VIDEO SIGNAL CODER

摘要

PROBLEM TO BE SOLVED: To prevent a code quantity from being deficient in the latter half of frames or the quantization step from being largely fluctuated in controlling the code quantity by N frames to be a desired value or below. SOLUTION: When a rearrangement memory 102 stores signals, a vector detection means 112 selects inter-frame coding or in-frame coding for all blocks of (N-1) frames to be processed. An object code quantity calculation means 114 uniformly assigns the code quantity by each block onto the entire frames so as to control the code quantity by each of the N-frames to be a prescribed value or below.