Scalable Distributed Video Coding for Wireless Video Sensor Networks

Hong YANG  Linbo QING  Xiaohai HE  Shuhua XIONG  

IEICE TRANSACTIONS on Information and Systems   Vol.E101-D   No.1   pp.20-27
Publication Date: 2018/01/01
Online ISSN: 1745-1361
Type of Manuscript: Special Section PAPER (Special Section on Enriched Multimedia — Potential and Possibility of Multimedia Contents for the Future —)
distributed video coding,  scalable video coding,  wireless video sensor network,  wavelet transform,  Slepian-Wolf coding,  

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Wireless video sensor networks address problems, such as low power consumption of sensor nodes, low computing capacity of nodes, and unstable channel bandwidth. To transmit video of distributed video coding in wireless video sensor networks, we propose an efficient scalable distributed video coding scheme. In this scheme, the scalable Wyner-Ziv frame is based on transmission of different wavelet information, while the Key frame is based on transmission of different residual information. A successive refinement of side information for the Wyner-Ziv and Key frames are proposed in this scheme. Test results show that both the Wyner-Ziv and Key frames have four layers in quality and bit-rate scalable, but no increase in complexity of the encoder.