6 March 2014 Depth map post-processing for depth-image-based rendering: a user study
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Abstract
We analyse the impact of depth map post-processing techniques on the visual quality of stereo pairs that contain a novel view. To this end, we conduct a user study, in which we address (1) the effects of depth map post­ processing on the quality of stereo pairs that contain a novel view and (2) the question whether objective quality metrics are suitable for evaluating them. We generate depth maps of six stereo image pairs and apply six different post-processing techniques. The unprocessed and the post-processed depth maps are used to generate novel views. The original left views and the novel views form the stereo pairs that are evaluated in a paired comparison study. The obtained results are compared with the results delivered by the objective quality metrics. We show that post-processing depth maps significantly enhances the perceived quality of stereo pairs that include a novel view. We further observe that the correlation between subjective and objective quality is weak.
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Matej Nezveda, Matej Nezveda, Nicole Brosch, Nicole Brosch, Florian Seitner, Florian Seitner, Margrit Gelautz, Margrit Gelautz, "Depth map post-processing for depth-image-based rendering: a user study", Proc. SPIE 9011, Stereoscopic Displays and Applications XXV, 90110K (6 March 2014); doi: 10.1117/12.2039771; https://doi.org/10.1117/12.2039771
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