TY - GEN
T1 - On SSIM-bit rate comparison of HEVC encoders
AU - Zhao, Tiesong
AU - Wang, Zhou
AU - Kwong, Sam
AU - Chen, Chang Wen
N1 - Publisher Copyright: © 2015 Asia-Pacific Signal and Information Processing Association.
PY - 2016/2/19
Y1 - 2016/2/19
N2 - The popular Structural SIMilarity (SSIM) index has shown to be a good perceptual criterion for testing and optimizing video encoders such as the MPEG-H/H.265 High Efficiency Video Coding (HEVC). However, it is still unclear how to compare two HEVC encoders with a number of bit rates and SSIM values. In this work, we study the video quality comparison of HEVC encoders based on the Bit Rate-SSIM (R-S) curves. Our contributions are three-fold. First, we exploit how to interpolate an R-S curve when only a small number of R-S samples are available. We also develop to minimize the weighted sum of squared errors during the interpolation process, where the weights are pre-defined by users to satisfy the diversified requirements. Second, we propose an approach to evaluate the perceptual coding gain in terms of the R-S improvement between two individual video encoders. Third, as an application, we utilize the proposed approach to compare the R-S performances of HEVC encoders with different configurations.
AB - The popular Structural SIMilarity (SSIM) index has shown to be a good perceptual criterion for testing and optimizing video encoders such as the MPEG-H/H.265 High Efficiency Video Coding (HEVC). However, it is still unclear how to compare two HEVC encoders with a number of bit rates and SSIM values. In this work, we study the video quality comparison of HEVC encoders based on the Bit Rate-SSIM (R-S) curves. Our contributions are three-fold. First, we exploit how to interpolate an R-S curve when only a small number of R-S samples are available. We also develop to minimize the weighted sum of squared errors during the interpolation process, where the weights are pre-defined by users to satisfy the diversified requirements. Second, we propose an approach to evaluate the perceptual coding gain in terms of the R-S improvement between two individual video encoders. Third, as an application, we utilize the proposed approach to compare the R-S performances of HEVC encoders with different configurations.
UR - https://www.scopus.com/pages/publications/84986223695
U2 - 10.1109/APSIPA.2015.7415514
DO - 10.1109/APSIPA.2015.7415514
M3 - Conference contribution
T3 - 2015 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2015
SP - 246
EP - 251
BT - 2015 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2015
Y2 - 16 December 2015 through 19 December 2015
ER -