Region-Based Rate Control and Bit Allocation for Video Coding
Dayong Wang, Sun Shi-xin · 2008
In this paper, we propose adopts a fast but effective block-based segmentation method to extract the regions of interest. Distributing bit allocation methods depends on the region/content-based, which directly control bit allocation among different regions so as to achieve better visual quality in the regions of interest. Our algorithm can effectively enhance the perceptual quality for the regions of interest. Simulation results are presented, using the silent. yuvsequences, which show reconstructed images of better quality, as well as signal-to-noise ratio improvements of about 3.1 dB, compared to those achieved by standard h.264 encoders.