Volume 49 Issue 1
Feb.  2023
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Article Navigation >  Journal of Mine Automation  > 2023  >  49(1): 99-108
FAN Weiqiang, LI Xiaoyu, WENG Zhi, et al. Mine infrared image enhancement algorithm based on dual domain and ILoG-CLAHE[J]. Journal of Mine Automation，2023，49(1)：99-108.  doi: 10.13272/j.issn.1671-251x.18033
Citation: FAN Weiqiang, LI Xiaoyu, WENG Zhi, et al. Mine infrared image enhancement algorithm based on dual domain and ILoG-CLAHE[J]. Journal of Mine Automation，2023，49(1)：99-108.  doi: 10.13272/j.issn.1671-251x.18033
shu

Mine infrared image enhancement algorithm based on dual domain and ILoG-CLAHE

doi: 10.13272/j.issn.1671-251x.18033
  • 1.

    School of Electronic Information Engineering, Inner Mongolia University, Hohhot 010021, China

  • 2.

    School of Mechanical Electronic and Information Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China

  • 3.

    Yangchangwan Coal Mine, CHN Energy Ningxia Coal Industry Co., Ltd., Yinchuan 750408, China

  • 4.

    CGTEG China Coal Research Institute, Beijing 100013, China

  • Received Date: 2022-09-21
  • Rev Recd Date: 2022-12-31
    • Available Online: 2023-01-17
    Abstract
  • The complex working environment of mine leads to the degradation of the infrared image. The existing infrared image enhancement algorithm is easy to lose the scene details or causes the target edge blur while improving the signal-to-noise ratio and contrast. In order to solve the above problems, a mine infrared image enhancement algorithm based on dual domain decomposition coupling improved Gaussian Laplacian (ILoG) factor and contrast limited adaptive histogram equalization (CLAHE) (ILoG-CLAHE) is proposed. Firstly, the dual domain decomposition model is used to decompose the mine infrared image into a detailed sub-images containing high-frequency information and a basic sub-images containing low-frequency information. Secondly, the CLAHE algorithm is used to improve the brightness, contrast and definition of the basic sub-images to highlight the general features of the monitoring scene. The constructed ILoG operator is used to suppress noise and sharpen edges of detail sub-images and eliminate gradient inversion. Thirdly, the reconstructed image with improved image quality is obtained through the basic sub-image and detail sub-image after reconstruction processing. Finally, a Gamma correction function of gray level redistribution is designed to adjust the brightness of the reconstructed image. The mine infrared-enhanced image is obtained. The performance of the algorithm is analyzed by subjective vision and objective indicators. The results show that the overall visual effect and objective index of the mine infrared image enhanced by the mine infrared image enhancement algorithm based on dual domain and ILoG-CLAHE have been greatly improved. The comprehensive enhancement performance and robustness are better. Compared with the original mine infrared image and the six comparison algorithms, the comprehensive evaluation index values of this algorithm are increased by 0.28, 0.11, 0.23, 0.38, 0.57, 0.04, and 0.10 respectively. The six algorithms include CLAHE algorithm, bilateral filtering(BF) decomposition and CLAHE enhancement of basic sub-images (BF-CLAHE) algorithm, BF decomposition and Gamma transform (BF-Gamma) algorithm, guided filtering and Gamma transform (GF-Gamma) algorithm, adaptive histogram equalization(AHE) coupled Laplacian transform (AHE-LP) algorithm, and un-sharp mask(UM) based layer fusion (LF-UM) algorithm. The brightness, clarity and contrast of images are greatly improved, and noise suppression and edge sharpening are realized. It shows that the algorithm is suitable for the enhancement of infrared images in the complex working environment of mine.

     

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