Image compression with transform coefficient analysis

Details Image compression with transform coefficient analysis Image compression with transform coefficient analysis

2006-07-18

2006-07-18

Alavi, Amir (Department: 2621)

Image analysis

Image compression or coding

Transform coding

C382S232000

Reexamination Certificate

active

07079697

ABSTRACT:
A method of image/video compression with intra-coding blocks analyzed for sum of absolute magnitudes of AC coefficients of DCT of block to determine whether to approximate the block with 0 AC coefficients, and with inter-coding blocks analyzed for sum of absolute differences of block and predicted block to determine whether to approximate the block with a 0 block.

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