Multiple Priority Region of Interest Coding with H.264

@article{Agrafiotis2006MultiplePR,
  title={Multiple Priority Region of Interest Coding with H.264},
  author={Dimitris Agrafiotis and David R. Bull and Cedric Nishan Canagarajah and Nawat Kamnoonwatana},
  journal={2006 International Conference on Image Processing},
  year={2006},
  pages={53-56}
}
This paper describes a modified rate control algorithm for H.264 that can accommodate multiple priority levels given a region of interest (Rol). The modified method allows better control of the quality of the RoI and gradual variation of the quality in the rest of the video frame through a bit redistribution process that is based on a number of parameters, including characteristics of the Rol, user input and perceptual factors. 
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