Video Coding: An Introduction to Standard Codecs
Video Coding: An Introduction to Standard Codecs
Algorithm Design
Performance evaluation of video streaming in multihop wireless mesh networks
Proceedings of the 18th International Workshop on Network and Operating Systems Support for Digital Audio and Video
The impact of link-layer retransmissions on video streaming in wireless mesh networks
Proceedings of the 4th Annual International Conference on Wireless Internet
Steganalysis using image quality metrics
IEEE Transactions on Image Processing
A more realistic rtp/rtcp-based simulation platform for video streaming QoS evaluation
Journal of Mobile Multimedia
A game-theoretic multipath routing for video-streaming services over Mobile Ad Hoc Networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Temporal quality assessment for mobile videos
Proceedings of the 18th annual international conference on Mobile computing and networking
Framework for the integrated video quality assessment
Multimedia Tools and Applications
Evaluating perceptual video quality for mobile clients in 802.11n WLAN
Proceedings of the 8th ACM international workshop on Wireless network testbeds, experimental evaluation & characterization
Traffic aware video dissemination over vehicular ad hoc networks
Proceedings of the 16th ACM international conference on Modeling, analysis & simulation of wireless and mobile systems
Hi-index | 0.00 |
Peak Signal-to-Noise Ratio (PSNR) is the simplest and the most widely used video quality evaluation methodology. However, traditional PSNR calculations do not take the packet loss into account. This shortcoming, which is amplified in wireless networks, contributes to the inaccuracy in evaluating video streaming quality in wireless communications. Such inaccuracy in PSNR calculations adversely affects the development of video communications in wireless networks. This paper proposes a novel video quality evaluation methodology. As it not only considers the PSNR of a video, but also with modificatioIls to handle the packet loss issue, we name this evaluation method MPSNR. MPSNR rectifies the inaccuracies in traditional PSNR computation, and helps us to approximate subjective video quality, Mean Opinion Score (MOS), more accurately. Using PSNR values calculated from MPSNR and simple network measurements, we apply linear regression techniques to derive two specific objective video quality metrics, PSNR-based Objective MOS (POMOS) and Rates-based Objective MOS (ROMOS). Through extensive experiments and human subjective tests, we show that the two metrics demonstrate high correlation with MOS. POMOS takes the averaged PSNR value of a video calculated from MPSNR as the only input. Despite its simplicity, it has a Pearson correlation of 0.8664 with the MOS. By adding a few other simple network measurements, such as the proportion of distorted frames in a video, ROMOS achieves an even higher Pearson correlation (0.9350) with the MOS. Compared with the PSNR metric from the traditional PSNR calculations, our metrics evaluate video streaming quality in wireless networks with a much higher accuracy while retaining the simplicity of PSNR calculation.