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http://dx.doi.org/10.5573/ieek.2013.50.12.168

Integrated Color Matching in Stereoscopic Image by Combining Local and Global Color Compensation  

Shu, Ran (School of Electronics Engineering, Kyungpook National University)
Ha, Ho-Gun (School of Electronics Engineering, Kyungpook National University)
Kim, Dae-Chul (School of Electronics Engineering, Kyungpook National University)
Ha, Yeong-Ho (School of Electronics Engineering, Kyungpook National University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.12, 2013 , pp. 168-175 More about this Journal
Abstract
Color consistency in stereoscopic contents is important for 3D display systems. Even with a stereo camera of the same model and with the same hardware settings, complex color discrepancies occur when acquiring high quality stereo images. In this paper, we propose an integrated color matching method that use cumulative histogram in global matching and estimated 3D-distance for the stage of local matching. The distance between the current pixel and the target local region is computed using depth information and the spatial distance in the 2D image plane. The 3D-distance is then used to determine the similarity between the current pixel and the target local region. The overall algorithm is described as follow; First, the cumulative histogram matching is introduced for reducing global color discrepancies. Then, the proposed local color matching is established for reducing local discrepancies. Finally, a weight-based combination of global and local matching is computed. Experimental results show the proposed algorithm has improved global and local error correction performance for stereoscopic contents with respect to other approaches.
Keywords
color matching; stereoscopic image;
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