Jigang Wu, Jun Shao, Gen Zhou, Deqiang Yang, Yuan Cheng. Vibration Measurement of Thin-walled Parts Based on Binocular Vision and Matching and Tracking of Features[J]. Laser & Optoelectronics Progress, 2020, 57(10): 101103
- Laser & Optoelectronics Progress
- Vol. 57, Issue 10, 101103 (2020)
Fig. 1. Binocular vision measurement model
Fig. 2. Schematic of feature point matching and tracking
Fig. 3. Flow chart of binocular vision vibration measurement
Fig. 4. Experiment system
Fig. 5. Image preprocessing. (a) Select region of interest; (b) preprocessed image
Fig. 6. Vibration displacement time history of 1# feature point in different directions. (a) X-axis displacement; (b) Y-axis displacement; (c) Z-axis displacement
Fig. 7. Y-axis displacement spectrum of 1# feature point
Fig. 8. Comparison of calculated displacement and theoretical vibration displacement of the proposed method. (a) X-axis displacement; (b) Y-axis displacement; (c) Z-axis displacement
Fig. 9. Each axial displacement error of 1# feature point
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Table 1. Camera calibration results
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