Method and apparatus for fast block motion detection

Details Method and apparatus for fast block motion detection Method and apparatus for fast block motion detection

2006-01-03

2006-01-03

Le, Vu (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

Reexamination Certificate

active

06983020

ABSTRACT:
A method, system, and/or apparatus for quickly detecting blocks or regions in an image whose pixels that can be coded efficiently by a pointer to the same block occurring in a reference image. The reference image is shared between an encoder and a corresponding decoder. One embodiment of the encoder quickly detects such blocks in an image by: (a) defining features such that substantially fewer features occur in an image than pixels, (b) correlating features in an image to a corresponding feature in the reference image, (c) estimating a displacement vector representative of the displacement of the correlated features, (d) estimating a seed point within the displaced block from which to grow the block, and (e) growing the displaced block to determine its size, shape, and/or dimensions.

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