2002

paper

english

EN The paper describes a simple empirical model of bitstreams produced by MPEG-2 video coders. The number of bits that represent an I- or P-frame is expressed as a function of the quantization factor Q. This model is global in the sense that it describes the total number of bits in a frame thus ignoring local bitrate variation within a frame as well as changes of Q within a frame. This five-parameter model fits well to experimental data. Four of these parameters may be fixed thus obtaining a less accurate one-parameter model that can be used for coder control. The experimental results are reported for some video test sequences in the BT.601/4CIF format encoded by an MPEG-2 MP@ML coder.

646 - 648

10.1109/ICME.2002.1035864

https://ieeexplore.ieee.org/document/1035864

IEEE International Conference on Multimedia and Expo : proceedings, August 26-29, 2002, Lausanne, Switzerland

IEEE International Conference on Multimedia and Expo, ICME 2002, 26-29.08.2002, Lausanne, Switzerland