No-reference video quality assessment based on human visual perception

Conducting video quality assessment (VQA) for user-generated content (UGC) videos and achieving consistency with subjective quality assessment are highly challenging tasks. We propose a no-reference video quality assessment (NR-VQA) method for UGC scenarios by considering characteristics of human visual perception. To distinguish between varying levels of human attention within different regions of a single frame, we devise a dual-branch network. This network extracts spatial features containing positional information of moving objects from frame-level images. In addition, we employ the temporal pyramid pooling module to effectively integrate temporal features of different scales, enabling the extraction of inter-frame temporal information. To mitigate the time-lag effect in the human visual system, we introduce the temporal pyramid attention module. This module evaluates the significance of individual video frames and simulates the varying attention levels exhibited by humans towards frames. We conducted experiments on the KoNViD-1k, LIVE-VQC, CVD2014, and YouTube-UGC databases. The experimental results demonstrate the superior performance of our proposed method compared to recent NR-VQA techniques in terms of both objective assessment and consistency with subjective assessment.