Enhance the efficiency of rate-control in VVC standard using the characteristics of human visual system

Document Type : Original Article

Authors
Maryam Ranjbar
Hoda Roodaki
Faculty of Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran
10.22034/jcse.2025.181902
Abstract
Rate control (RC) plays an essential role in video coding systems and makes the bitrate of an encoded video equal to the target bitrate while minimizing the distortion of the compressed video. Incorporating the characteristics of the human visual system (HVS) into RC makes it more efficient since the human eyes are the ultimate recipient of a video. In this paper, we rectified the rate-distortion algorithm of versatile video coding (VVC) standard to be more correlated with the perceptual video quality. For this purpose, the structural similarity index (SSIM) and the PSNR-HVS-M quality metrics are used as criteria that more closely resemble the way humans perceive structural distortions. Experimental results show that the proposed rate-distortion model can attain at most 1.77% and 1.8% bitrate saving in low delay (LD) and random access
(RA) configurations, respectively, compared to the VVC standard as the baseline.

Keywords