Unwrapped phase correction for robust 3D scanning

Kam Dong-Uk; Kim Jeong Hee; Lee Kunwoo

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Unwrapped phase correction for robust 3D scanning

机译：鲁棒3D扫描的未包装相校正

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A temporal phase unwrapping method is proposed to generate an unwrapped phase map for a robust three-dimensional (3D) scan. The proposed algorithm seeks to improve the accuracy of the 3D data points obtained through the phase unwrapping process. By applying the k-nearest-neighbor search method, the error bound of the wrapped phase is controlled with improved flexibility. To achieve the desired scanning quality, a series of fringe patterns is generated with multiple phases at three different frequencies. For this method, the pattern is shifted by utilizing a six-step temporal phase unwrapping process. In this unwrapping process, the error bound is controlled by employing the k-nearest-neighbor search method and spatial comparison method to obtain an accurate fringe order. Through our correction method, the wrapped phases can be unwrapped more accurately and thus enhance the robustness of the scanning system compared to previous phase unwrapping methods. (C) 2019 Optical Society of America

机译：提出了一种时间相位展开方法以产生坚固的三维（3D）扫描的未包装相位映射。所提出的算法旨在提高通过相位展开过程获得的3D数据点的准确性。通过应用K-Collect-邻邻搜索方法，通过提高的灵活性来控制包装相位的误差。为了实现所需的扫描质量，在三个不同频率下具有多个相位产生一系列条纹图案。对于这种方法，通过利用六个时间相位展开过程来移动模式。在该展开过程中，通过采用K-Collectib邻的搜索方法和空间比较方法来获得准确的条纹顺序来控制误差绑定。通过我们的校正方法，可以更准确地揭开包装的相位，从而增强与先前的相位展开方法相比扫描系统的鲁棒性。（c）2019年光学学会

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来源
《Applied optics》 |2019年第14期|共9页
作者
Kam Dong-Uk; Kim Jeong Hee; Lee Kunwoo;
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Seoul Natl Univ Human Ctr CAD Lab Bldg 301 2F 1 Gwanak Ro Seoul 151742 South Korea;

Seoul Natl Univ Human Ctr CAD Lab Bldg 301 2F 1 Gwanak Ro Seoul 151742 South Korea;

Seoul Natl Univ Human Ctr CAD Lab Bldg 301 2F 1 Gwanak Ro Seoul 151742 South Korea;

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Unwrapped phase correction for robust 3D scanning

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