A statistical feedforward feedback buffer control for the transmission of digital video signals compressed by DCT-based intrafield coding

Abstract

A new buffer-control policy for intrafield coding of video signals is presented. This method employs two statistical bit rate predictors-feedback and feedforward. It uses a feedback predictor in stationary portions of an image sequence and a feedforward predictor at scene changes, It is shown that this buffer-control policy is reasonably simple to implement and can effectively control output bit rate even at scene changes.