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The smooth motion parallax of light field displays is one of the most critical enablers of the glasses-free auto-stereoscopic 3D experience. This smoothness originates from an acceptable degree of angular resolution, which is derived from the number of views visualized in the given field of view. However, if human observers view the content without any movement, the requirement for angular resolution...
There is an ongoing debate in the research community over the improved visual quality of UHD video in comparison to the still widely-deployed HD standard. It is the inspiration of many scientific studies, yet UHD displays and services are continuously spreading on the consumer market. This paper presents the results of a subjective paired-comparison test with both upscaled HD and UHD video sequences,...
User experience of 3D visualization on light field displays depends on several technical and human factors. One of these factors is Region of Interest, which determines the properties of visualization, such as the level of zoom. In this paper we present the results of three experiments investigating the effect of level of zoom on Quality of Experience. These experiments use different subjective quality...
In recent years, HTTP video streaming has become a dominant technology for multimedia content consumption. Frame freezing occurring in the video stream is considered one of the key factors affecting the perceptual visual quality at the client side. In this paper we provide an analysis of how frame freezing in 3D video streams is observed over time, addressing the question whether the user starts tolerating...
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...
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