Two-Terminal Video Coding

Following recent works on the rate region of the quadratic Gaussian two-terminal source coding problem and limit-approaching code designs, this paper examines multiterminal source coding of two correlated, i.e., stereo, video sequences to save the sum rate over independent coding of both sequences....

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Bibliographic Details
Published in:IEEE transactions on image processing Vol. 18; no. 3; pp. 534 - 551
Main Authors: Yang Yang, Stankovic, V., Zixiang Xiong, Wei Zhao
Format: Journal Article
Language:English
Published: New York, NY IEEE 01.03.2009
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Algorithms
Allocations
Applied sciences
Automatic voltage control
Belief propagation
Codes
Coding
Coding, codes
Compressing
Computer Communication Networks
Data Compression - methods
Data Compression - standards
Decision Support Techniques
Decoders
Decoding
Detection, estimation, filtering, equalization, prediction
Exact sciences and technology
Frames
H.264/AVC
Image coding
Image Enhancement - methods
Image Interpretation, Computer-Assisted - methods
Image processing
Information, signal and communications theory
Internationality
Low density parity check codes
Mathematical analysis
multiterminal source coding
Parity check codes
Quantization
Reproducibility of Results
Sampling, quantization
Sensitivity and Specificity
Signal and communications theory
Signal processing
Signal Processing, Computer-Assisted
Signal, noise
Slepian-Wolf coding
Source coding
stereo matching
Telecommunications and information theory
Vectors (mathematics)
Video coding
Video Recording - methods
Video Recording - standards
Video sequences
Wyner-Ziv coding
Video coding
Image processing
multiterminal source coding
Data compression
Resource allocation
Video signal
Video signal processing
Slepian―Wolf coding
Credal approach
Wyner―Ziv coding
Image matching
Image sequence
stereo matching
Parity check codes
Motion compensation
Source coding
Motion estimation
Vector quantization
Decoding
H.264/AVC
Image quality
Algorithm performance
Signal processing
Error correcting code
Tridimensional image
Wyner Ziv problem
Disparity
Resource management
ISSN:1057-7149, 1941-0042
Online Access:Get full text
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Summary:Following recent works on the rate region of the quadratic Gaussian two-terminal source coding problem and limit-approaching code designs, this paper examines multiterminal source coding of two correlated, i.e., stereo, video sequences to save the sum rate over independent coding of both sequences. Two multiterminal video coding schemes are proposed. In the first scheme, the left sequence of the stereo pair is coded by H.264/AVC and used at the joint decoder to facilitate Wyner-Ziv coding of the right video sequence. The first I-frame of the right sequence is successively coded by H.264/AVC intracoding and Wyner-Ziv coding. An efficient stereo matching algorithm based on loopy belief propagation is then adopted at the decoder to produce pixel-level disparity maps between the corresponding frames of the two decoded video sequences on the fly. Based on the disparity maps, side information for both motion vectors and motion-compensated residual frames of the right sequence are generated at the decoder before Wyner-Ziv encoding. In the second scheme, source splitting is employed on top of classic and Wyner-Ziv coding for compression of both I-frames to allow flexible rate allocation between the two sequences. Experiments with both schemes on stereo video sequences using H.264/AVC, LDPC codes for Slepian-Wolf coding of the motion vectors, and scalar quantization in conjunction with LDPC codes for Wyner-Ziv coding of the residual coefficients give a slightly lower sum rate than separate H.264/AVC coding of both sequences at the same video quality.
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ISSN:1057-7149
1941-0042
DOI:10.1109/TIP.2008.2010148