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In frame memory recompression, decompression latency consists of two components, i.e., memory access cycles for compressed data fetch, and decompression time. Compared to most earlier works which mainly focused on the compression ratio and, therefore, only reducing memory access cycles, this paper proposes a low-latency variable-length coding method called non-zero bit selection scheme (NBS). The...
Embedded compression is commonly employed in a video codec to reduce the data traffic to/from off-chip frame memory. We proposed a method for maintaining the memory bandwidth requirement at a significantly reduced level through dynamic search range adjustment for the motion estimation based on the observed relationship between the compression ratio and the motion vector. This, together with the so-called...
With a rapid increase of image resolution in recent mobile video systems, the memory bandwidth and power consumption have surfaced as critical problems in video coding. Despite many embedded compression algorithms proposed to overcome these problems, no proper algorithms have yet been reported with high enough throughput and no quality loss. This paper first proposes a lossless embedded compression...
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