Times Change, Stalling Stays: Subjective Quality Assessment over Time of Stalling in Autostereoscopic 3D Video Services

The interruption of video playback continuity, also identified from users' perspective as rebuffering or stalling, is one of the key phenomena that can hinder user experience during streaming video services. Its subjective observation, however, may change over time, similarly to most human factors. In this paper we present the results of a research designed to investigate how the perception of rebuffering during video streams varies over time, and how it correlates with the perceptual abilities of individuals. The subjective tests were performed on an autostereoscopic, glasses-free 3D display, as our experiment also studies the depth distance and thus the perceived size of objects in video content with a given motion during stalling events.