Quality improving techniques for free-viewpoint DIBR

Luat Do; Sveta Zinger; Peter H. N. de With

doi:10.1117/12.838922

24 February 2010 Quality improving techniques for free-viewpoint DIBR

Luat Do, Sveta Zinger, Peter H. N. de With

Proceedings Volume 7524, Stereoscopic Displays and Applications XXI; 75240I (2010) https://doi.org/10.1117/12.838922
Event: IS&T/SPIE Electronic Imaging, 2010, San Jose, California, United States

Abstract

Interactive free-viewpoint selection applied to a 3D multi-view signal is a possible attractive feature of the rapidly developing 3D TV media. This paper explores a new rendering algorithm that computes a free-viewpoint based on depth image warping between two reference views from existing cameras. We have developed three quality enhancing techniques that specifically aim at solving the major artifacts. First, resampling artifacts are filled in by a combination of median filtering and inverse warping. Second, contour artifacts are processed while omitting warping of edges at high discontinuities. Third, we employ a depth signal for more accurate disocclusion inpainting. We obtain an average PSNR gain of 3 dB and 4.5 dB for the 'Breakdancers' and 'Ballet' sequences, respectively, compared to recently published results. While experimenting with synthetic data, we observe that the rendering quality is highly dependent on the complexity of the scene. Moreover, experiments are performed using compressed video from surrounding cameras. The overall system quality is dominated by the rendering quality and not by coding.

Citation Download Citation

Luat Do, Sveta Zinger, and Peter H. N. de With "Quality improving techniques for free-viewpoint DIBR", Proc. SPIE 7524, Stereoscopic Displays and Applications XXI, 75240I (24 February 2010); https://doi.org/10.1117/12.838922

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