Title :
Block-based adaptive compressed sensing with feedback for DCVS
Author :
Jinxiu Zhu ; Yao Zhang ; Guangjie Han ; Chuan Zhu
Author_Institution :
Dept. of Inf. & Commun. Syst., Hohai Univ., Changzhou, China
Abstract :
In this paper, we propose a rate adaptive compressed sensing for block-based DCVS framework, in which the sampling rate is estimated at the decoder side and can be sent back to the encoder via the return channel. The assignment of measurements rate (MR) is depending on the variance of the residual measurements between SI and the reconstructed CS frame. By comparing with the encoder-based scheme, the proposed scheme can achieve a comparable result with more stable and smaller transmission rate, which can briefly increase the transform efficiency as well as reduce the band width.
Keywords :
adaptive codes; block codes; compressed sensing; feedback; block-based DCVS feedback; block-based adaptive compressed sensing; measurements rate; residual measurements; Compressed sensing; Current measurement; Decoding; Image coding; Image reconstruction; Sensors; Silicon; adaptive compressed sensing; multihypothesis prediction; residual variance; side information;
Conference_Titel :
Communications and Networking in China (CHINACOM), 2014 9th International Conference on
DOI :
10.1109/CHINACOM.2014.7054371