Moving picture compression encoding method, apparatus and program

摘要

Disclosed are an apparatus and method that make possible high-speed mode selection using an evaluation standard of high encoding efficiency in intra prediction. The apparatus includes a first cost calculator for generating cost values from difference information indicative of differences between prediction signals, which have been generated by a prediction signal generator, and a moving picture signal that is input to a moving picture compression encoding apparatus; a preliminary selector for selecting at least two prediction modes based upon the cost values and outputting these prediction modes to a second cost calculator; the second cost calculator for frequency-converting the prediction modes that have been output from the preliminary selector and generating new cost values; and a prediction mode selector for selecting the optimum prediction mode based upon the cost values prevailing after the frequency conversion.