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- W4318311036 abstract "Holes are common and important feature information in sheet metal parts and play a decisive role in product production and assembly. The 3D contour reconstruction method based on passive binocular vision has been widely used in hole measurement due to its high accuracy and robustness. It can obtain dimensional data such as diameter and center of round holes, but there are still problems in measurement accuracy and integrity, and it is difficult to accurately measure special-shaped holes. Aiming at these issues, a fringe projection-based 3D contour measurement method for holes on sheet metal parts is proposed. In this method, two constant movements are performed on the extracted contour curve to the surrounding area, and the 3D contour points can be reconstructed according to the phase matching. Therefore, the real 3D contour is reconstructed inversely according to the corresponding points of the previous two reconstructed contours. With this method, contours only need to be extracted on one image, so it can reduce the effect of inconsistency in contour extraction. In addition, the accuracy and integrity of the 3D contour can be guaranteed by using high-quality phase matching of the sheet metal area. The experimental results show that this method can achieve accurate and complete 3D contour reconstruction for sheet metal holes of various shapes, and the accuracy can reach 0.08mm." @default.
- W4318311036 created "2023-01-28" @default.
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- W4318311036 date "2023-01-27" @default.
- W4318311036 modified "2023-10-14" @default.
- W4318311036 title "Fringe projection based 3D contour measurement method for holes on sheet metal parts" @default.
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- W4318311036 doi "https://doi.org/10.1117/12.2666806" @default.
- W4318311036 hasPublicationYear "2023" @default.
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