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Laser & Optoelectronics Progress, Volume. 55, Issue 5, 051001(2018)

Digital Speckle Correlation Method Based on Improved Curved Surface Fitting Method

Kaiqiang Li1,2,3,4、1; 2; 3; 4, Dan Zhu1,2,3,4、1; 2; 3; 4, and Xinxin Tong1,2,3、1; 3; 4;
Author Affiliations
  • 1 Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
  • 2 Key Laboratory of Opto-Electronic Information Processing, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
  • 2 University of Chinese Academy of Sciences, Beijing 100049, China
  • 3 Key Laboratory of Opto-Electronic Information Processing, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
  • 3 Liaoning Provincial Key Laboratory of Image Understanding and Computer Vision, Shenyang, Liaoning 110016, China
  • 4 Liaoning Provincial Key Laboratory of Image Understanding and Computer Vision, Shenyang, Liaoning 110016, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (13)
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    Figures & Tables(8)
    Schematic of the principle of digital speckle correlation method

    Fig. 1. Schematic of the principle of digital speckle correlation method

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    Schematic of the principle of sub-pixel localization algorithm based on curved surface fitting method

    Fig. 2. Schematic of the principle of sub-pixel localization algorithm based on curved surface fitting method

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    Speckle pattern A

    Fig. 3. Speckle pattern A

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    Curves of calculation results of sub-pixel displacement in four directions with six schemes. (a) 0°; (b) 90°; (c) 45°; (d) 135°

    Fig. 4. Curves of calculation results of sub-pixel displacement in four directions with six schemes. (a) 0°; (b) 90°; (c) 45°; (d) 135°

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    Mean error curves of calculation results of sub-pixel displacement in both directions with six schemes. (a) 0°; (b) 90°

    Fig. 5. Mean error curves of calculation results of sub-pixel displacement in both directions with six schemes. (a) 0°; (b) 90°

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    Mean relative error curves of calculation results of sub-pixel displacement in both directions with six schemes. (a) 0°; (b) 90°

    Fig. 6. Mean relative error curves of calculation results of sub-pixel displacement in both directions with six schemes. (a) 0°; (b) 90°

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    Mean error curves of calculation results of sub-pixel displacement in two directions and curves of calculation results of sub-pixel displacement in the other two directions for all four cases of scheme six. (a) 0°; (b) 90°; (c) 45°; (d) 135°

    Fig. 7. Mean error curves of calculation results of sub-pixel displacement in two directions and curves of calculation results of sub-pixel displacement in the other two directions for all four cases of scheme six. (a) 0°; (b) 90°; (c) 45°; (d) 135°

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    Mean error curves of the uniaxial tension. (a) Six schemes; (b) all four cases of scheme 6

    Fig. 8. Mean error curves of the uniaxial tension. (a) Six schemes; (b) all four cases of scheme 6

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    Kaiqiang Li, Dan Zhu, Xinxin Tong. Digital Speckle Correlation Method Based on Improved Curved Surface Fitting Method[J]. Laser & Optoelectronics Progress, 2018, 55(5): 051001

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    Paper Information

    Category: Image processing

    Received: Oct. 17, 2017

    Accepted: --

    Published Online: Sep. 11, 2018

    The Author Email: Kaiqiang Li (likaiqiang@sia.cn)

    DOI:10.3788/LOP55.051001

    Topics

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