MOTION VECTOR DETECTING METHOD AND MOTION VECTOR DETECTION CIRCUIT

MOTION VECTOR DETECTING METHOD AND MOTION VECTOR DETECTION CIRCUIT

PROBLEM TO BE SOLVED: To provide a motion vector detecting method and a motion vector detection device which is especially applied to motion vector detection by a gradient method by which the detecting accuracy of a motion vector is improved by a constitution simpler than a conventional one. SOLUTIO...

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1. Verfasser: YAMAUCHI TATSURO
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a motion vector detecting method and a motion vector detection device which is especially applied to motion vector detection by a gradient method by which the detecting accuracy of a motion vector is improved by a constitution simpler than a conventional one. SOLUTION: The motion vector detection circuit 52 by a direct gradient method outputs predetermined fixed values 1 and 0 in place of output values of immediately preceding integrating circuits 61, 62 and 64 and subtracting circuits 77 and 80 in accordance with picture element gradients Σ(ΔX)2and Σ(ΔY)2. COPYRIGHT: (C)2008,JPO&INPIT