is usually degraded by the sattering of a light before reahing the amera due to these large quantities of suspended partiles (e.g. fog, haze, smoke, impurities) in the atmosphere. This phenomenon affets the normal work of automati monitoring system, outdoor reognition system and intelligent transportation system. Sattering is aused by two fundamental phenomena suh as attenuation and air light. By the usage of effetive haze removal of image we an improve the stability and robustness of the visual system. Haze removal is a tough task beause fog depends on the unknown sene depth information. Fog effet is the funtion of distane between amera and objet. Hene removal of fog requires the estimation of air light map or depth map. The urrent haze removal method an be divided into two ategories: image enhanement and image restoration. Image enhanement does not inlude the reasons of fog degrading image quality. This method an improve the ontrast of haze image but loses some of the information regarding image. Image restoration firstly studies the physial proess of image imaging in foggy weather. After observing that degradation model of fog image will be established. At last, the degradation proess is inverted to generate the fog free image without the degradation. So, the quality of degraded image ould be improved. 2. Related Work [1] introdued an experiene fusion method for various images by way of moving objets. The proposed method onsist a ghost removal algorithm in a low dynami series domain and a exposure fusion algorithm. The proposed ghost removal algorithm inludes a bidiretional normalization-based method for the finding of non-reliable pixels and a two-round hybrid method for the orretion of non-onstant pixels. A exposure fusion algorithm onsist a ontent adaptive bilateral filter, that extrats superior details from all the orreted images onurrently in asent domain. The final image is synthesized by seletively adding the extrated fine details to an in-between image that is generated by fusing all the orreted images via an existing multi-level algorithm. In [2] desribed a novel and effiient single image enhanement algorithm for haze image. As they monitor that, the ontrast and intensity of haze image After using dark hannel prior approah will neessarily tend to be lower than those of the real sene, they used histogram requirement to make an enhanement on image after dark hannel prior approah. They made a large number of experiments and find that, if dealing with a haze image with large Bakground area and low ontrast, dark hannel prior result will beome dark, also a general haze image after dark hannel ours different degree of anamorphous. They introdued an adaptive algorithm to repair the different kinds of an amorphose on the hazy image after dark hannel prior. P r i y a S i n g h P a t e l & P r o f. M a n i s h a R a t h o r e Page 63
3 In [3] projeted a fast yet tough tehnique to enhane the visibility of video frames using the dark hannel prior united with fuzzy logi-based tehnique. The dark hannel prior is a arithmetial uniformity of outdoor haze-free images based on the examination that most loal pathes in the haze-free images have pixels whih are dark in at least one olor hannel, where the fuzzy logi-based tehnique is used to plan an input spae to an output spae using a olletion of fuzzy membership funtions and poliy to deide deliately in ase of doubts. The ombination of the dark hannel and the fuzzy logi-based tehnique will make high quality haze-free images in real-time. In [5] has disussed that the within the last deades, improving the quality of an underwater image has one problem that is poor visibility of the image whih is aroused by physial properties of the water medium. In [6] proposed pereptual models that an be able to foreast the value of distorted images with as little prior information of the images or their deformation as possible. The new IQA model, whih is known as Natural Image Quality Evaluator is based on the prodution of a quality aware olletion of statistial features based on a simple and suessful spae area natural sene statisti model. In [7] proposed novel widespread guided image filtering method with the suggestion image generated by signal subspae projetion tehnique. It aepts ompliated parallel study through Monte Carlo imitation to hoose the dimensions of signal subspae in the path-based noisy images. The noise free image is reonstruted from the noisy image expeted onto the signifiant images by omponent analysis. Test images are utilized to deide the relationship between the most favorable parameter value and noise divergene that maximizes the output peak signal-to-noise ratio. In [8] has presented a new method alled mixture CLAHE olor models that speifially developed for underwater image enhanement. The proess performs CLAHE method on RGB and HSV olor models. The projeted tehnique has onsiderably enhaned the visual superiority of underwater digital images by enhaning illuminate, as well as dropping noise and artifats. 3. Proposed Methodology This paper fous on the digital hazy image restoration. Here image store the edge region of the image then apply Laplae distribution for pixel value restoration. Here whole work is explained in fig Pre-Proessing Here as the image is the olletion of pixels where eah pixel is representing a number that is refleting a number over there now for eah number depend on the format it has its range. So read a image means making a matrix of the same dimension of the image then fill the matrix orrespond to the pixel value of the image at the ell in the matrix. 3.2 Edge Detetion In order to find the edges in the image onvert it into gray format then apply the anny algorithm. This is the method to onvert an gray sale image into binary image. For this analysis of eah pixel is done. P r i y a S i n g h P a t e l & P r o f. M a n i s h a R a t h o r e Page 64
4 Image Dataset Pre-Proessing Canny Algorithm 16X16 Blok De- Fusion Laplae Distribution Adjustable Color Parameters Haze Thikness Estimation Combine Blok Edge Combine Fig. 3. Blok diagram of proposed Restoration Image Work. P r i y a S i n g h P a t e l & P r o f. M a n i s h a R a t h o r e Page 65
5 Edge feature: In ase of edge feature anny algorithm is applied Smooth the Image with Gaussian Filter. Compute the Gradient Magnitude and Orientation using finite-differene approximations for the partial derivatives. Apply non-maxima suppression to the gradient magnitude. Use the double thresholding algorithm to detet and link edges. 16X16 Blok: As work is done on olor image so embedding is done on the red matrix of the image, so whole operation of embedding is done this red matrix. Whole red, green, blue matrix is divided into 16X16 bloks for restoration of image. 3.3 Laplae Distribution Laplaian disibution help to find are non-diretional hanges beause they enhane linear features in any diretion in an image. They do not look at the gradient itself, but at the hanges in gradient. In their simplest form, they an be seen as the result of taking the seond derivative. In this step is mean of the blok or region S of image I having three olor hannel {red, green, blue}. So first is estimate whih at as the saling parameter of the laplae distribution. 1 I ( L) LS 1 P( ( L) S) LS 1 e 2 ( I M ( L) I ( L)) 3.4 Haze Thikness Estimation In this step olor adjustment parameter is alulate with the help of Laplae distribution values of eah blok. Here olor adjustment parameter is the ratio of the olor hromati parameter to the maximum value of the olor hromati parameter of eah hannel of the image. a max I Here is the olor hromati parameter obtain by the ratio of the maximum laplae distribution value of the olor region to the laplae distribution of the blok. Finally olor adjustment in the haze image is done by hange in pixel value ( I ( x) A ) J ( x) A max( t( x), t ) o P r i y a S i n g h P a t e l & P r o f. M a n i s h a R a t h o r e Page 66
6 Here A is atmospheri light adjustment parameter in the blok so for eah blok it is evaluate by 3.4 Edge Combination A min(max( S) I t( x) min A Here edge obtain from initial image is ombine in the new edge position obtain after applying laplae and haze thikness steps. This involve following working: 1. Loop 1:m 2. Loop 1:n 3. If I(m,n) //edge pixel in old but not in proessed image. 4. I_new(m,n) I(m,n) 5. EndLoop 6. EndLoop 4. Experiment And Result In this setion, first introdue experimental settings, and then present the experimental results that validate the effetiveness of the approah. The experiments atually ontain two parts. This work is ompare with other previous work in [8] whih have utilize the laplae and haze thikness estimation only. 4.1 Data Sets In order to ondut the experiment an artifiial dataset whih is a olletion of images from different ategory are utilize. As images are of different format so first it is neessary to make it in readable format for experiment tool MATLAB. Now this olletion of images of different ategory is shown in table 1. Category Garden Jungle Animal Person Table 1. Dataset of Different ategory. P r i y a S i n g h P a t e l & P r o f. M a n i s h a R a t h o r e Page 67
7 4.2 Results Original Image Image After Restortation Table 2. Results of various image from proposed restoration work. P r i y a S i n g h P a t e l & P r o f. M a n i s h a R a t h o r e Page 68
8 Images Visible Edge Restoration Proposed Previous Work Work 1 Garden Jungle Animal Person Table 3. Comparison of proposed work and previous work on visible edge restoration parameter. In table 3 It is obtained that proposed work is better as ompare to previous as edge restoration value of proposed work is higher as ompare to previous. So inlusion of edge feature in haze removal has inrease the performane of the work. Images Contrast Restoration Image Proposed Work Previous Work 1 Garden Jungle Animal Person Table 4. Comparison of proposed work and previous work on visible edge restoration parameter. In table 4 it is obtained that proposed work is better as ompare to previous as ontrast restoration image value of proposed work is higher as ompare to previous. So inlusion of edge feature in haze removal has inrease the performane of the work. P r i y a S i n g h P a t e l & P r o f. M a n i s h a R a t h o r e Page 69
9 Images Over or Under Exposed Metri Proposed Work Previous Work 1 Garden Jungle Animal Person Table 5. Comparison of proposed work and previous work on visible edge restoration parameter. In table 5 It is obtained that proposed work is better as ompare to previous as Over or Under Exposed Metri of Restoration image value of proposed work is higher as ompare to previous. So inlusion of edge feature in haze removal has inrease the performane of the work. 5. Conlusions A new ombination of laplae and edge feature is done in this work for dehazing image from different sene. The algorithm removes spatially varying haze based on the haze thikness estimation. As experiment is done on images of different environment and it is obtained that proposed work is better on all the evaluation parameters of de-hazing images. In Future improvements of the method will deal with possible orner, and histogram effets aused by the image proessing. REFERENCES [1] Z. Li, J. Zheng, and Z. Zhu, Contenet Adaptive Guided Image Filtering. In IEEE Int. Conf. Multimedia and Expo (Ime), 2014, [2] Liu, Feng, and Canmei Yang. "A Fast Method for Single Image Dehazing Using Dark Channel Prior." In Signal Proessing, Communiations And Computing (Isp), 2014 IEEE International Conferene On, Pp Ieee, [3] Alajarmeh, Ahmad, Rosalina Abdul Salam, Mohd Fadzli Marhusin, and Khairi Abdulrahim. "Real-time Video Enhanement for Various Weather Conditions Using Dark Channel and Fuzzy Logi." In Computer and Information Sienes (Ioins), 2014 International Conferene On, Pp IEEE, [4] Serikawa, Seiihi, and Huimin Lu. "Underwater Image Dehazing Using Joint Trilateral Filter." Computers & Eletrial Engineering 40.1 (2014): [5] Hitam, M. S., W. N. J. H. W. Yussof, E. A. Awalludin, and Z. Bahok. "Mixture Contrast Limited Adaptive Histogram Equalization For Underwater Image Enhanement." In Computer Appliations Tehnology (Iat), 2013 International Conferene On, Pp IEEE, [6] A.Mittal, R. Soundararajan, And A.C. Bovik, Making A Completely Blind Image Quality Analyzer, Ieee Signal Proess. Lett., Vol. 20, No.3, Pp , Mar [7] K. He, J. Sun, and X. Tang, Guided Image Filtering, Ieee Trans. Patt. Anal. Mah. Intell., Vol. 35, No. 6, Pp , [8] Zhu, Qingsong, Shuai Yang, Pheng Ann Heng, And Xuelong Li. "An Adaptive And Effetive Single Image Dehazing Algorithm Based On Dark Channel Prior." In robotis and Biomimeti (Robio), 2013 IEEE International Conferene On, Pp IEEE, P r i y a S i n g h P a t e l & P r o f. M a n i s h a R a t h o r e Page 70
A Robust Image Restoration by Using Dark channel Removal Method
Volume 6, Issue 3, Marh 2017, ISSN: 2278 1323 A Robust Image Restoration by Using Dark hannel Removal Method Ankit Jain 1 (MTeh. sholar), Prof. Mahima Jain 2 Department Of Computer Siene And Engineering,
More informationOutdoor Image Enhancement:Increasing Visibility Under Extreme Haze and Lighting Condition
Outdoor Image Enhanement:Inreasing Visibility Under Extreme Haze and Lighting Condition Deepak Kumar Naik Dept. of Eletronis & Teleommuniation C. V. Raman Polytehni Bhubaneswar, India Deepak Kumar Rout
More informationSINGLE UNDERWATER IMAGE RESTORATION BY BLUE-GREEN CHANNELS DEHAZING AND RED CHANNEL CORRECTION
SINGLE UNDERWATER IMAGE RESTORATION BY BLUE-GREEN CHANNELS DEHAZING AND RED CHANNEL CORRECTION Chongyi Li 1, Jihang Guo 1, Yanwei Pang 1, Shanji Chen, Jian Wang 1,3 1 Tianjin University, Shool of Eletroni
More informationA Dual-Threshold ATI-SAR Approach for Detecting Slow Moving Targets
A Dual-Threshold ATI-SAR Approah for Deteting Slow Moving Targets Yuhong Zhang, Ph. D., Stiefvater Consultants Abdelhak Hajjari, Ph. D. Researh Assoiates for Defense Conversion In. Kyungjung Kim, Ph. D.,
More informationEE (082) Chapter IV: Angle Modulation Lecture 21 Dr. Wajih Abu-Al-Saud
EE 70- (08) Chapter IV: Angle Modulation Leture Dr. Wajih Abu-Al-Saud Effet of Non Linearity on AM and FM signals Sometimes, the modulated signal after transmission gets distorted due to non linearities
More informationCHAPTER 3 BER EVALUATION OF IEEE COMPLIANT WSN
CHAPTER 3 EVALUATIO OF IEEE 8.5.4 COMPLIAT WS 3. OVERVIEW Appliations of Wireless Sensor etworks (WSs) require long system lifetime, and effiient energy usage ([75], [76], [7]). Moreover, appliations an
More informationConsiderations and Challenges in Real Time Locating Systems Design
Considerations and Challenges in Real Time Loating Systems Design Dr. Brian Gaffney DeaWave Ltd. Email: brian.gaffney@deawave.om Abstrat Real Time Loating Systems (RTLS) are a ombination of hardware and
More informationEFFICIENT IIR NOTCH FILTER DESIGN VIA MULTIRATE FILTERING TARGETED AT HARMONIC DISTURBANCE REJECTION
EFFICIENT IIR NOTCH FILTER DESIGN VIA MULTIRATE FILTERING TARGETED AT HARMONIC DISTURBANCE REJECTION Control Systems Tehnology group Tehnishe Universiteit Eindhoven Eindhoven, The Netherlands Dennis Bruijnen,
More informationDetecting Moving Targets in SAR Via Keystoning and Phase Interferometry
5 The MITRE Corporation. All rights reserved. Approved for Publi Release; Distribution Unlimited. Deteting Moving Targets in SAR Via Keystoning and Phase Interferometry Dr. P. K. Sanyal, Dr. D. M. Zasada,
More informationSerial PN Acquisition Using Smart Antenna and Censored Mean Level CFAR Adaptive Thresholding for a DS/CDMA Mobile Communication
01 IEEE 14th International Conferene on High Performane Computing and Communiations Serial PN Aquisition Using Smart Antenna and Censored Mean Level CFAR Adaptive Thresholding for a DS/CDMA Mobile Communiation
More informationLocation Fingerprint Positioning Based on Interval-valued Data FCM Algorithm
Available online at www.sienediret.om Physis Proedia 5 (01 ) 1939 1946 01 International Conferene on Solid State Devies and Materials Siene Loation Fingerprint Positioning Based on Interval-valued Data
More informationIMAGE RECONSTRUCTION FROM OMNI-DIRECTIONAL CAMERA Kai Guo and Zhuang Li
IMAGE RECONSTRUCTION FROM OMNI-DIRECTIONAL CAMERA Kai Guo and Zhuang Li De 15, 2007 Boston University Department of Eletrial and Computer Engineering Tehnial report No. ECE-2007-06 BOSTON UNIVERSITY IMAGE
More informationAverage Current Mode Interleaved PFC Control
Freesale Semiondutor, n. oument Number: AN557 Appliation Note ev. 0, 0/06 Average Current Mode nterleaved PFC Control heory of operation and the Control oops design By: Petr Frgal. ntrodution Power Fator
More informationEffect of orientation and size of silicon single crystal to Electro-Ultrasonic Spectroscopy
Effet of orientation and size of silion single rystal to Eletro-Ultrasoni Spetrosopy Mingu KANG 1, Byeong-Eog JUN 1, Young H. KIM 1 1 Korea Siene Aademy of KAIST, Korea Phone: +8 51 606 19, Fax: +8 51
More informationDigitally Demodulating Binary Phase Shift Keyed Data Signals
Digitally Demodulating Binary Phase Shift Keyed Signals Cornelis J. Kikkert, Craig Blakburn Eletrial and Computer Engineering James Cook University Townsville, Qld, Australia, 4811. E-mail: Keith.Kikkert@ju.edu.au,
More informationAbstract. 1. Introduction. 2. Fading
An Interative Simulation for Flat Fading P.Marihamy*, J.Senthilkumar and V.Vijayarangan ECE Dept., National Engineering College Kovilpatti -68 503, India. * Nizwa College of Tehnology, Sultanate of Oman
More informationPerceptual approach for unsupervised digital color restoration of cinematographic archives
Pereptual approah for unsupervised digital olor restoration of inematographi arhives Majed Chambah ~, Alessandro Rizzi #, Carlo Gatta #, Bernard Besserer ~, Daniele Marini * ~ L3I, Université de La Rohelle,
More information28th Seismic Research Review: Ground-Based Nuclear Explosion Monitoring Technologies
DEVELOPMENT OF SURFACE WAVE DISPERSION AND ATTENUATION MAPS AND IMPROVED METHODS FOR MEASURING SURFACE WAVES Jeffry L. Stevens, Jeffrey W. Given, G. Eli Baker and Heming Xu Siene Appliations International
More informationCo-Siting Criteria for Wind Turbine Generators and Transmitter Antennas
CONFTELE '99 ISBN 972-98115-0-4 Pro. CONFTELE 1999 - II Conf. de Teleomuniações, Sesimbra, Portugal, 466-470, Abr 1999 1 Co-Siting Criteria for Wind Turbine Generators and Transmitter Antennas Carlos Salema,
More informationMetrol. Meas. Syst., Vol. XVIII (2011), No. 2, pp METROLOGY AND MEASUREMENT SYSTEMS. Index , ISSN
METROLOGY AND MEASUREMENT SYSTEMS Index 330930, ISSN 0860-8229 www.metrology.pg.gda.pl DAC TESTING USING MODULATED SIGNALS Pavel Fexa, Josef Vedral, Jakub Svatoš CTU Prague, Faulty of Eletrial Engineering
More informationVision-based Quality Inspection for Components with Small Diameter and Deep Hole
Vision-based Quality Inspetion for Components with Small Diameter and Deep Hole Shool of Computer and Control Engineering University of Chinese Aademy of Sienes Beijing 100049, China Xinyi Gong, Hu Su,
More informationPower Budgeted Packet Scheduling for Wireless Multimedia
Power Budgeted Paket Sheduling for Wireless Multimedia Praveen Bommannavar Management Siene and Engineering Stanford University Stanford, CA 94305 USA bommanna@stanford.edu Niholas Bambos Eletrial Engineering
More informationReprint from IASTED International Conference on Signal and Image Processing (SIP 99). Nassau, Bahamas, October, 1999.
Reprint from IASTED International Conferene on Signal and Image Proessing (SIP 99). Nassau, Bahamas, Otober, 1999. 1 Filter Networks Mats Andersson Johan Wiklund Hans Knutsson Computer Vision Laboratory,
More informationReliability measure for sound source localization
Reliability measure for sound soure loalization Hyejeong Jeon 1a), Seungil im 1, Lag-Yong im 1, Hee-Youn Lee 1, and Hyunsoo Yoon 2 1 Information Tehnology Laboratory, LG Eletronis Institute of Tehnology,
More informationA Study on The Performance of Multiple-beam Antenna Satellite Receiving System Dezhi Li, Bo Zeng, Qun Wu*
16 nd International Conferene on Mehanial, Eletroni and Information Tehnology Engineering (ICMITE 16) ISBN: 978-1-6595-34-3 A Study on The Performane of Multiple-beam Antenna Satellite Reeiving System
More informationFace Recognition Using Kernel PrincipalComponent Analysis
Advanes in Vision Computing: An International Journal (AVC Vol., No., Marh 4 Fae Reognition Using Kernel PrinipalComponent Analysis Jayanthi and Dr. Ai S Assistant Professor,Department of Computer Appliations,
More information8A.6 SINGLE-SCAN RADAR REFRACTIVITY RETRIEVAL: THEORY AND SIMULATIONS
8A.6 SINGLE-SCAN RADAR REFRACTIVITY RETRIEVAL: THEORY AND SIMULATIONS B. L. Cheong 1, and R. D. Palmer 1,2 1 Atmospheri Radar Researh Center, The University of Oklahoma, Norman, U.S.A. 2 Shool of Meteorology,
More informationACTIVE VIBRATION CONTROL OF AN INTERMEDIATE MASS: VIBRATION ISOLATION IN SHIPS
ACTIVE VIBRATION CONTROL OF AN INTERMEDIATE MASS: VIBRATION ISOLATION IN SHIPS Xun Li, Ben S. Cazzolato and Colin H. Hansen Shool of Mehanial Engineering, University of Adelaide Adelaide SA 5005, Australia.
More informationTime Reversal Synthetic Aperture Radar Imaging In Multipath
Time Reversal Syntheti Aperture Radar Imaging In Multipath Yuanwei Jin, José M.F. Moura, and Niholas O Donoughue Eletrial and Computer Engineering Carnegie Mellon University Pittsburgh, PA 1513 Mihael
More informationSelection strategies for distributed beamforming optimization
EUROPEAN COOPERATION IN THE FIELD OF SCIENTIFIC AND TECHNICAL RESEARCH COST 2100 TD(10)11036 Ålborg, Denmark 2010/June/02-04 EURO-COST SOURCE: Institute of Communiation Networks and Computer Engineering
More informationInterference mitigation by distributed beam forming optimization
English Interferene mitigation by distributed beam forming optimization Matthias Kashub, Christian M. Blankenhorn, Christian M. Mueller and Thomas Werthmann Abstrat Inter-ell interferene is a major issue
More informationDemonstration of Measurement Derived Model-Based Adaptive Wide-Area Damping Controller on Hardware Testbed USA. China USA
2, rue d Artois, F-758 PARIS CIGRE US National Committee http : //www.igre.org 25 Grid of the Future Symposium Demonstration of Measurement Derived Model-Based Adaptive Wide-Area Damping Controller on
More informationDESIGN AND PERFORMANCE ANALYSIS OF BAND PASS IIR FILTER FOR SONAR APPLICATION
International Journal of Emerging Tehnologies and Engineering (IJETE) ISSN: 238 8 ICRTIET-21 Conferene Proeeding, 3 th -31 st August 21 11 DESIGN AND PERFORMANCE ANALYSIS OF BAND PASS IIR FILTER FOR SONAR
More informationThis document is downloaded from DR-NTU, Nanyang Technological University Library, Singapore.
This doument is downloaded from DR-NTU Nanyang Tehnologial University Library Singapore. Title Primary-Ambient Extration Using Ambient Spetrum Estimation for Immersive Spatial Audio Reprodution Author(s)
More informationStudy on the Effect of Object to Camera Distance on Polynomial Expansion Coefficients in Barrel Distortion Correction
Study on the Effet of Objet to Camera Distane on Polynomial Expansion Coeffiients in Barrel Distortion Corretion H. Tian, T. Srikanthan, K. Vijayan Asari, S. K. Lam Center for High Performane Embedded
More informationMicro-Piezoelectric Head Technology of Color Inkjet Printer
DPP2: International Conferene on Digital Prodution Printing and Industrial Appliations Miro-Piezoeletri Head Tehnology of Color Inkjet Printer Takao Mimura & Shinri Sakai SEIKO EPSON Corporation Shiojiri-shi,
More informationObjectives. Presentation Outline. Digital Modulation Lecture 04
Digital Modulation Leture 04 Filters Digital Modulation Tehniques Rihard Harris Objetives To be able to disuss the purpose of filtering and determine the properties of well known filters. You will be able
More informationPerformance of Random Contention PRMA: A Protocol for Fixed Wireless Access
Int. J. Communiations, Network and System Sienes, 2011, 4, 417-423 doi:10.4236/ijns.2011.47049 Published Online July 2011 (http://www.sirp.org/journal/ijns) Performane of Random Contention PRMA: A Protool
More informationDesign Modification of Rogowski Coil for Current Measurement in Low Frequency
Design Modifiation of Rogowski Coil for Current Measurement in Low Frequeny M. Rezaee* and H. Heydari* Abstrat: The priniple objet of this paper is to offer a modified design of Rogowski oil based on its
More informationPerformance Study on Multimedia Fingerprinting Employing Traceability Codes
Performane Study on Multimedia Fingerprinting Employing Traeability Codes Shan He and Min Wu University of Maryland, College Park, U.S.A. Abstrat. Digital fingerprinting is a tool to protet multimedia
More informationDetection of LSB Matching Steganography using the Envelope of Histogram
646 JOURNAL OF COMPUTERS, VOL. 4, NO. 7, JULY 29 Detetion of LSB Mathing Steganography using the Envelope of Histogram Jun Zhang Shool of Information Siene Guangdong University of Business Studies,Guangzhou,P.R.
More informationNegative to Positive CFS-244 April 19, 2004
egative to ositive CFS-244 April 19, 2004 www.-f-systems.om ersonal ote This report has a lot of algebra and basi physis of photography in it, but it is not "roket siene." evertheless, it is quite triky
More informationNumerical modeling of DPSK pressure signals and their transmission characteristics in mud channels
66 Pet.Si.(9)6:66-7 DOI.7/s8-9-4-8 Numerial modeling of DPSK pressure signals and their transmission harateristis in mud hannels Shen Yue, Su Yinao, Li Gensheng 3, Li Lin and Tian Shoueng 3 College of
More informationEffect of Pulse Shaping on Autocorrelation Function of Barker and Frank Phase Codes
Columbia International Publishing Journal of Advaned Eletrial and Computer Engineering Researh Artile Effet of Pulse Shaping on Autoorrelation Funtion of Barker and Frank Phase Codes Praveen Ranganath
More informationCharacterization of the dielectric properties of various fiberglass/epoxy composite layups
Charaterization of the dieletri properties of various fiberglass/epoxy omposite layups Marotte, Laurissa (University of Kansas); Arnold, Emily Center for Remote Sensing of Ie Sheets, University of Kansas
More informationAn Ontology-based Validation Approach to Resolve Conflicts in Manufacturing Design Process
An Ontology-based Validation Approah to Resolve Conflits in Manufaturing Design Proess Kazunari Hashimoto, Motoyuki Takaai, Yohei Yamane, Seiji Suzuki, Masao Watanabe, and Hiroshi Umemoto Researh and Tehnology
More informationCOHERENT PHASE COMPENSATION METHOD BASED ON DIRECT IF SAMPLING IN WIDEBAND RADAR
Progress In Eletromagnetis Researh, Vol. 136, 753 764, 2013 COHERENT PHASE COMPENSATION METHOD BASED ON DIRECT IF SAMPLING IN WIDEBAND RADAR Qianqiang Lin, Zengping Chen *, Yue Zhang, and Jianzhi Lin Automati
More informationInternational Journal of Advance Engineering and Research Development ANALYSIS AND DETECTION OF OIL SPILL IN OCEAN USING ASAR IMAGES
Sientifi Journal of Impat Fator (SJIF): 5.7 International Journal of Advane Engineering and Researh Development Volume 5, Issue 02, February -208 e-issn (O): 2348-4470 p-issn (P): 2348-6406 ANALYSIS AND
More informationNested Codes with Multiple Interpretations
Nested Codes with Multiple Interpretations Lei Xiao, Thomas E. Fuja, Jörg Kliewer, Daniel J. Costello, Jr. Department of Eletrial Engineering University of Notre Dame, Notre Dame, IN 46556, US Email: {lxiao,
More informationDESIGN AND CHARACTERIZATION OF UNIFORM FIELD EDDY CURRENT PROBES*
DESIGN AND CHARACTERIZATION OF UNIFORM FIELD EDDY CURRENT PROBES* INTRODUCTION P. J. Shull, 1 T. E. Capobiano, 2 and J. C. Moulder1 1Frature and Deformation Division 2Eletromagneti Tehnology Division National
More informationPrediction Method for Channel Quality Indicator in LEO mobile Satellite Communications
Predition Method for Channel Quality Indiator in LEO mobile Satellite Communiations Yadan Zheng *, Mingke Dong *, Wei Zheng *, Ye Jin *, Jianjun Wu * * Institution of Advaned Communiations, Peking University,
More informationAdvanced PID Controller Synthesis using Multiscale Control Scheme
Advaned PID Controller Synthesis using Multisale Control Sheme Bejay Ugon a,*, Jobrun Nandong a, and Zhuquan Zang b a Department of Chemial Engineering, Curtin University, 989 Miri, Sarawak, Malaysia b
More information2011 IEEE. Reprinted, with permission, from David Dorrell, Design and comparison of 11 kv multilevel voltage source converters for local grid based
2 IEEE. Reprinted, with permission, from David Dorrell, Design and omparison of k multilevel voltage soure onverters for loal grid based renewable energy systems. IECON 2-37th Annual Conferene on IEEE
More informationA 24 GHz Band FM-CW Radar System for Detecting Closed Multiple Targets with Small Displacement
A 24 GHz Band FM-CW Radar System for Deteting Closed Multiple Targets with Small Displaement Kazuhiro Yamaguhi, Mitsumasa Saito, Takuya Akiyama, Tomohiro Kobayashi and Hideaki Matsue Tokyo University of
More informationRADAR TARGET RECOGNITION BASED ON PARAMETERIZED HIGH RESOLUTION RANGE PROFILES
RADAR TARGET RECOGNITION BASED ON PARAMETERIZED HIGH RESOLUTION RANGE PROFILES XUEJUN LIAO and ZHENG BAO Key Lab. For Radar Signal Proessing Xidian University, Xi an 710071, P. R. China E-mail : xjliao@rsp.xidian.edu.n
More informationThe Implement of Hydraulic Control System for Large- Scale Railway Maintenance Equipment Based on PLC
Sensors & Transduers 2014 by IFSA Publishing, S. L. http://www.sensorsportal.om The Implement of Hydrauli Control System for Large- Sale Railway Maintenane Equipment Based on PLC Junfu YU, * Hairui WANG
More informationPortable Marx Generator for Microplasma Applications
J. Plasma Fusion Res. SERIES, Vol. 8 (2009) Portable Marx Generator for Miroplasma Appliations T. UENO*, T. SAKUGAWA**, M. AKIYAMA**, T. NAMIHIRA**, S. KATSUKI** and H. AKIYAMA** *Department of Eletrial
More informationFully Joint Diversity Combining, Adaptive Modulation, and Power Control
Fully Joint Diversity Combining, Adaptive Modulation, and Power Control Zied Bouida, Khalid A. Qaraqe, and Mohamed-Slim Alouini Dept. of Eletrial and Computer Eng. Texas A&M University at Qatar Eduation
More informationA Zero-Error Source Coding Solution to the Russian Cards Problem
A Zero-Error Soure Coding Solution to the Russian Cards Problem ESTEBAN LANDERRECHE Institute of Logi, Language and Computation January 24, 2017 Abstrat In the Russian Cards problem, Alie wants to ommuniate
More informationA New Broadband Microstrip-to-SIW Transition Using Parallel HMSIW
JOURNAL OF ELECTROMAGNETIC ENGINEERING AND SCIENCE, VOL. 12, NO. 2, 171~175, JUN. 2012 http://dx.doi.org/10.5515/jkiees.2012.12.2.171 ISSN 2234-8395 (Online) ISSN 2234-8409 (Print) A New Broadband Mirostrip-to-
More informationJournal of Communications Vol. 12, No. 7, July 2017
Journal of ommuniations Vol., o. 7, July 7 Performane Analysis of FSO ommuniation Systems with Higher-Order Spatial Diversity Shemes Using BPSK- S over Log-ormal Atmospheri urbulene hannels Okikiade A.
More informationJournal of Communications Vol. 12, No. 6, June 2017
Journal of ommuniations Vol., o. 6, June 7 Performane Analysis of FSO ommuniation Systems with Higher-Order Spatial Diversity Shemes Using BPSK- S over Log-ormal Atmospheri urbulene hannels Okikiade A.
More informationAn Adaptive Distance-Based Location Update Algorithm for PCS Networks
An Adaptive Distane-Based Loation Update Algorithm for PCS Networks Abstrat - In this paper, we propose a stohasti model to ompute the optimal update boundary for the distane-based loation update algorithm.
More informationApplication of TEM horn antenna in radiating NEMP simulator
Journal of Physis: Conferene Series Appliation of TEM horn antenna in radiating NEMP simulator To ite this artile: Yun Wang et al 013 J. Phys.: Conf. Ser. 418 010 View the artile online for updates and
More informationFinite-States Model Predictive Control with Increased Prediction Horizon for a 7-Level Cascade H-Bridge Multilevel STATCOM
Proeedings of The 2th World Multi-Conferene on Systemis, Cybernetis and Informatis (WMSCI 216) Finite-States Model Preditive Control with Inreased Predition Horizon for a 7-Level Casade H-Bridge Multilevel
More informationProton Damage in LEDs with Wavelengths Above the Silicon Wavelength Cutoff
Proton Damage in EDs with Wavelengths Above the Silion Wavelength Cutoff Heidi N. Beker and Allan H. Johnston Jet Propulsion aboratory California Institute of Tehnology Pasadena, Califomia Abstrat Proton
More informationPhotovoltaic Based Dynamic Voltage Restorer with Outage Handling Capability Using PI Controller
Available online at www.sienediret.om Energy Proedia 12 (2011) 560 569 ICSGCE 2011: 27 30 September 2011, Chengdu, China Photovoltai Based Dynami Voltage Restorer with Outage Handling Capability Using
More informationCount-loss mechanism of self-quenching streamer (SQS) tubes
Nulear Instruments and Methods in Physis Researh A 342 (1994) 538-543 North-Holland NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH Setion A Count-loss mehanism of self-quenhing streamer (SQS) tubes
More informationDSP First Lab 05: FM Synthesis for Musical Instruments - Bells and Clarinets
DSP First Lab 05: FM Synthesis for Musial Instruments - Bells and Clarinets Pre-Lab and Warm-Up: You should read at least the Pre-Lab and Warm-up setions of this lab assignment and go over all exerises
More informationA comparison of scheduling algorithms in HSDPA
A omparison of sheduling algorithms in HSDPA Stefan M. Sriba and Fambirai Takawira Shool of Eletrial, Eletroni and Computer Engineering, University of KwaZulu-Natal King George V Avenue, Durban, 404, South
More informationFOG REMOVAL ALGORITHM USING ANISOTROPIC DIFFUSION AND HISTOGRAM STRETCHING
FOG REMOVAL ALGORITHM USING DIFFUSION AND HISTOGRAM STRETCHING 1 G SAILAJA, 2 M SREEDHAR 1 PG STUDENT, 2 LECTURER 1 DEPARTMENT OF ECE 1 JNTU COLLEGE OF ENGINEERING (Autonomous), ANANTHAPURAMU-5152, ANDRAPRADESH,
More informationHierarchical Extreme-Voltage Stress Test of Analog CMOS ICs for Gate-Oxide Reliability Enhancement*
Hierarhial Extreme-Voltage Stress Test of Analog MOS Is for Gate-Oxide Reliability Enhanement* hin-long Wey Department of Eletrial Engineering National entral University hung-li, Taiwan lway@ee.nu.edu.tw
More informationError Analysis of Sound Source Localization System for Small Microphone Based on Time Delay Estimation Shang-Yue ZHANG
017 3rd International onferene on omputer Siene and Mehanial utomation (SM 017) ISN: 978-1-60595-506-3 Error nalysis of Sound Soure Loalization System for Small Mirophone ased on Time elay Estimation Shang-Yue
More informationAn Acquisition Method Using a Code-Orthogonalizing Filter in UWB-IR Multiple Access
6 IEEE Ninth International Symposium on Spread Spetrum Tehniques and Appliations An Aquisition Method Using a Code-Orthogonalizing Filter in UWB-IR Multiple Aess Shin ihi TACHIKAWA Nagaoka University of
More informationA High Frequency Battery Model for Current Ripple Analysis
A High Frequeny Battery Model for Current Ripple Analysis Jin Wang* Ke Zou Departent of Eletrial and Coputer Engineering The Ohio State University Colubus, OH, USA *Wang@ee.osu.edu Chinghi Chen* Lihua
More informationDigital Image Analysis and Enhancement
Digital Image Analysis and Enhanement S. Battiato, G. DiBlasi, G. Gallo, A. LoGiuoo, M. Madonia, S. Niotra, F. Stano DIPATIMENTO DI MATEMATICA ED INFOMATICA UNIVESITA DI CATANIA {battiato, gdiblasi, gallo,
More informationSonar 21. Sonar Sensing
Sonar 21. Sonar Sensing 1 Sonar or ultrasoni sensing uses propagation of aousti energy at higher frequenies than normal hearing to extrat information from the environment. This hapter presents the fundamentals
More informationIEEE TRANSACTIONS ON ELECTRON DEVICES, VOL. 51, NO. 2, FEBRUARY
IEEE TRANSACTIONS ON ELECTRON DEVICES, VOL. 51, NO. 2, FEBRUARY 2004 195 A Global Interonnet Optimization Sheme for Nanometer Sale VLSI With Impliations for Lateny, Bandwidth, and Power Dissipation Man
More informationAuditory Processing of Speech: The COG Effect. Student Researcher: Daniel E. Hack. Advisor: Dr. Ashok Krishnamurthy
Auditory Proessing of Speeh: The COG Effet Student Researher: Daniel E. Hak Advisor: Dr. Ashok Krishnamurthy The Ohio State University Department of Eletrial and Computer Engineering Abstrat The COG effet
More informationANALYSIS OF THE IONOSPHERIC INFLUENCE ON SIGNAL PROPAGATION AND TRACKING OF BINARY OFFSET CARRIER (BOC) SIGNALS FOR GALILEO AND GPS
ANALYSIS OF THE IONOSPHERIC INFLUENCE ON SIGNAL PROPAGATION AND TRACKING OF BINARY OFFSET CARRIER (BOC) SIGNALS FOR GALILEO AND GPS Thomas Pany (1), Bernd Eissfeller (2), Jón Winkel (3) (1) University
More informationParameters of the radio channels that affect digital signal transmissions Propagation Environment Attenuation Index, γ
Parameters of the radio hannels that affet digital signal transmissions 1.Free spae attenuation - the signal undergoes an average attenuation that depends on the length of the path and signal s frequeny
More informationLimitations and Capabilities of the Slanted Spectrogram Analysis Tool for SAR-Based Detection of Multiple Vibrating Targets
Limitations and Capabilities of the Slanted Spetrogram Analysis Tool for SAR-Based Detetion of Multiple Vibrating Targets Adebello Jelili, Balu Santhanam, and Majeed Hayat Department of Eletrial and Computer
More informationA Revised Underwater Image Formation Model
A Revised Underwater Image Formation Model erya Akkaynak Tali Treibitz University of Haifa derya.akkaynak@gmail.om, ttreibitz@univ.haifa.a.il Abstrat The urrent underwater image formation model desends
More informationLink-Level Analysis of Downlink Handover Regions in UMTS
Link-Level Analysis of Downlink Handover Regions in UMTS Atta Ul Quddus, Xinjie Yang and Rahim Tafazolli, Member, IEEE Abstrat This paper investigates the downlink handover (soft/softer/hard) performane
More informationImplementation of a Mobile Device Controlled Multi-behavior Interactive Mobile Robot Over MR Technology
Fifth International Workshop on Computational Intelligene & Appliations IEEE SMC Hiroshima Chapter, Hiroshima University, Japan, November 1, 11 & 12, 29 Implementation of a Mobile Devie Controlled Multi-behavior
More informationThe Impact of Solar Storms on Protective Relays for Saturable-Core Transformers
The Impat of Solar Storms on Protetive Relays for Saturable-Core Transformers Rui Fan, Student Member, IEEE, Yu Liu, Student Member, IEEE, Aniemi Umana, Member, IEEE, Zhenyu Tan, Student Member, IEEE,
More informationRF Source Seeking using Frequency Measurements
RF Soure Seeking using Frequeny Measurements Muhammed Faruk Genel, Upamanyu Madhow, João Pedro Hespanha Department of Eletrial and Computer Engineering University of California Santa Barbara Santa Barbara,
More informationSolar Storms Impact on High-Voltage Saturable-Core Transformers and Mitigation Methods
Solar Storms Impat on High-Voltage Saturable-Core Transformers and Mitigation Methods Rui Fan 1, Student Member, IEEE, Yu Liu 1, Student Member, IEEE, Zhenyu Tan 1, Student Member, IEEE, Liangyi Sun 1,
More informationVoltage Scalable Switched Capacitor DC-DC Converter for Ultra-Low-Power On-Chip Applications
Voltage Salable Swithed Capaitor DC-DC Converter for Ultra-ow-Power On-Chip Appliations Yogesh K. amadass and Anantha P. Chandrakasan Mirosystems Tehnology aboratory Massahusetts Institute of Tehnology
More informationKey-Words: - Software defined radio, Walsh Hadamard codes, Lattice filter, Matched filter, Autoregressive model, Gauss-Markov process.
G Suhitra, M L Valarmathi A Novel method of Walsh-Hadamard Code Generation using Reonfigurable Lattie filter and its appliation in DS-CDMA system GSUCHITRA, MLVALARMATHI Department of ECE, Department of
More informationHorn Antenna Generating Electromagnetic Field with Orbital Angular Momentum
Progress In Eletromagnetis Researh M, Vol. 60, 57 65, 2017 Horn Antenna Generating Eletromagneti Field with Orbital Angular Momentum Min Huang *, Xianzheng Zong, and Zaiping Nie Abstrat A novel method
More informationImplementation of Direct Synthesis and Dahlin Control Algorithms on Data Driven Models of Heater System
Implementation of Diret Synthesis and Dahlin Control Algorithms on Data Driven Models of Heater System Mr. R. G. Datar Sanjay Ghodawat Group of Institutes, Atigre Mr. A. N. Shinde Sanjay Ghodawat Group
More informationStudy of the Variance in the Histogram Test of ADCs
Study of the Variane in the Histogram Test of ADCs F. Corrêa Alegria and A. Cruz Serra Teleommuniations Institute and Department of Eletrial and Computer Engineering Instituto Superior Ténio, Tehnial University
More informationNew Approach in Gate-Level Glitch Modelling *
New Approah in Gate-Level Glith Modelling * Dirk Rae Wolfgang Neel Carl von Ossietzky University Oldenurg OFFIS FB 1 Department of Computer Siene Esherweg 2 D-26111 Oldenurg, Germany D-26121 Oldenurg,
More informationIEEE PHOTONICS TECHNOLOGY LETTERS 1
PHOTONICS TECHNOLOGY LETTERS 1 Simultaneous Dual-Band Wavelength-Swept Fiber Laser Based on Ative Mode Loking Hwi Don Lee, Zhongping Chen, Myung Yung Jeong, and Chang-Seok Kim 1 2 3 4 5 6 7 8 9 10 11 12
More informationResilience. Being resilient on the other hand, helps a person in many different ways. Such a person:
Resiliene What is Resiliene? Often, people have a wrong idea of what resiliene is. They think resiliene means that you re unaffeted by the problems of life or you go through life always with a smile on
More informationRemoval of Haze in Color Images using Histogram, Mean, and Threshold Values (HMTV)
IJSTE - International Journal of Science Technology & Engineering Volume 3 Issue 03 September 2016 ISSN (online): 2349-784X Removal of Haze in Color Images using Histogram, Mean, and Threshold Values (HMTV)
More informationOptimization of Energy Detector Receivers for UWB Systems
) Optimization of Energy Detetor Reeivers for UWB Systems Mustafa E Şahin, İsmail Güvenç, and Hüseyin Arslan Eletrial Engineering Department, University of South Florida 4202 E Fowler Avenue, ENB-118,
More informationRF Link Budget Calculator Manual
RF Link Budget Calulator Manual Author Ivo van Ling for www.vanling.net Software Release RF Link Distane Calulator, Version 1.00, Dated 4 January 2010 Manual Version 1.00 Date 19-01-2010 Page: 1(8) Contents
More informationLecture 22: Digital Transmission Fundamentals
EE 400: Communiation Networks (0) Ref: A. Leon Garia and I. Widjaja, Communiation Networks, 2 nd Ed. MGraw Hill, 2006 Latest update of this leture was on 30 200 Leture 22: Digital Transmission Fundamentals
More information