Piece-wise linear function estimation for platelet-based depth maps coding using edge detection

Dorsaf Sebai; Faten Chaieb; Khaled Mammou; Faouzi Ghorbel

doi:10.1117/12.909286

30 January 2012 Piece-wise linear function estimation for platelet-based depth maps coding using edge detection

Dorsaf Sebai, Faten Chaieb, Khaled Mammou, Faouzi Ghorbel

Proceedings Volume 8290, Three-Dimensional Image Processing (3DIP) and Applications II; 82901C (2012) https://doi.org/10.1117/12.909286
Event: IS&T/SPIE Electronic Imaging, 2012, Burlingame, California, United States

Abstract

Many researches on efficient depth maps coding issues have been carried out giving particular attention to sharp edge preservation. Platelet-based coding method is an edge-aware coding scheme that uses a segmentation procedure based on recursive quadtree decomposition. Then, the depth map is modeled using piecewise linear platelet and wedgelet functions. However, the estimation of these functions is a computationally expensive task making the platelet-based techniques not adapted to online applications. In this paper, we propose to exploit edge detection in order to reduce the encoding delay of the platelet/wedgelet estimation process. The proposed approach shows significant gain in terms of encoding delay, while providing competitive R-D performances w.r.t. the original platelet-based codec. The subjective evaluation shows significant less degradation along sharp edges.

Citation Download Citation

Dorsaf Sebai, Faten Chaieb, Khaled Mammou, and Faouzi Ghorbel "Piece-wise linear function estimation for platelet-based depth maps coding using edge detection", Proc. SPIE 8290, Three-Dimensional Image Processing (3DIP) and Applications II, 82901C (30 January 2012); https://doi.org/10.1117/12.909286

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