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Multiview autostereoscopic displays are considered as the future of 3DTV. However, these displays suffer from a high level of crosstalk, which negatively impacts quality of experience (QoE). In this paper, we propose a system to improve 3D QoE on multiview autostereoscopic displays. First, the display is characterized in terms of luminance distribution. Then, the luminance profiles are modeled using...
The goal of this paper is to survey existing quality assessment methodologies for Augmented Reality (AR) visualization and to introduce a methodology for subjective quality assessment. Methodologies to assess the quality of AR systems have existed since these technologies appeared. The existing methodologies typically take an approach from the fields they are used in, such as ergonomics, usability,...
Stereoscopic Quality of Experience (QoE) is the result of a complex combination of different influencing factors. Previously we had investigated the effect of factors such as scene content, camera baseline, screen size and viewing position on stereoscopic QoE using subjective tests. In this paper, we propose two objective metrics for predicting stereoscopic QoE using bottom-up and top-down approaches,...
In this paper, we investigate whether the presence of audio with different quality levels can influence the outcome of subjective visual quality assessment in a Digital Cinema setting. We asked the participants to judge the visual quality when watching an audiovisual content in a Digital Cinema environment and investigated whether the participants can neglect the presence and the quality of audio...
Scalable video coding is a promising solution for efficient video content distribution to users having heterogeneous network and terminal capabilities. Thanks to its inherent multidimensional adaptability, a scalable bit stream can be used to simultaneously transmit multiple video sequences having different bit rates to corresponding target users, without necessity of re-encoding or transcoding. In...
Stereo quality of experience (QoE) can be affected by many factors in three-dimensional (3D) media. We pay our attention to three main factors, namely scene content, camera baseline, and screen size, which were found to be the most significant influencing factors from our previous subjective tests. In order to estimate the QoE on stereoscopic presentations, this paper proposes a perceptual quality...
Video transcoding is an important step to enable interoperability between different networks, terminals, applications, and services for video communication. This paper studies the influence of typical video transcoding artifacts due to frame rate reduction and drift error on the subjective quality. Given a realistic dataset for a DVB-T to DVB-H transcoding scenario, the subjective quality before and...
Two video coding schemes with variable bit rates-JPEG 2000 and H.264/AVC-were compared in terms of perceived quality performance in a Digital Cinema environment. In this paper we describe in detail the procedure for a subjective quality assessment. The stimuli used were 10 seconds long color sequences at HD resolution (1920×1080 progressive), 30 fps, and YCbCr 4:2:0. We do not consider DCI-specified...
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