Technology of Graphic & Image
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App. Res. of Comp. Printed Article
Vol. 39, 2022 No. 6
1879-1885,1890

Multi-focus image fusion method combining linear sparse representation and image matting

Wang Jiwei
Qu Huaijing
Wei Yanan
Xu Jia
Zhang Zhisheng
Zhang Hanyuan
School of Information & Electric Engineering, Shandong Jianzhu University, Jinan 250101, China
DOI: 10.19734/j.issn.1001-3695.2021.09.0437

Abstract

Aiming at the problem of inaccurate information capture of focused/defocused boundary(FDB) by existing multi-focus image fusion methods, this paper proposed a new multi-focus image fusion method based on linear sparse representation and image matting. Firstly, the paper introduced a focus measure based on linear sparse representation, which used the linear relationship between the dictionary formed by the natural image and the input image in the local window to represent the focus information of the image by solving the linear coefficient. Then, it used the focus measure to obtain the focus map of the source image and a ternary map consisting of the focus area, the defocus area, and the unknown area including the FDB, further used the image matting technology to process the ternary image, to obtain a more accurate full-focus image. Finally, to further improve the quality of the fused image, it used the obtained full-focus image as a new dictionary to realize the iterative process of fusion, and obtained the final full-focus fused image after the set update times. Experimental results show that compared with the 11 most advanced multi-focus image fusion methods, the proposed method has better fusion performance and visual effect, and higher computational efficiency.

Foundation Support

国家自然科学基金资助项目(62003191)
山东省自然科学基金资助项目(ZR2014FM016)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2021.09.0437
Publish at: Application Research of Computers Printed Article, Vol. 39, 2022 No. 6
Section: Technology of Graphic & Image
Pages: 1879-1885,1890
Serial Number: 1001-3695(2022)06-048-1879-07

Publish History

[2021-12-16] Accepted Paper
[2022-06-05] Printed Article

Cite This Article

王纪委, 曲怀敬, 魏亚南, 等. 结合线性稀疏表示和图像抠图的多聚焦图像融合方法 [J]. 计算机应用研究, 2022, 39 (6): 1879-1885,1890. (Wang Jiwei, Qu Huaijing, Wei Yanan, et al. Multi-focus image fusion method combining linear sparse representation and image matting [J]. Application Research of Computers, 2022, 39 (6): 1879-1885,1890. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    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.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

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