Depth map upsampling using depth local features. Issue 3 (1st January 2014)

• Record Type: Journal Article
• Authors: Kang, Y.S.; Lee, S.B.; Ho, Y.S.
• Is Part Of: Electronics letters. Volume 50:Issue 3(2014)
• Page Start: 170
• Page End: 171
• Publication Date: 2014-01-01
• Subjects: feature extraction -- image colour analysis -- image resolution -- Markov processes; depth upsampling approach -- belief propagation -- high‐resolution depth map -- MRF‐based depth upsampling -- Markov random field -- energy function -- colour image -- low‐resolution depth map -- depth variance -- depth discontinuity -- depth local features -- depth map upsampling method; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2013.3956
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A depth map upsampling method using depth local features is proposed. Depth discontinuity and depth variance are extracted from a low‐resolution depth map and a colour image as the depth local features. They are incorporated into an energy function for the Markov random field (MRF)‐based depth upsampling. The high‐resolution depth map is obtained by optimising the energy function using belief propagation. The experimental results show that the proposed method outperforms other depth upsampling approaches in terms of the bad pixel rate.