Title :
The relationship between bit-per-pixel, resolution and video quality based on H.264
Author :
Lei Xiaohua ; Jiang Xiuhua ; Wang Caihong
Author_Institution :
Sch. of Inf. Eng. Commun., Univ. of China, Beijing, China
Abstract :
In this paper we study the relationship between bit-per-pixel (bit/pixel), resolution and video quality based on H.264. First, we choose 4 most representative 1920x1080 progressive sequences depending on the TI and SI of them. Then, we process these sequences into 5 kinds of resolution and encode these sequences to 6 kinds of bit-per-pixel. Next we calculate SSIM between damaged sequence and original sequence. Finally, according to the relationship between SSIM and MOS, we propose a model that reflects the relationship between bit-per-pixel, resolution, and video quality. The model in this paper shows that when the resolution is unchanged, video quality rises as BPP increased; when the BPP is unchanged, video quality rises as the resolution increased.
Keywords :
data compression; image resolution; image sequences; video coding; BPP; H.264; MOS; SI; SSIM; TI; bit-per-pixel; mean opinion score; sequences encoding; spatial information; time information; video quality; SSIM; bit per pixel; resolution; video quality;
Conference_Titel :
Cyberspace Technology (CCT 2014), International Conference on
Print_ISBN :
978-1-84919-928-5
DOI :
10.1049/cp.2014.1370