Rule-based combination of video quality metrics

Abstract

Abstract-Lately, several algorithms have been proposed to automatically estimate the quality of video sequences, even some have been included in international standards. However, the majority only provide high performance under particular conditions and with certain types of degradations. Therefore, some proposals have been presented setting out the combination of various quality metrics to improve the performance and the range of application. In this paper, a rule-based combination of standardized metrics is presented, in contrast to most of these type of approaches based on combinational models. The proposed system consists of a first stage in which the type of degradation affecting the video quality is identified to be caused by coding impairments or transmission errors. Then, the most appropriate metric for that distortion is applied. Specifically, VQM and VQuad have been considered for coding and transmission distortions, respectively. The results show that the overall performance is better than using the quality metrics individually.

Analysis of quality of experience in 3D video systems

“…Specifically, VQM [84] and VQuad [88] have been considered for coding and transmission distortions, respectively, and also some features of VQM were used in the detection step. The results showed a good performance of the approach compared with other state-of-the-art metrics, and that the overall performance is better than using the quality metrics individually [62]. Future work will be focused on the improvement of the stage for detecting and identifying impairments, and the study of using no-reference video quality metrics for quality monitoring in video distribution networks.…”

“…This way, it is possible to combine different reliable quality metrics to achieve robust evaluations of the video quality in scenarios with distinct degradations. Although the idea and final objective is to use NR metrics, a first implementation of the system (depicted in Figure 5.31) analyzed the use of standardized FR metrics [62]. Specifically, VQM [84] and VQuad [88] have been considered for coding and transmission distortions, respectively, and also some features of VQM were used in the detection step.…”

“…Moreover, the study comparing consumer display technologies for 3D video was published in the Journal of Display Technology [56], while the work concerning SMV was published in QoMEX 2012 [15]. Finally, apart from the aforementioned contributions, the work carried out during the elaboration of this thesis in relation to the development of objective quality metrics resulted in publications in various conferences [30,37,59,62,140], and also in a contribution to the book IPTV Multiservice QoE Management System [31].…”