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http://dx.doi.org/10.5909/JBE.2012.17.6.933

Depth Map Upsampling with Improved Sharpness  

Jang, Seungeun (Kangwon National University)
Lee, Dongwoo (Kangwon National University)
Kim, Sung-Yeol (Gwangju Institute of Science and Technology)
Choi, Hwang Kyu (Kangwon National University)
Kim, Manbae (Kangwon National University)
Publication Information
Journal of Broadcast Engineering / v.17, no.6, 2012 , pp. 933-944 More about this Journal
Abstract
In this paper, we propose a new method to convert a low-resolution depth map into its high-resolution one called distance transform-based bilateral upsampling. Since the proposed method controls the spatial domain weighting function based on distance transform values of the depth map, it increases the input depth map resolution while preserving edge sharpness. The proposed method is composed of three main steps: distance transform, spatial weighting control, and image interpolation. Experimental results show that our method outperforms the conventional bilateral upsampling in terms of the quality of output depth maps.
Keywords
depth map upsampling; bilateral filter; distance transform;
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