Abstract
In this paper, we propose a subjective video quality assessment method called video quality ruler (VQR) that can be employed to determine the perceived quality of video sequences. The described method is an extension of the ISO 20462, which is a method to assess image quality. The VQR method provides an interface with a set of pictures. The subjects assess the video using these pictures as a scale and compare the subjective perceived video quality with their perceived quality. The pictures are calibrated to form a numerical scale in units of just noticeable differences (JNDs), which allows to analyze and compare both subjective video and image stimuli. To evaluate the effectiveness of the proposed method, we compare the VQR method with a well-used single stimulus (SS) method. The results show that proposed method can be used to quantify the overall video quality with higher efficiency and with a less biased results than the SS method.
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