Circuit for motion estimation in digitized video sequence encoders
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United States of America Patent
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Sep 19, 2000
Grant Date -
N/A
app pub date -
Nov 13, 1998
filing date -
Mar 14, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
The circuit for motion estimation in digitised video sequence encoders comprises at least an integrated circuit component (IM, IM1 . . . IMn) which is arranged to perform either the function of determining motion vectors and associated costs for different prediction modes, or the function of vector refinement, possibly in addition to prediction mode selection. The circuit (IM) is based on the use of two operating units (M1, M2) which are arranged to concurrently process in different ways different pixel groups according to a MIMD technique. Preferably, when the circuit performs motion vector determination, the operating units (M1, M2) are programmed to execute a genetic algorithm exploiting an initial vector population taking into account the temporal and spatial correlations in the picture.
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