Paulien Coppens

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With the increasing adoption of smartphones, location-based social networks and applications gain widespread popularity. However, the disclosure of location information within these networks can cause privacy concerns among mobile users. In most of the research on privacy in location-based social networks, technology is researched as a context factor for(More)
With the introduction of 4K UHD video and display resolution, questions arise on the perceptual differences between 4K UHD and upsampled HD video content. In this paper, a striped pair comparison has been performed on a diverse set of 4K UHD video sources. The goal was to subjectively assess the perceived sharpness of 4K UHD and downscaled/upscaled HD(More)
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