THREE-DIMENSIONAL SHAPE MEASURING METHOD AND THREE-DIMENSIONAL SHAPE MEASURING APPARATUS
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United States of America Patent
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Issued Date -
Jun 8, 2023
app pub date -
Dec 5, 2022
filing date -
Dec 6, 2021
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Abstract
A three-dimensional shape measuring method includes: a first step to: project first and second projection images on a target object, wherein the first projection images include row-direction stripe patterns different from each other, and the second projection images include column-direction stripe patterns different from each other, and obtain first and second captured images of the target object, wherein the first captured images are captured while the first projection images are projected, and the second captured images are captured while the second projection images are projected; a second step to identify a corresponding projection pixel of the first and second projection images, wherein the corresponding projection pixel corresponds to each of captured pixels of the first and second captured images; and a third step to identify a 3D shape of the target object based on a result of the second step.
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