Title
Bitplane Based Wyner-Ziv Coding Using Unequal Error Protection
Abstract
In this paper, we discuss a novel approach to Distributed Video Coding (DVC) using bitplane based unequal error protection. Distributed video coding (DVC) has recently attracted a vast amount of attention from the video coding community all around the world, since it could prove very well suited for some applications where low-complexity encoders are a must. The primary feature of DVC is its modified complexity balance in the encoder and decoder, in contrast to its traditional competitors.When considering each pixel of the frame, out of the 8 bits it constitutes, each bit position has a different significance decreasing gradually from the MSB to the LSB. Therefore a scheme which protects the initial bitplanes better would undoubtedly be desirable. Here we propose to protest each bitplane considering its significance using variable memory length in the encoder. Since increasing the memory length results in higher computational complexity, the optimum mix of the memory length is to be evaluated for the codec to operate within the conceptual restrictions of low-complex encoder in DVC.In this paper, the proposed codec is compared for performance with another DVC codec which uses a fixed memory length over the whole sequence with comparable complexity. Simulation results show that the proposed method outperforms its fixed memory length counterpart t by a significant margin.
Year
DOI
Venue
2006
10.1109/CCECE.2006.277416
2006 CANADIAN CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING, VOLS 1-5
Keywords
Field
DocType
DVC, Wyner-Ziv coding, turbo coding
Signal processing,Computer science,Turbo code,Algorithm,Coding (social sciences),Electronic engineering,Theoretical computer science,Encoder,Decoding methods,Codec,Least significant bit,Computational complexity theory
Conference
ISSN
Citations 
PageRank 
0840-7789
2
0.40
References 
Authors
5
4