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This paper proposes a novel, fast, highly-parallel and configurable architecture for zigzag scan and optional scans in multiple video coding standards, including H.261, MPEG-1,2,4, H.264/AVC, and AVS. Arbitrary scan patterns could be supported by configuring the ROM data, and the proposed architecture can largely reduce the processing cycles. This makes it possible to integrate the scan unit into...
The latest video coding standards achieve high coding gains but result in high complexity. To reduce the computation involved and speed up the encoder, various All- Zero Block (AZB) early detection algorithms are designed to skip transform coding and quantization. In this paper, the orthogonal transformations are analyzed using the Euclid Space theory first, and then the sufficient and necessary conditions...
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