Motion estimation and compensation method and device...

Details Motion estimation and compensation method and device... Motion estimation and compensation method and device...

2011-04-12

2011-04-12

Popovici, Dov (Department: 2625)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240240, C375S240120, C375S240030, C375S240200

Reexamination Certificate

active

07924923

ABSTRACT:
Provided are a motion estimation device and method adaptive to change in illumination. The motion estimation method includes the steps of: generating a current frame pattern block and a reference frame pattern block for a reference frame block; calculating the sum of absolute differences (SAD) for candidate pattern blocks and determining the candidate pattern block corresponding to the SAD satisfying a predetermined condition among the calculated SAD as a motion vector; encoding the current frame block, and adding flag information indicating the addition of a mean pixel value applied to the encoded current frame block and identification information on the encoding mode as header information corresponding to the encoded current frame block.

REFERENCES:
patent: 5699474 (1997-12-01), Suzuki et al.

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