Effects of frame rate, frame size and MPEG2 compression on the perceived compressed video quality transmitted over lossy IP networks
Effects of frame rate, frame size and MPEG2 compression on the perceived compressed video quality transmitted over lossy IP networks
复制标题
帧速率、帧大小和 MPEG2 压缩对通过有损 IP 网络传输的感知压缩视频质量的影响
DOI：
10.1109/itre.2004.1393644
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
O. Hadar
中科院分区：
文献类型：
--
作者：
R. Shmueli;R. Huber;O. Hadar
本文的目的是分析观众感知质量与编码方案之间的关系。编码方案取决于MPEG2视频序列的恒定比特率(CBR)视频传输中的传输比特率、MPEG压缩深度、帧大小和帧速率。压缩的视频序列在具有服务质量(Qos)和特定IP丢失模型的有损通信网络上传输。在最终用户端，观众感知的质量取决于网络条件和视频复杂性的变化。证明了当综合考虑编码码率、丢包率和视频复杂度的影响时，存在一个取决于视频内容的最优编码方案。这种最佳编码方案最大化了观众感知的质量。
The purpose of this paper is to analyze the relationship between viewer-perceived quality and encoding schemes. The encoding schemes depend on transmission bit-rate, on MPEG compression depth, on frame size and on frame rate in a constant bit-rate (CBR) video transmission of a MPEG2 video sequence. The compressed video sequence is transmitted over a lossy communication network with quality of service (QoS) and a certain IP loss model. On the end-user side, viewer-perceived quality depends on changes in the network conditions and on video complexity. We demonstrate that, when jointly considering the impact of coding bit rate, packet loss and video complexity, there is an optimal encoding scheme, which depends on the video content. This optimal encoding scheme maximizes the viewer-perceived quality.
DOI：
10.1364/josaa.10.002458
发表时间：
1993-12-01
影响因子：
1.9
作者：
POIRSON, AB;WANDELL, BA
通讯作者：
WANDELL, BA