Technology of Graphic & Image
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App. Res. of Comp. Printed Article
Vol. 38, 2021 No. 11
3472-3477

Depth map super resolution based on dual mode joint trilateral filter

Yang Shuyuan1a,2
Cao Ning2
Guo Bin1a,2
Yan An1b
Zhu Jing1a,2
1. a. College of Computer & Information Engineering, b. Information Engineering Technology Research Center, Xinjiang Agricultural University, Urumqi 830052, China
2. School of Computer & Information, Hohai University, Nanjing 210098, China
DOI: 10.19734/j.issn.1001-3695.2021.02.0075

Abstract

Color-guided depth super resolution is one way for improving the quality or resolution of the low resolution depth image, which utilizes an additional aligned high-resolution color image as assistance. However, if the smooth regions have rich color texture or the color edges do not align well with the depth edges, artifacts including texture copying and edge blurring may occur. In view of these artifacts, the paper proposed a novel dual mode joint trilateral filter(DMJTF) method for color-guided depth map super resolution. This method built an edge image pyramid dictionary by a single low-resolution depth image, and then got a high-resolution edge image by constructing a MRF model. It used the edge map as a guidance to decide when to change the filter mode, one mode was for the pixels on the edges, and the other was for the pixels in the smooth regions. Experimental results in both qualitative and quantitative aspects demonstrate the effectiveness of our approach over prior depth map upsampling works, which alleviates artifacts introduced by color image and preserves sharp edges well.

Foundation Support

新疆维吾尔自治区高校科研计划项目(XJEDU2021Y016)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2021.02.0075
Publish at: Application Research of Computers Printed Article, Vol. 38, 2021 No. 11
Section: Technology of Graphic & Image
Pages: 3472-3477
Serial Number: 1001-3695(2021)11-048-3472-06

Publish History

[2021-11-05] Printed Article

Cite This Article

杨树媛, 曹宁, 郭斌, 等. 基于双模式联合三边滤波器的深度图像超分辨率方法 [J]. 计算机应用研究, 2021, 38 (11): 3472-3477. (Yang Shuyuan, Cao Ning, Guo Bin, et al. Depth map super resolution based on dual mode joint trilateral filter [J]. Application Research of Computers, 2021, 38 (11): 3472-3477. )

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  • Application Research of Computers Monthly Journal
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    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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