Fast and Effective Region-based Depth Map Upsampling with Application to Location Map-Free Reversible Data Hiding

Main Article Content

Kuo-Liang Chung
Yu-Ling Tseng
Tzu-Hsien Chan
Ching-Sheng Wang

Abstract

In this paper, we rst propose a fast and eective region-based depth map upsampling method, and then propose a joint upsampling and location map-free reversible data hiding method, simpled called the JUR method. In the proposed upsampling method, all the missing depth pixels are partitioned into three disjoint regions: the homogeneous, semi-homogeneous, and non- homogeneous regions. Then, we propose the depth copying, mean value, and bicubic interpolation approaches to reconstruct the three kinds of missing depth pixels quickly, respectively. In the proposed JUR method, without any location map overhead, using the neighboring ground truth depth pixels of each missing depth pixel, achieving substantial quality, and embedding capacity merits. The comprehensive experiments have been carried out to not only justify the execution-time and quality merits of the upsampled depth maps by our upsampling method relative to the state-of-the-art methods, but also justify the embedding capacity and quality merits of our JUR method when compared with the state-of-the-art methods.

Keywords:
Bicubic interpolation, color plus depth video coding, depth map upsampling, depth no-synthesis-error, quality, reversible data hiding.

Article Details

How to Cite
Chung, K.-L., Tseng, Y.-L., Chan, T.-H., & Wang, C.-S. (2020). Fast and Effective Region-based Depth Map Upsampling with Application to Location Map-Free Reversible Data Hiding. Journal of Advances in Mathematics and Computer Science, 35(4), 24-45. https://doi.org/10.9734/jamcs/2020/v35i430268
Section
Original Research Article

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