Patent ID: 8787462
Filing Date: 2014-07-22
Classification: H04N

Abstract:
1. A video signal processing apparatus comprising: a motion vector detection unit configured to compare a first frame image and a second frame image, and detect a motion vector or each of a plurality of blocks obtained by dividing a frame image into blocks: a scroll vector detection unit configured to detect a scroll vector which indicates a uniform motion in an entire frame image based on the detected motion vector; a determination unit configured to calculate, for each block in the first frame image, a difference between a correlation value in block matching of the block in the first frame image with an area obtained by shifting the block in the second frame image by an amount of the scroll vector, and a correlation value in block matching of the block in the first frame image with an area obtained by shifting the block in the, second, frame image by an amount of the motion vector of the block, and determine whether frame interpolation using the scroll vector is possible, or not based on the calculation result; and a frame interpolation unit configured to generate an interpolated frame using the scroll vector which indicates a uniform motion in the entire frame image when the determination unit determines that the frame interpolation using the scroll vector is possible, and generate the interpolated frame using the motion vector detected for each of a plurality of blocks by the motion vector detection unit when the determination unit determines that the frame interpolation using the scroll vector is impossible.