Rate controlling in off line 3D video coding using evolution strategy

In this paper, we propose a rate control technique for 3D video using subjective quality for off line video coding. We propose to use Video Quality Metric (VQM) with an evolution strategy (ES) algorithm, which is capable of identifying the best possible quantization parameters for each 16times16 macroblock, of both colour and depth map videos, to encode the 3D sequence such that it would maximize the subjective quality of the entire video sequence subjected to the target bit rate. Simulation results suggest that the proposed technique can improve the RD performance of the H.264/AVC codec significantly. With the proposed technique, up to 35% bit rate reduction can be achieved at the same video quality. Furthermore, results show that the proposed technique can improve the subjective quality of the encoded video significantly for video sequences especially with high motion.