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Laser & Optoelectronics Progress, Volume. 61, Issue 14, 1415005(2024)

Pixel Coordinate Correction for Camera Offsets Based on Visual Localization Guidance

Zhao Tu, Jianfeng Zhong*, Wei Wei, Shoujiang Chi, Dongming Liu, Guiyong Guo, and Shuncong Zhong
Author Affiliations
  • Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, Fujian, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
    Equations (14)
    References (23)
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    Figures & Tables(12)
    Schematic of machine vision positioning guidance system

    Fig. 1. Schematic of machine vision positioning guidance system

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    Schematic of the camera offset pixel coordinate correction method

    Fig. 2. Schematic of the camera offset pixel coordinate correction method

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    Experimental setup

    Fig. 3. Experimental setup

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    Camera offset correction accuracy. (a) u-pixel correction error; (b) v-pixel correction error

    Fig. 4. Camera offset correction accuracy. (a) u-pixel correction error; (b) v-pixel correction error

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    Effect of initial depth information. (a) u-pixel correction error; (b) v-pixel correction error

    Fig. 5. Effect of initial depth information. (a) u-pixel correction error; (b) v-pixel correction error

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    Effect of the number of checkerboard arrays. (a) u-pixel correction error; (b) v-pixel correction error

    Fig. 6. Effect of the number of checkerboard arrays. (a) u-pixel correction error; (b) v-pixel correction error

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    Correction accuracy of depth information difference after camera offset. (a) u-pixel correction error; (b) v-pixel correction error

    Fig. 7. Correction accuracy of depth information difference after camera offset. (a) u-pixel correction error; (b) v-pixel correction error

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    Correction accuracy of depth information difference between camera offset and X-direction offset by 1 mm. (a) u-pixel correction error; (b) v-pixel correction error

    Fig. 8. Correction accuracy of depth information difference between camera offset and X-direction offset by 1 mm. (a) u-pixel correction error; (b) v-pixel correction error

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    Correction accuracy of depth information difference between camera offset and X-direction offset by 5 mm. (a) u-pixel correction error; (b) v-pixel correction error

    Fig. 9. Correction accuracy of depth information difference between camera offset and X-direction offset by 5 mm. (a) u-pixel correction error; (b) v-pixel correction error

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    Correction accuracy of depth information difference between camera offset and Y-direction offset by 1 mm. (a) u-pixel correction error; (b) v-pixel correction error

    Fig. 10. Correction accuracy of depth information difference between camera offset and Y-direction offset by 1 mm. (a) u-pixel correction error; (b) v-pixel correction error

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    Correction accuracy of depth information difference between camera offset and Y-direction offset by 5 mm. (a) u-pixel correction error; (b) v-pixel correction error

    Fig. 11. Correction accuracy of depth information difference between camera offset and Y-direction offset by 5 mm. (a) u-pixel correction error; (b) v-pixel correction error

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    Accuracy of offset correction when object feature surfaces are not parallel. (a) u-pixel correction error; (b) v-pixel correction error

    Fig. 12. Accuracy of offset correction when object feature surfaces are not parallel. (a) u-pixel correction error; (b) v-pixel correction error

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    Zhao Tu, Jianfeng Zhong, Wei Wei, Shoujiang Chi, Dongming Liu, Guiyong Guo, Shuncong Zhong. Pixel Coordinate Correction for Camera Offsets Based on Visual Localization Guidance[J]. Laser & Optoelectronics Progress, 2024, 61(14): 1415005

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    Paper Information

    Category: Machine Vision

    Received: Sep. 25, 2023

    Accepted: Dec. 21, 2023

    Published Online: Jul. 4, 2024

    The Author Email: Jianfeng Zhong (zhongjianfeng@fzu.edu.cn)

    DOI:10.3788/LOP232187

    CSTR:32186.14.LOP232187

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology