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Iterative Methods for Image Restoration [chapter]

Sebastian Berisha, James G. Nagy
2014 Academic Press Library in Signal Processing: Volume 4 - Image, Video Processing and Analysis, Hardware, Audio, Acoustic and Speech Processing  
This chapter describes a variety of iterative methods used in image restoration, with a particular emphasis on efficiency, convergence behavior, and implementation.  ...  boundary conditions, and they can more easily incorporate additional constraints, such as nonnegativity.  ...  Nagy is supported by the United States National Science Foundation (NSF) under grant DMS-0811031, and by the United States Air Force Office of Scientific Research (AFOSR) under grant FA9550-09-1-0487.  ... 
doi:10.1016/b978-0-12-396501-1.00007-8 fatcat:fnxvzduvk5fkdd6ox4xk3javam

Distributed Estimation [chapter]

Yuzhe Xu, Vijay Gupta, Carlo Fischione
2014 Academic Press Library in Signal Processing: Volume 4 - Image, Video Processing and Analysis, Hardware, Audio, Acoustic and Speech Processing  
The limited bandwidth, communication range and message loss in the communication are considered.  ...  A phenomenon being observed by a number of sensors in networks having a star and a general topology are considered.  ...  Conclusion This chapter introduced basic notions of distributed estimation theory, and some implications for the applications with and without considering the limitations in the networks.  ... 
doi:10.1016/b978-0-12-396501-1.00025-x fatcat:ltqlwyalqbe45mvoe4o25qqvh4

Depth map up-sampling using cost-volume filtering

Ji-Ho Cho, Satoshi Ikehata, Hyunjin Yoo, Margrit Gelautz, Kiyoharu Aizawa
2013 IVMSP 2013  
Assuming that a registered high-resolution texture image is available, the cost-volume filtering framework is applied to this problem.  ...  Our experiments show that cost-volume filtering can generate the high-resolution depth map accurately and efficiently while preserving discontinuous object boundaries, which is often a challenge when various  ...  INTRODUCTION Depth map acquisition is an active research area in image processing and computer vision.  ... 
doi:10.1109/ivmspw.2013.6611912 dblp:conf/ivmsp/ChoIYGA13 fatcat:lq5pctpwefbfhisp2shwzvul5u

Monitoring of blood pulsation using non-contact technique [chapter]

R. Erts, U. Rubins, J. Spigulis
2009 International Federation for Medical and Biological Engineering Proceedings  
Time resolved detection and analysis of the skin back-scattered optical signals (reflection photoplethysmography or contact PPG) provide rich information on skin blood volume pulsations and can serve for  ...  This feasibility study shows potential for non-contact 2D imaging reflection-mode photoplethysmography; however, this requires further studies.  ...  Fingertip image (left) and PPG image (right). Fig. 3 3 Acquired PPG signals using a) 423 nm, b) 520 nm, c) 620 nm.Fig 4 shows one frame of the recorded video from the body at Sun light.  ... 
doi:10.1007/978-3-642-03885-3_209 fatcat:wmtc4zo775esvo3rypug6j47je

Validating cardiac echo diagnosis through video similarity

Tanveer Syeda-Mahmood, Dulce Ponceleon, Jing Yang
2005 Proceedings of the 13th annual ACM international conference on Multimedia - MULTIMEDIA '05  
Eng., Shahid Beheshti Univ., Tehran. " A fast indexing and retrieval method for image databases". Systems, Signals and Image Processing, 2008.  ...  "A Fast Symbolic Image Indexing and Retrieval Method Based on TSR and Linear Hashing". Signal Processing and Information Technology, 2008. ISSPIT 2008.  ... 
doi:10.1145/1101149.1101268 dblp:conf/mm/Syeda-MahmoodPY05 fatcat:4mfpf3k4s5a7dn7ip72jjq23gy

Spectral domain optical coherence tomography of multi-MHz A-scan rates at 1310 nm range and real-time 4D-display up to 41 volumes/second

Dong-hak Choi, Hideaki Hiro-Oka, Kimiya Shimizu, Kohji Ohbayashi
2012 Biomedical Optics Express  
An ultrafast frequency domain optical coherence tomography system was developed at A-scan rates between 2.5 and 10 MHz, a B-scan rate of 4 or 8 kHz, and volume-rates between 12 and 41 volumes/second.  ...  Using FPGAs for FFT and a GPU for volume rendering, a real-time 4D display was demonstrated at a rate up to 41 volumes/second for an image size of 256 (axial) × 128 × 128 (lateral) voxels.  ...  Acknowledgments This work was supported by the Japan Science and Technology Agency (JST) "Development of Systems and Technology for Advanced Measurement and Analysis" program.  ... 
doi:10.1364/boe.3.003067 pmid:23243560 pmcid:PMC3521307 fatcat:l7hz5h75kzcxpck3xviknf5u5y

Comparison Of Digital Subtraction Video Densitometry And Area Length Method In The Determination Of Left Ventricular Ejection Fraction

O. Nalcioglu, J. A. Seibert, W. W. Roeck, W. L. Henry, J. M. Tobis, W. D. Johnston, William R. Brody
1981 Digital Radiography  
The mask mode subtracted video images obtained after a peripheral intravenous injection eScholarship provides open access, scholarly publishing services to the University of California and delivers a dynamic  ...  The mask mode subtracted video images obtained after a peripheral intravenous injection of a bolus of Renografin 76 are used in the derivation of a densitytime curve.  ...  Johnson and E. Rule of Siemens Corporation for useful discussions and technical assistance.  ... 
doi:10.1117/12.933061 fatcat:uqyg3oxqyfdwda2lfsedxw3bxy

Video Coding: Part II of Fundamentals of Source and Video Coding

Thomas Wiegand, Heiko Schwarz
2016 Foundations and Trends® in Signal Processing  
and Trends R in Signal Processing, 2016, Volume 10, 4 issues.  ...  In Proc. of International Conference on Acoustics, Speech, and Signal Processing (ICASSP), volume 4, pages 2096-2099, 1996. [30] M. C. Chen and A. N. Willson, Jr.  ... 
doi:10.1561/2000000078 fatcat:uyiw5urov5hcvocxnp27pwxnf4

Photoplethysmographic imaging of high spatial resolution

Alexei A. Kamshilin, Serguei Miridonov, Victor Teplov, Riku Saarenheimo, Ervin Nippolainen
2011 Biomedical Optics Express  
We present a new method of formation photoplethysmographic images with high spatial resolution from video recordings of a living body in the reflection geometry.  ...  The method (patent pending) is based on lock-in amplification of every pixel of the recorded video frames.  ...  ., Finland) and Prof. Rashid Giniatullin (the University of Eastern Finland) for the useful discussion of the obtained results.  ... 
doi:10.1364/boe.2.000996 pmid:21483621 pmcid:PMC3072138 fatcat:nm4leaiu5zf7np3csbwu3yx6au


A. Lekakh, I. Cheremskoy
2013 Science-based technologies  
Built method for estimating the time spent on processing and transmission of the video stream.  ...  The paper analyzes the main characteristics of the efficiency of methods for processing video, which influence the evaluation time costs in the processing and transmission of the video stream.  ...  One of the most efficient video compression technologies are considered in [4; 5] that reduce the volume of video streams in terms of the technical implementation of the permissible treatment processes  ... 
doi:10.18372/2310-5461.18.4932 fatcat:g3ptk2i7fbejnkjisag7nqbszm

Multicolor two-photon tissue imaging by wavelength mixing

Pierre Mahou, Maxwell Zimmerley, Karine Loulier, Katherine S Matho, Guillaume Labroille, Xavier Morin, Willy Supatto, Jean Livet, Delphine Débarre, Emmanuel Beaurepaire
2012 Nature Methods  
We report volume and live multicolor imaging of 'brainbow'-labeled tissues as well as simultaneous three-color fluorescence and thirdharmonic imaging of fly embryos.  ...  tool for volume and live-tissue studies 3 .  ...  For live imaging experiments, chicken embryos electroporated at E2 as described in ref. 26 were harvested at E3 (Fig. 3a and Supplementary Video 4) or E4 (Fig. 3b,c and Supplementary Video 5 and 6  ... 
doi:10.1038/nmeth.2098 pmid:22772730 fatcat:b4lrkipk2zf6hmsekvhc4sxw4u

Hologlyphics: volumetric image synthesis performance system

Walter Funk, Andrew J. Woods, Nicolas S. Holliman, John O. Merritt
2008 Stereoscopic Displays and Applications XIX  
Different images can be sent to up to 4 separate displays. The system applies many novel volumetric special effects, and extends several film and video special effects into the volumetric realm.  ...  art form unique to volumetric and autostereoscopic images.  ...  Video wipes are a process of graphically combining two video signals.  ... 
doi:10.1117/12.766729 fatcat:ut5w7h3nzrfzti2ib7adbeedzq

Improvement of neuronavigation based on ultrasound by means of the digital video interface

A Müns, S Arnold, A Schmitgen, C Chalopin, F Arlt, J Meixensberger, D Lindner
2012 Biomedical Engineering  
Digital transmission of the video signal via DVI from the ultrasound device was compared to analogue transmission via S-Video by a phantom as well as in the operating room.  ...  The digital transmission via DVI resulted in a higher image quality, improved image sharpness and a higher accuracy in the representation of boundaries.  ...  As well the digital signal can be transferred without any loss of quality in comparison to the analog video signal which is more prone to signal loss over distance and other interferences.  ... 
doi:10.1515/bmt-2012-4036 fatcat:z4xbb3niivblzmz6aao3uzb3du

Multipoint Measuring System for Video and Sound - 100-camera and microphone system

Toshiaki Fujii, Kensaku Mori, Kazuya Takeda, Kenji Mase, Masayuki Tanimoto, Yasuhito Suenaga
2006 2006 IEEE International Conference on Multimedia and Expo  
Using this system, we are planning to conduct projects to measure humans and their activities, collect a large volume of real-world data of video and sound, and release them to the public.  ...  We developed a novel multipoint measurement system capable of acquiring video and sound at more than 100 points in a "synchronized" manner.  ...  Our future plans include gathering large volumes of real-world data on video and sound, and releasing them to the public.  ... 
doi:10.1109/icme.2006.262566 dblp:conf/icmcs/FujiiMTMTS06 fatcat:z35wdmvcqba5dkcmp6csgvmioy

3-D illustration of network orientations of interstitial cells of Cajal subgroups in human colon as revealed by deep-tissue imaging with optical clearing

Yuan-An Liu, Yuan-Chiang Chung, Shien-Tung Pan, Yung-Chi Hou, Shih-Jung Peng, Pankaj J. Pasricha, Shiue-Cheng Tang
2012 American Journal of Physiology - Gastrointestinal and Liver Physiology  
C-kit and nuclear fluorescent staining were used to identify the ICC processes and cell body.  ...  and organized ICC-CM layers running parallel to the circular muscle axis and extending toward the submucosa, and 4) a condensed ICC-SM layer lining the submucosal border.  ...  To visualize a single layer of ICC-CM, we employed image segmentation to extract the c-kit signals and traced their paths across the scanned volume ( Fig. 5 and Supplemental Video 7).  ... 
doi:10.1152/ajpgi.00432.2011 pmid:22421617 pmcid:PMC3362097 fatcat:mdqohniyijh7dnozqzpqxwid7m
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