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B-spline-assisted deflectometry with a concave mirror for large-order differences specular surface
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DOI：10.1016/j.optlaseng.2026.109838.png)
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Abstract
En 中文
• A concave mirror is introduced into the PMD system to extend the effective DOF. • An iterative feature-point localization using geometry and SUT traits. • A B-spline method for precise in-situ measurement of large-order specular surfaces.
Keywords:
concave mirror
B-spline
deflectometry
specular surface
iterative feature-point localization
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