Apparatus for estimating a half-pel motion in a video compressio

Details Apparatus for estimating a half-pel motion in a video compressio Apparatus for estimating a half-pel motion in a video compressio

1996-09-19

1997-12-02

Lee, Richard

Television

Image signal processing circuitry specific to television

Motion vector generation

348409, H04N 732

Patent

active

056941790

ABSTRACT:
An apparatus for estimating a half-pel motion comprising: a memory for storing motion-compensation errors in integer-pel positions; an address generator for generating an address of the integer-pel positions to the memory; an operator for receiving the motion-compensation errors from the memory, and calculating motion-compensation errors in the eight half-pel positions which are on the outskirts of the integer-pel position having a minimum motion-compensation error; and a comparator and half-pel motion vector selector for comparing the motion-compensation errors in the eight half-pel positions with the minimum motion-compensation error in the integer-pel position and selecting a position having a minimum motion-compensation error as a final half-pel motion vector.

REFERENCES:
patent: 4937666 (1990-06-01), Yang
patent: 5317397 (1994-05-01), Odaka et al.
patent: 5355168 (1994-10-01), Sugiyama
patent: 5398079 (1995-03-01), Liu et al.
patent: 5408269 (1995-04-01), Tsukagoshi
patent: 5489949 (1996-02-01), Jeong et al.
patent: 5493344 (1996-02-01), Yu

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