Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Error Resilience in Current Distributed Video Coding Architectures | Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2009 Article ID 946585 18 pages doi 2009 946585 Research Article Error Resilience in Current Distributed Video Coding Architectures Claudia Tonoli Pierangelo Migliorati and Riccardo Leonardi Signalsand Communications Laboratory Department of Electronics for Automation University of Brescia ViaBranze 38 25123 Brescia Italy Correspondence should be addressed to Pierangelo Migliorati Received 19 May 2008 Revised 17 October 2008 Accepted 15 January 2009 Recommended by Frederic Dufaux In distributed video coding the signal prediction is shifted at the decoder side giving therefore most of the computational complexity burden at the receiver. Moreover since no prediction loop exists before transmission an intrinsic robustness to transmission errors has been claimed. This work evaluates and compares the error resilience performance of two distributed video coding architectures. In particular we have considered a video codec based on the Stanford architecture DISCOVER codec and a video codec based on the PRISM architecture. Specifically an accurate temporal and rate distortion based evaluation of the effects of the transmission errors for both the considered DVC architectures has been performed and discussed. These approaches have been also compared with AVC in both cases of no error protection and simple FEC error protection. Our evaluations have highlighted in all cases a strong dependence of the behavior of the various codecs to the content of the considered video sequence. In particular PRISM seems to be particularly well suited for low-motion sequences whereas DISCOVER provides better performance in the other cases. Copyright 2009 Claudia Tonoli et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original .
