Patent ID: 9445089
Filing Date: 2016-09-13
CPC Classification: H04N

Claim Text:
1. A video encoding device, which uses intra encoding and inter encoding with motion compensation with respect to an input video signal, comprising: a determination unit which determines whether the input video signal to be encoded corresponds to a stationary region, a region having minute motion or a region having normal motion; a first encoding unit which performs inter encoding of a motion vector with respect to a region determined as a stationary region by the determination unit; a second encoding unit which performs motion search and inter encoding in a limited search range with respect to a region determined as a region having minute motion by the determination unit; and a third encoding unit which performs motion search and inter encoding in a normal search range with respect to a region determined as a region having normal motion by the determination unit, wherein: the determination unit determines whether or not the input video signal is a signal of the stationary region with reference to similarity between an encoding target frame and a reference frame; and when it is determined that the input video signal is not a signal of the stationary region, the determination unit determines whether the input video signal is a signal of the region having normal motion or a signal of the region having minute motion based on a result of comparison between |PMV|, which is a predicted vector calculated using a center value of a motion vector calculated in a peripheral block, and a threshold; even when it is determined that the input video signal is not a signal of the stationary region, the determination unit performs a further determination before the comparison between |PMV| and the threshold, wherein in said further determination, the input video signal is determined to be: