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Encoder Control Enhancement in HEVC Based on R-Lambda Coefficient Distribution

Encoder control, known as Rate control, has been developed in the video coding standard to obtain the consistent video perceptual quality for various video applications. However, the pictures within a group of picture (GOP) are quite similar to each other, where the existing rate control, R-Lambda rate control, cannot address correctly. Hence, we propose the R-Lambda coefficient distribution in the latest video coding standard, High Efficiency Video Coding (HEVC), to enhance the prediction of encoder control. The experimental results show the proposed algorithm can accomplish slightly better video perceptual quality of the reconstructed video than the original rate control in HEVC reference software (HM-16.10).