Efficient block comparisons for motion estimation

Details Efficient block comparisons for motion estimation Efficient block comparisons for motion estimation

1994-12-30

1996-06-11

Gordon, Paul P.

Boots, shoes, and leggings

382232, H04N 7137, H04N 736

Patent

active

055262953

ABSTRACT:
In a digital video motion estimation compression and decompression system pixel block comparisons are accomplished by eliminating or substantially reducing the DC component of the spatial frequency spectrum of the pixel block data prior to doing comparisons. This allows for accurate and efficient block matching even in situations where the video image temporally fades or brightens, as often occurs in real-world video imaging situations.

REFERENCES:
patent: 4797729 (1989-01-01), Tsai
patent: 4821119 (1989-04-01), Gharavi
patent: 5448310 (1995-09-01), Kopet et al.
patent: 5481307 (1996-01-01), Goldstein et al.

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