Design of a Low Power Video Decompression Chip Set for Portable Applications

Gordon, Benjamin M.; Tsern, E.K.; Meng, Tao

doi:10.1007/978-1-4613-1453-0_4

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2002

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Cited by 2 publications

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“…it needs 3 times more off-chip memory accesses. Since one access to the external frame memory requires 400 times more energy than an internal (on-chip) memory access [2), the number of frame memory accesses must be minimized as much as possible. This paper addresses algorithmic optimizations, capable of reducing the amount of frame memory accesses in video encoding system.…”

Section: Motivationmentioning

confidence: 99%

Reduction of memory accesses in motion estimation by block-data reuse

Moshnyaga

2002

IEEE International Conference on Acoustics Speech and Signal Processing

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A new algorithmic approach to reduce the number of frame memory accesses in video coding system is proposed. The approach is based on observation that a large portion of ac cesses to the frame memory is spent fOI Ie-writing multiple blocks of data whose content remains constant between the adjacent frames. Due to data-driven mechanism of block characterization and selective block processing, the method can reduce the amount of frame memory accesses by as much as 79%, while providing high picture quality. An im plemeniation scheme is presented.

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Section: Motivationmentioning

confidence: 99%