Accurate image plane tilt correction using the bidirectional rotational symmetry correction (BRSC) method

Qijie Chen; Diyang Gu; Yiyong Liang; Jian Bai

doi:10.1117/12.3038585

4 November 2024 Accurate image plane tilt correction using the bidirectional rotational symmetry correction (BRSC) method

Qijie Chen, Diyang Gu, Yiyong Liang, Jian Bai

Author Affiliations +

Proceedings Volume 13237, Optical Design and Testing XIV; (2024) https://doi.org/10.1117/12.3038585
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Conference Poster

Abstract

High-precision optical path alignment is essential in modern optical systems, especially for high-resolution imaging and precision measurement. Misalignment of the image plane can lead to image distortion, adversely affecting overall image quality. Recent research has focused on algorithmic approaches for image tilt correction, but this paper proposes a Bidirectional Rotational Symmetry Correction (BRSC) method that combines mechanical adjustment with a contour detection algorithm for effective image plane tilt correction. The mechanical adjustment process involves bidirectional symmetry rotation of the image plane to achieve precise alignment. The edge contour detection algorithm enhances image processing by fitting an elliptical contour around detected features, enabling precise measurement of the contours. Experimental validation using a point diffraction interferometer (PDI) demonstrates the effectiveness of the proposed BRSC method in correcting image plane tilt.

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

Citation Download Citation

Qijie Chen, Diyang Gu, Yiyong Liang, and Jian Bai "Accurate image plane tilt correction using the bidirectional rotational symmetry correction (BRSC) method", Proc. SPIE 13237, Optical Design and Testing XIV, (4 November 2024); https://doi.org/10.1117/12.3038585

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