Research on Laser Ranging Image Processing Method Captured by CMOS

Zhao Xue; Zhang Xunfang; Tang Rufeng; Zhang Haitao; Li Zhulian

Astronomical Research and Technology > 2018 > 15(4): 404-412.

Zhao Xue, Zhang Xunfang, Tang Rufeng, Zhang Haitao, Li Zhulian. Research on Laser Ranging Image Processing Method Captured by CMOS[J]. Astronomical Research and Technology, 2018, 15(4): 404-412.

Citation:

Zhao Xue, Zhang Xunfang, Tang Rufeng, Zhang Haitao, Li Zhulian. Research on Laser Ranging Image Processing Method Captured by CMOS[J]. Astronomical Research and Technology, 2018, 15(4): 404-412.

Citation:

Zhao Xue, Zhang Xunfang, Tang Rufeng, Zhang Haitao, Li Zhulian. Research on Laser Ranging Image Processing Method Captured by CMOS[J]. Astronomical Research and Technology, 2018, 15(4): 404-412.

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Research on Laser Ranging Image Processing Method Captured by CMOS

1. Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China

More Information

Received Date: January 01, 2018
Revised Date: March 04, 2018
Available Online: November 20, 2023

Graphical Abstract

Abstract

Abstract

Due to the CMOS camera used in Yunnan Observatory 53cm binocular laser ranging system, space target ranging echo rate and ranging success rate has been greatly improved. On the basic of analyzing the CMOS digital image information of laser ranging, an optimized image processing and laser light point feature extraction algorithm is proposed, which has efficiently achieved laser light point recognition and target centroid coordinate extraction. Median filter and average filter remove noise in the image; the Otsu method calculates the thresholds to realize image binarization and the Roberts operator is selected to detect the edge; linear fitting using least squares method solves the light point coordinates and calculates the position deviation. The results have important implications for further research in the application of CMOS camera in the 53cm binocular laser ranging system.
- Laser ranging,
- Image segmentation,
- Edge detection,
- Linear fitting,
- Laser light point recognition

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References (16)

References

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