Copyright © 2008 The Institute of Electronics, Information and Communication Engineers
Special Section on Signal Processing for Audio and Visual Systems and Its Implementations -- Papers -- Image Processing |
Theoretical Modeling of Inter-Frame Prediction Error for High Frame-Rate Video Signal
1 The authors are with NTT Cyber Space Laboratories, NTT Corporation, Yokosuka-shi, 239-0847 Japan. E-mail: bandou.yukihiro{at}lab.ntt.co.jp
Realistic representations using extremely high quality images are becoming increasingly popular. For example, digital cinemas can now display moving pictures composed of high-resolution digital images. Although these applications focus on increasing the spatial resolution only, higher frame-rates are being considered to achieve more realistic representations. Since increasing the frame-rate increases the total amount of information, efficient coding methods are required. However, its statistical properties are not clarified. This paper establishes for high frame-rate video a mathematical model of the relationship between frame-rate and bit-rate. A coding experiment confirms the validity of the mathematical model.
Key Words: high frame-rate sequence, statistical model, video coding, inter-frame prediction
Manuscript received July 20, 2007. Manuscript revised October 19, 2007.
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