Optics and Precision Engineering, Volume. 29, Issue 10, 2465(2021)
River underwater 3D vision measurement method
Fig. 2. Error analysis of 3D measurement due to image point extraction error
Fig. 3. Design of projection model in structured light system(a) The model of projection; (b)~(e) Multi-field center rotation projection models
Fig. 5. Example of stripe decoding rules for the first field measurement pattern
Fig. 6. World coordinates and imaging coordinates of corners on planar target with checkerboard
Fig. 9. Underwater image acquisition sequence (a)~(e) Measurement images of projection period with five fields
Fig. 11. Analysis of image and stripe extraction results in different turbid water (a0)~(a3) Images of different turbid water; (b0)~(b3) Binary images of different turbid water; (c0)~(c3) Stripe extraction in different turbid water; (d0)~(d3) Detail of stripe extraction
Fig. 12. 3D results of planar object under different turbid water(a0)~(a3) Measurement surfaces under clear water and three different turbid water; (b0)~(b3) Results of plane fitting residuals under clear water and three different turbid water
Fig. 13. Error of stripe extraction and 3D vision measurement due to different turbid water
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Li XU, Yong-hao ZHOU, Gui-ming LU, Jin-feng ZHOU, Fan ZHANG, Wen-yu LUO. River underwater 3D vision measurement method[J]. Optics and Precision Engineering, 2021, 29(10): 2465
Category: Information Sciences
Received: Mar. 18, 2021
Accepted: --
Published Online: Nov. 23, 2021
The Author Email: XU Li (xuli@ncwu.edu.cn), LU Gui-ming (lugm@ncwu.edu.cn)