Perception of Temporal Quality Fluctuation for HEVC Coded Surveillance Videos

Abstract

The advanced high efficiency video coding (HEVC) standard has been widely used in video surveillance system which plays a critical role in the public security. In order to meet the real-time communication requirements of video surveillance system, the low-delay configuration in HEVC is usually used to encode surveillance videos. However, the low-delay configurations adopt hierarchical prediction structure which inevitably brings in the temporal quality fluctuation (TQF). And large TQF are easily perceived by human eyes which has significant impact on the quality and effective analysis (recognition, comparison, tracking, retrieval, etc.) of reconstructed surveillance videos. In this paper, the perceptual characteristics of TQF related to multiple perception degrees are analyzed for HEVC coded surveillance videos. These findings are foundations for further proposing strategies to reduce or even eliminate the perception of TQF in HEVC coded surveillance videos which helps to significantly improve the analysis efficiency of surveillance videos.