A REAL-TIME HIGH SPEED FULL SEARCH BLOCK MATCHING MOTION ESTIMATION PROCESSOR

摘要

In the hierarchical block search, the present invention improves the utilization of hardware by eliminating the delay time due to the dependency between several motion estimation layers, and has the scalability and variability based on the unified architecture. The present invention relates to a calculation method for fast real-time processing motion estimation and an apparatus for the same, which can be extended and applied to a device. Pixel motion estimation processor 104, past frame storage memory 105-111 for storing data necessary for operation on one macro block and current frame macro block data 112-118 corresponding to the macro block of each past frame. Is done. The first, second, and third hierarchical search motion estimation processors 101, 102, and 103 perform a motion estimation operation of each layer in parallel, and the past frame data of the processor is based on a motion vector of a higher layer. The frame search area is determined. Thereafter, a delay occurs because the operation must be started only after past frame data of the motion vector is input to the lower layer motion estimation processor. The motion estimation processor 101-104 calculates the past frame macroblocks stored in the past frame storage memories 105, 107, 109, and 111, respectively, based on the unified architecture in various motion estimation calculation modes. It is a very useful invention that can realize high speed operation and increase the redundancy of input data, thereby minimizing the number of input / output pins and minimizing the amount of hardware.