High-precision parameter-free optical distortion measurement and correction via digital image correlation

Abstract

Optical distortions can significantly impact system performance, especially when dealing with asymmetrical distortions that traditional correction models cannot adequately describe. This study introduces Digital Image Correlation (DIC) as a non-parametric, high-precision method for measuring and correcting these distortions. Simulation results reveal the effectiveness of this method in achieving correction within 0.02 pixels. Validation in both macro and micro experimental settings confirms the widespread applicability of DIC. This research provides a fair and efficient solution for correcting optical systems, enabling precise measurement and imaging in practical scenarios. The method consistently performs well in simulations and real-world experiments, suggesting a feasible and promising approach to address the challenges posed by asymmetrical optical distortions.