標題: Source model for transform video coder and its application .2. Variable frame rate coding
作者: Chen, JJ
Hang, HM
交大名義發表
電子工程學系及電子研究所
National Chiao Tung University
Department of Electronics Engineering and Institute of Electronics
關鍵字: image coding;rate distortion theory;source coding
公開日期: 1-四月-1997
摘要: In the first part of this paper, we derive a source model describing the relationship between bits, distortion, and quantization step size for transform coders, Based on this source model, a variable frame rate coding algorithm is developed, The basic idea is to select a proper picture frame rate to ensure a minimum picture quality for every frame, Because our source model can predict approximately the number of coded bits when a certain quantization step size is used, we could predict the quality and bits of coded images without going through the entire real-coding process, Therefore, we could skip the right number of picture frames to accomplish the goal of constant image quality, Our proposed variable frame rate coding schemes are simple but quite effective as demonstrated by simulation results. The results of using another variable frame rate scheme, Test Model for H.263 (TMN-5), and the results of using a fixed frame rate coding scheme, Reference Model 8 for H.261 (RM8), are also provided for comparison.
URI: http://dx.doi.org/10.1109/76.564109
http://hdl.handle.net/11536/616
ISSN: 1051-8215
DOI: 10.1109/76.564109
期刊: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
Volume: 7
Issue: 2
起始頁: 299
結束頁: 311
顯示於類別:期刊論文


文件中的檔案:

  1. A1997WR97700004.pdf