A method for position and posture calculation of stamping parts by polarization vision

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A method for position and posture calculation of stamping parts by polarization vision

Tan, Zhiying / Zhao, Baolai / Xu, Xiaobin / Fei, Zhongwen / Sha, Liuli / Wu, Fan / Wang, Zilong

Polarization is steadily attracting attention in machine vision due to its ability to capture the information not readily available in standard color or greyscale camera. In this paper, the degree of polarization image and intensity image are used to calculate the position and posture of stamping parts. First, the degree of polarization image and intensity image were acquired from polarization camera. Canny edge operator is used to filter the polarization degree image to get the edge image. Morphological analysis and connected domain statistics are performed on the edge image, and location holes are extracted from the connected domain according to the geometric characteristics. Combined with the extracted location holes region, the obtained polarization intensity image is segmented by local threshold, and the edge contour of the location hole is extracted and the coordinates of the center point are calculated.

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Title :

A method for position and posture calculation of stamping parts by polarization vision

Contributors:

Tan, Zhiying (author) / Zhao, Baolai (author) / Xu, Xiaobin (author) / Fei, Zhongwen (author) / Sha, Liuli (author) / Wu, Fan (author) / Wang, Zilong (author)

Conference:

AOPC 2020: Optics Ultra Precision Manufacturing and Testing ; 2020 ; Beijing,China

Published in:

Proc. SPIE ; 11568

Publication date :

2020-11-05

ISBN :

9781510639577

ISSN :

0277-786X

DOI :

https://doi.org/10.1117/12.2575114