Patent ID: 8064522
Filing Date: 2011-11-22
Classification: G06T,H04N

Abstract:
1. A motion-vector detecting device for detecting a motion vector from moving-picture data, the motion-vector detecting device comprising: an evaluation-value-table generator that generates an evaluation-value table on the basis of pixel-value correlation information between different frames on a temporal axis; and a motion-vector determiner that detects a motion vector for a pixel in a frame of moving-picture data on the basis of the evaluation-value table and that associates the motion vector with the pixel; wherein the evaluation-value-table generator includes: a pixel-correlation calculator that calculates correlation information between the different frames on the temporal axis on the basis of representative-point matching based on a representative point selected from one of the frames; a weight calculator that generates a confidence index of motion using at least one of a result of calculation by the pixel-correlation calculator and a result of calculation based on a pixel-value difference between a subject pixel and a pixel neighboring the subject pixel; and an evaluation-value-table calculator that generates an evaluation-value table by accumulating the evaluation value corresponding to the confidence index calculated by the weight calculator.