Department of Telecommunications and Teleinformatics, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland.
Sensors (Basel). 2021 Jul 4;21(13):4589. doi: 10.3390/s21134589.
Finding a proper balance between video quality and the required bandwidth is an important issue, especially in networks of limited capacity. The problem of comparing the efficiency of video codecs and choosing the most suitable one in a specific situation has become very important. This paper proposes a method of comparing video codecs while also taking into account objective quality assessment metrics. The author shows the process of preparing video footage, assessing its quality, determining the rate-distortion curves, and calculating the bitrate saving for pairs of examined codecs. Thanks to the use of the spline interpolation method, the obtained results are better than those previously presented in the literature, and more resistant to the quality metric used.
在视频质量和所需带宽之间找到适当的平衡是一个重要的问题，特别是在容量有限的网络中。比较视频编解码器的效率并在特定情况下选择最合适的编解码器的问题变得非常重要。本文提出了一种在考虑客观质量评估指标的同时比较视频编解码器的方法。作者展示了准备视频素材、评估其质量、确定率失真曲线以及计算两对检查编解码器的比特率节省的过程。由于使用了样条插值方法，得到的结果优于文献中以前提出的结果，并且对使用的质量度量更具抵抗力。
