HYBRID TYPE HIGH-SPEED MOTION ESTIMATE METHOD AND ITS DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a motion estimate method that combines the OPGS(One Pixel Greedy Search) algorithm and the HSBM(Hierarchical Search Block Matching) algorithm and to provide its device. SOLUTION: This invention provides the device that is characterized in that the device includes a process where a frame and a retrieval area in the unit of macro blocks are entered to predict a candidate motion vector for a macro block to be estimated and a process where when an error by the candidate motion vector predicted by the process above is included within a critical range, the motion is estimated within a retrieval area limited around the predicted position and when not, the motion is estimated by using the entire retrieval area for an object.