应用于智能移动影院的影片画面质量测试与研究

Research and Assessment of Picture Quality Applied to Smart Mobile Cinema

视频压缩编码技术在移动互联网以及移动终端设备中被广泛使用,H.264、H.265编码就是两种常见的编码格式。显而易见的是:采用过高的编码码率,编码效率会降低;而码率过低,画面质量就会下降。对于智能移动该影院来说效率与观影体验都是需要考虑的因素,因此如何选择恰当的码率,是本文探讨的目的所在。文章主要介绍了使用PQA600对不同码率的视频质量进行模拟主观评价的方法,并对测试结果整理分析,给出了适用于智能移动影院的编码码率指标。

Video compression coding technology is widely used in internet and mobile device,meanwhile,H.264 and H.265 are two commonly used formats for the recording,compression,and distribution of video content.It is obvious that the coding efficiency is lowered by using an excessively high coding rate,however,the picture quality is degraded if the coding rate is too low.Efficiency and viewing experience are two key factors that need to be considered by smart mobile cinema.This paper focuses on select the appropriate coding rate for smart mobile cinema,mainly introduces a method of using PQA600 to simulate subjective evaluation of video quality with different coding rates.The properly coding rate applicable to the smart mobile cinema will be provided by analyzing the test results.