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Distributed joint source-channel coding of video using raptor codes
(United States. Patent and Trademark Office, 2012-11-20)
A video encoder system includes a base layer and an enhancement layer for encoding video data. The base layer encodes a reduced quality version of the video data to obtain base layer data. The enhancement layer encodes the ...
Wyner-Ziv coding based on TCQ and LDPC codes
(United States. Patent and Trademark Office, 2008-08-19)
An encoder employs a trellis coded quantization (TCQ) unit and a compression unit. The TCQ uses a set of polynomials that have been selected to maximize granular gain. The TCQ unit operates on a block of samples from a ...
Compress-forward coding with N-PSK modulation for the half-duplex Gaussian relay channel
(United States. Patent and Trademark Office, 2011-03-22)
Systems and methods that implement compress-forward (CF) coding with N-PSK modulation for the relay channel are disclosed, where N is greater than or equal to two. In the CF scheme, Wyner-Ziv coding is applied at the relay ...
Multi-source data encoding, transmission and decoding using Slepian-Wolf codes based on channel code partitioning
(United States. Patent and Trademark Office, 2010-01-26)
System and method for Slepian-Wolf coding using channel code partitioning. A generator matrix is partitioned to generate multiple sub-matrices corresponding respectively to multiple correlated data sources. The partitioning ...
Multi-source data encoding, transmission and decoding using slepian-wolf codes based on channel code partitioning
(United States. Patent and Trademark Office, 2011-11-22)
System and method for designing Slepian-Wolf codes by channel code partitioning. A generator matrix is partitioned to generate a plurality of sub-matrices corresponding respectively to a plurality of correlated data sources. ...
Wyner-Ziv coding based on TCQ and LDPC codes
(United States. Patent and Trademark Office, 2012-06-26)
An encoder employs a trellis coded quantization (TCQ) unit and a compression unit. The TCQ uses a set of polynomials that have been selected to maximize granular gain. The TCQ unit operates on a block of samples from a ...
Layered Wyner-Ziv video coding for transmission over unreliable channels
(United States. Patent and Trademark Office, 2011-12-06)
A system and method for video coding. Energy-concentrating transform operations are performed on video data to obtain transformed data. Nested scalar quantization is performed on the transformed data to generate blocks of ...
Source-channel approach to channel coding with side information
(United States. Patent and Trademark Office, 2012-08-14)
Code designs for channel coding with side information (CCSI) based on combined source-channel coding are disclosed. These code designs combine trellis-coded quantization (TCQ) with irregular repeat accumulate (IRA) codes. ...
Data encoding and decoding using Slepian-Wolf coded nested quantization to achieve Wyner-Ziv coding
(United States. Patent and Trademark Office, 2007-08-14)
A system and method for realizing a Wyner-Ziv encoder may involve the following steps: (a) applying nested quantization to input data from an information source in order to generate intermediate data; and (b) encoding the ...
Data encoding and decoding using Slepian-Wolf coded nested quantization to achieve Wyner-Ziv coding
(United States. Patent and Trademark Office, 2007-11-13)
A system and method for realizing a Wyner-Ziv encoder may involve the following steps: (a) apply nested quantization to input data from an information source in order to generate intermediate data; and (b) encode the ...