To enable the evaluation of the reliability of a motion vector even when a mean luminance level between frames largely fluctuates.
A block B1 on a position shifted by a vector amount of a correct motion vector v1 from a pixel p1 to which a pixel p0 on a frame t corresponds and a block B2 on a position shifted by a vector amount of a wrong motion vector v2 from the pixel p1 to which the pixel p0 corresponds are shown on a frame (t+1). In this case, even if the luminance level of the block B1 is largely deteriorated as a whole due to movement of a light source and passing of a shade only for the block B1, the squared sum of the luminance value from which a mean luminance value in an operation block is subtracted as offset per frame is used as an evaluation value, thereby determining that the evaluation value of the block B1 has higher reliability than the evaluation value of the block B2. This apparatus is applicable to a signal processing apparatus for executing frame frequency conversion processing from a 24P signal into a 60P signal.
TAKAHASHI YASUAKI
KAWAGUCHI KUNIO
YOSHIHARA NORIFUMI
KAINO AKIHIKO
NAGAKI YUTA
HORISHI MASARU
MORIFUJI TAKAFUMI
| JPH0865684A | 1996-03-08 | |||
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| JP2002112274A | 2002-04-12 | |||
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