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12 March 2013 Evaluation of efficient high quality depth upsampling methods for 3DTV
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High quality 3D content generation requires high quality depth maps. In practice, depth maps generated by stereo-matching, depth sensingcameras, or decoders, have a low resolution and suffer from unreliable estimates and noise. Therefore depth post-processing is necessary. In this paper we benchmark state-of-the-art filter based depth upsampling methods on depth accuracy and interpolation quality by conducting a parameter space search to find the optimum set of parameters for various upscale factors and noise levels. Additionally, we analyze each method’s computational complexity with the big O notation and we measure the runtime of the GPU implementation that we built for each method.
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L. P. J. Vosters, C. Varekamp, and G. de Haan "Evaluation of efficient high quality depth upsampling methods for 3DTV", Proc. SPIE 8650, Three-Dimensional Image Processing (3DIP) and Applications 2013, 865005 (12 March 2013);


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