OPENTECHNICAL PUBLICATION
OT-2026-000000197

Real-time three-dimensional shape measurement system and shape measurement method using diagonal line pattern irradiation method

Published: 2026-09-15T19:02:35.994013Z
Permanent URL: https://opentechnical.org/p/OT-2026-000000197
Categories: Sensors, Controls & Machine Vision > Position and Presence Sensing

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ABSTRACT

The present disclosure relates to relates to a system and method for measuring
a real-time three dimensional shape using a diagonal fringe pattern.
Particularly, in the deflectometry applied to real-time three dimensional
shape measurement of freeform surfaces, a system for acquiring a real-time
three dimensional phase using a diagonal fringe pattern includes: a pattern
generation portion that generates a single-direction pattern in the diagonal
direction and project the generated pattern onto a measurement object; a
detector that obtains an image of a deformed pattern reflected from the
measurement object; and a phase acquisition portion that partially
differentiates and integrates a phase of the diagonal pattern in the x axis
direction and y axis direction respectively, to obtain an x axis direction
phase component and a y direction phase component.

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OpenTechnical publication OT-2026-000000197
Published 2026-09-15T19:02:35.994013Z
https://opentechnical.org/p/OT-2026-000000197