Analysis of a two step MPEG video system
The efficiency of a rate control mechanism depends on the knowledge about the video complexity. The high number of different occurrences that can exist in a given video sequence makes it very difficult to encode at a constant bit rate while maintaining constant the picture quality. This paper presents a ‘feed forward bit rate control’ to improve the perceptual quality of a video sequence. The algorithm also produces indexing information that allows detecting and classifying scene cuts.
KeywordsMPEG scene change scene complexity bit rate control
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- ISO/EEC 11172-2, “Information Technology — Coding of Moving Pictures and Associated Audio for Digital Storage Media at up to about 1,5 Mbids-video”, Geneva, 1993.Google Scholar
- ISO/IEC IS 13818-2: Generic coding of moving pictures and associated audio, November 1994Google Scholar
- ISO/IEC-JTC1/SC29/WGll MPEG93/457 MPEG Video Test Model 5 (TM-5), April 1993.Google Scholar
- K. Ramchandran, A. Ortega and M. Vetterli, “Bit allocation for dependent quantization with applications to MPEG video codec”, Proc. Internat. Conf. Acoust. Speech Signal Processing. 1993, Minneapolis, March 1993Google Scholar
- Liang-Jin Lin, A. Ortega, C.-C. Jay Kuo, “Gradient-based buffer control technique for MPEG”, VCIP 95, Taipei, Taiwan, May 1995Google Scholar