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Distributed video coding (DVC), a new video coding paradigm based on Slepian-Wolf and Wyner-Ziv theories, is a promising solution for implementing low-power and low-cost distributed wireless video sensors since most of the computation load is moved from the encoder to the decoder. In this paper, the hardware architecture design of an efficient distributed video coding system, hybrid DVC with frame-level coding mode selection, is proposed. With the fully block-pipelined architecture, coding mode pre-decision, and specially-designed LDPC code engine, the proposed hardware is an efficient solution for distributed video sensors with high rate-distortion performance.
Date of Conference: 3-6 Dec. 2012