The raw information content of frames in a video sequence differs. Some frames have high redundancy, showing large expanses of uniform colour. Others show lots of detail, and as such, inherently require more information to encode them. The conditional information of frame n in a sequence given frame n-1 also varies. It is high when a sharp scene change occurs or where there is a lot of rapid motion, lower for fades and wipes, and almost zero for continuous and unchanging scenes. The general problem we are addressing in this paper is how to optimally adjust the bit rate of a compressor to accomodate these changes in conditional information accross a complete video.
A report on this work is found in pdf format here and in html format there..
Constant bit rate | Minimized MSE |
---|---|
Constant bit rate | Minimized MSE |
---|---|