Main > Chinese Journal of Lasers >  Volume 44 >  Issue 8 >  Page 804003 > Article
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  • Received: Mar. 13, 2017

    Accepted: --

    Posted: Aug. 1, 2017

    Published Online: Dec. 6, 2019

    The Author Email: Baohua Shan (shanbaohua@hit.edu.cn)

    DOI: 10.3788/CJL201744.0804003

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    Shan Baohua, Huo Xiaoyang, Liu Yang. A Stereovision Measurement Method Using Epipolar Constraint to Correct Digital Image Correlation Matching[J]. Chinese Journal of Lasers, 2017, 44(8): 804003

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  • measurement and metrology
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Epipolar geometry

Fig. 1. Epipolar geometry

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Process of stereo matching using DIC method

Fig. 2. Process of stereo matching using DIC method

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Correction of stereo matching on right image

Fig. 3. Correction of stereo matching on right image

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Stereo matching process of epipolar constraint correction

Fig. 4. Stereo matching process of epipolar constraint correction

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Binocular stereovision model

Fig. 5. Binocular stereovision model

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Specimen size

Fig. 6. Specimen size

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Specimen photo

Fig. 7. Specimen photo

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Stereovision system

Fig. 8. Stereovision system

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Experimental photo

Fig. 9. Experimental photo

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Extensometer and position of measured point

Fig. 10. Extensometer and position of measured point

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Comparison of displacement curves before and after correction of epipolar constraint. (a) 1# specimen; (b) 2# specimen; (c) 3# specimen; (d) 4# specimen

Fig. 11. Comparison of displacement curves before and after correction of epipolar constraint. (a) 1# specimen; (b) 2# specimen; (c) 3# specimen; (d) 4# specimen

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Comparison of displacement error curves before and after correction of epipolar constraint. (a) 1# specimen; (b) 2# specimen; (c) 3# specimen; (d) 4# specimen

Fig. 12. Comparison of displacement error curves before and after correction of epipolar constraint. (a) 1# specimen; (b) 2# specimen; (c) 3# specimen; (d) 4# specimen

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