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Multiple Priority Region of Interest Coding with H.264

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4 Author(s)
Dimitris Agrafiotis ; Centre for Communications Research, University of Bristol, Woodland Road, Bristol BS8 1UB, UK. E-mail: d.agrafiotis@bristol.ac.uk ; David R. Bull ; Nishan Canagarajah ; Nawat Kamnoonwatana

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.

Published in:

2006 International Conference on Image Processing

Date of Conference:

8-11 Oct. 2006