Optical stripe center line compensation method based on Gaussian filter

Dongyu Guo; Jiwen Cui

doi:10.1117/12.3032524

4 December 2024 Optical stripe center line compensation method based on Gaussian filter

Dongyu Guo, Jiwen Cui

Author Affiliations +

Proceedings Volume 13283, Conference on Spectral Technology and Applications (CSTA 2024); 1328303 (2024) https://doi.org/10.1117/12.3032524
Event: Conference on Spectral Technology and Applications (CSTA 2024), 2024, Dalian, China

Abstract

Optical strip centerline extraction is an important part of a linear structured light measurement system. However, in the actual detection, to reduce noise and smooth the optical strip, the optical strip centerline extraction needs to be filtered, and the current Gaussian filter is used in image filtering. In this paper, an optical strip centerline compensation method based on a Gaussian filter is proposed. Firstly, the image Gaussian filter is qualitatively analyzed from the analytical and graphic directions, and then the approximate linear relationship between the offset of the optical strip centerline and the standard deviation of the filter as well as the shape of the optical strip is determined by numerical simulation. Through simulation and experiment, it is proved that the linear image filter compensation method can effectively compensate the offset of the center line of the optical strip by Gaussian filter, reduce the error of the optical strip center extraction, and improve the repeatability and accuracy of the measurement results.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Dongyu Guo and Jiwen Cui "Optical stripe center line compensation method based on Gaussian filter", Proc. SPIE 13283, Conference on Spectral Technology and Applications (CSTA 2024), 1328303 (4 December 2024); https://doi.org/10.1117/12.3032524

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KEYWORDS

Gaussian filters

Image filtering

Tunable filters

Optical filters

Image processing

Digital filtering

Correlation coefficients

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