Paper Info
Title
Redundant representation for network video streaming using reconstructed P-frames and SP-frames
Abstract
For low-delay streaming of pre-encoded video over lossy networks, fast recovery from decoding errors typically involves use of frequent intra-coded frames, which incurs high bandwidth cost. In this paper, we present a redundant representation of video using a bandwidth-efficient but non-resilient main bitstream, and an additional auxiliary bitstream dedicated to recovery from losses in the main bitstream. In particular, we insert primary SP-frames periodically into the main bitstream, and encode corresponding secondary SP-frames and reconstructed P-frames in the auxiliary stream. When a frame loss occurs, a reconstructed P-frame is first sent to re-synchronize decoder back to normal motion compensation loop, then a secondary SP-frame corresponding to the location of the next pre-inserted primary SP-frame in the main stream is sent thereafter, eliminating coding drift. Results show that proposed method out-performs non-redundant representation of I-frame insertion by up to 11 frames in recovery time, and out-performed redundant representation of only reconstructed P-frames by up to 2.2dB in average PSNR.
Year
DOI
Venue
2010
10.1109/ICASSP.2010.5496025
ICASSP
Keywords
Field
DocType
motion compensation,video streaming,low delay preencoded video streaming,cryptography,p-frame,sp-frame,auxiliary bitstream,sp-frames,i-frame,redundant video representation,delays,redundant representation,video coding,intracoded frame,video communication,network video streaming,decoding,psnr,probability,markov processes,bandwidth,informatics,encoding
Computer vision,Lossy compression,Computer science,Bitstream format,Motion compensation,Bandwidth (signal processing),Artificial intelligence,Decoding methods,Bitstream,Scalable Video Coding,Encoding (memory)
Conference
ISSN
ISBN
Citations 
1520-6149 E-ISBN : 978-1-4244-4296-6
978-1-4244-4296-6
1
PageRank 
References 
Authors
0.36
6
2
Name
Order
Citations
PageRank
Gene Cheung Connie Chan11387121.82
Wai-tian Tan267278.92