THE APPARATUS AND METHOD OF MOVING PICTURE ENCODING

摘要

An apparatus and a method for encoding a moving picture are provided to reduce a calculation load of a video compression system and quicken a compression speed by searching a condition, capable of omitting an intra prediction by using a rate-distortion cost value of neighboring macro blocks for a macro block to be currently encoded, and encoding the macro block. An encoding unit(110) encodes a macro block of a specific picture through coding modes in an inter prediction and an intra prediction. A transform/quantization unit(120) removes the redundancy of image data and quantizes the image data. A VLC(Variable Length Coding) unit(130) transforms a length of a codeword according to a generation frequency of specific symbols and compresses data. An inverse transform/quantization unit(140) performs an inverse function of the transform/quantization unit(120). A rate-distortion cost calculating unit(150) calculates rate-distortion cost on the basis of a rate value received from the VLC unit(130) and a distortion value received from the inverse transform/quantization unit(140). A mode selecting unit(160) stores the calculated result of the rate-distortion cost calculating unit(150) according to respective modes, judges a mode with the minimum rate-distortion cost, and transmits the judged result to the encoding unit(110). When the minimum distortion cost in mode-classified distortion cost by an inter prediction of a macro block to be encoded is lower than a specific threshold value, the mode selecting unit(160) omits an intra prediction and sets an inter mode having the minimum distortion cost as the last coding code.