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Transform-domain Wyner-Ziv video coding for 1K-pixel visual sensors

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5 Author(s)
Verbist, F. ; Dept. of Electron. & Inf., Vrije Univ. Brussel, Brussels, Belgium ; Deligiannis, N. ; Weiwei Chen ; Schelkens, P.
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Efficient coding of extremely low-resolution video has received a mere shadow of the attention given to their high-definition counterpart. However, low-resolution video still proves suitable for video processing and may enable the design of advanced video-based applications in a cost-effective manner. Indeed, visual sensors with modest frame resolutions can be designed to be small, low-cost and low-power. This paper introduces a novel efficient codec, specifically designed to handle extreme low-resolution video captured by such visual sensors. By applying Wyner-Ziv coding principles, the encoding complexity is reduced since temporal redundancy is exploited at the decoder. The proposed system outperforms H.264/AVC Intra and is therefore particularly attractive to wireless, resource-constraint low-resolution visual sensor applications by reducing the amount of transmitted data at a reduced computational cost.

Published in:

Distributed Smart Cameras (ICDSC), 2013 Seventh International Conference on

Date of Conference:

Oct. 29 2013-Nov. 1 2013