Objective Quality Assessment of Multi-Resolution Video based on H.264/AVC and H.265/HEVC Encoding Adhi Rizal (a*), Aries Suharso (a), Panji Abujabbar (a), Munir (b)
(a) Faculty of Computer Science, Universitas Singaperbangsa Karawang, Karawang 41361, Indonesia
*adhi.rizal[at]staff.unsika.ac.id
(b)Department of Computer Science Education, Universitas Pendidikan Indonesia
munir[at]upi.edu
Abstract
It is predicted that every year, online video traffic will continue increase significantly. This causes before digital video transmitted over the internet, a compression mechanism is required by using specific encoding technique so that it does not overload the senders and receivers traffic. Furthermore, this process is also needed to produce high quality video with low bitrate. At present, the latest video encoding techniques is H.264/AVC and the currently developing video encoding is H.265/HEVC. Therefore, this paper aims to carry out objective assessment by evaluating the encoding performance of the new standard compared to its predecessor H.264/AVC. In addition to produce a comprehensive investigation, we compared several resolutions (1080p, 720p, and 480p) with a combination of CRF (Constant Rate Factor) values and different encoder presets. Then to find out the performance of both techniques we used several test parameters such as encoding duration, compression ratio, bitrate, MSE, and PSNR. The results showed that H.264 was faster in terms of time needed to carried out the encoding process. Furthermore, the quality of the video output produced by H.264 also better, but not significant, only a slight difference with H.265 and it is cannot be seen directly. In addition, the compression ratio and bitrate of H.265 was better than its predecessor with a difference of 38.5% and 52.7%, respectively. Finally, if the user wants to prioritize better quality video output without having to sacrifice a lot of compression time and small file size, then our recommendation is to use H.265 encoding and by selecting an HD resolution configuration (720p) with medium presets and 18 CRF value.
