EVALUATING THE TASK DEPENDENCE OF EYE MOVEMENTS FOR COMPRESSED VIDEOS

The dependence of eye movements on the assigned task when a subject views an image/video is a topic of considerable interest. In the recent past, researchers have focused on how distortions in an image affect eye movements and fixations. Surprisingly little work has been done on how distortions in video affect the direction of gaze. Here we seek to evaluate how distortions in compressed video affects eye movements. We study the effect that two particular tasks (quality assessment and summarization) have on eye movements when subjects view videos. Further, we also evaluate the effect of the amount of distortion on eye movements conditioned on a particular task. The results from this study are relevant for researchers developing video quality assessment algorithms based on human eye moments. The results may also be useful for improving pooling strategies for quality indices.

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