TR2003-028
| Rate-Distortion Models for Video Transcoding | |||
| Citation: | Yin, P.; Vetro, A.; Xia, M.; Liu, B., "Rate-Distortion Models for Video Transcoding", SPIE Conference on Image and Video Communications and Processing, Vol. 5022, pp. 467-488, January 2003 (Proc SPIE) | ||
| Date: | January 2003 | ||
| MERL Contact: | Anthony Vetro | ||
This paper addresses the problem of selecting a single transcoding method from multiple transcoding possibilities that satisfy a specified delivery constraint. We first discuss the rate-distortion modeling of DCT coefficients. Then, we quantify the distortion of the video transcoding output by examining the rate-distortion relationship of the popular transcoding techniques, including requantization, spatial downsampling and temporal downsampling. The use of our model is illustrated in some typical applications. | |||
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