Method and apparatus for calculating the pixel values of a block

Details Method and apparatus for calculating the pixel values of a block Method and apparatus for calculating the pixel values of a block

1996-10-01

1998-05-19

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348402, 348413, 348443, 348699, H04N 0736

Patent

active

057542406

ABSTRACT:
A method for calculating the pixel values of a sub-pixel accuracy motion compensated block of video pixels from one or two reference blocks, as is required in typical digital video compression and decompression systems uses a minimal amount of temporary storage memory resulting in a compact architecture suited for inexpensive consumer applications. This method utilizes a pixel pipeline within a block line pipeline to calculate the half pel accurate reference blocks and to average two blocks to result in a prediction block of pixels. The lines from each reference block are input to the invention alternately resulting in reduced memory requirements.

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Araki et al., "Video DSP Architecture for MPEG2 CODEC," Proceedings of ICASSP-4, Apr. 1994.

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