公开(公告)号：KR100369941B1

公开(公告)日：2003-01-30

申请号：KR1019990022152

申请日：1999-06-15

Applicant: 한국전자통신연구원

Inventor： 최이배 ,  정연구 ,  김승우 ,  오정택

IPC: G01B9/00

Abstract: PURPOSE: A method for compensating measurement error in phase-shifting project moire is provided to improve the accuracy of the three dimensional shape measurement of the whole system by compensating phase distortion error of the phase-shifting project moire. CONSTITUTION: A method for compensating measurement error in phase-shifting project moire includes the steps of obtaining a wavelength become longer than the original wavelength by generating beat phenomenon of the two wavelengths having similar characteristic value, calculating order of moire pattern by using the long wavelength generated by the beat, obtaining two equivalent wavelengths by using two grids having different pitch, extracting order of moire pattern phase about height of a measuring point(28) based on the short equivalent wavelength, and calculating the height of the measuring point from the extracted order.

Abstract translation: 目的：通过补偿移相项目莫尔相位失真误差，提出了一种补偿移相项目莫尔测量误差的方法，以提高整个系统三维形状测量的准确性。 本发明公开了一种补偿相移项目莫尔测量误差的方法，包括以下步骤：通过产生具有相似特征值的两个波长的跳动现象，获得波长变得比原始波长更长的波长，通过使用长波长 通过使用具有不同间距的两个网格获得两个等效波长，基于短等效波长提取关于测量点（28）的高度的莫尔图案相位的次序，并且从提取的图像中计算测量点的高度 订购。

公开(公告)号：KR1020010002383A

公开(公告)日：2001-01-15

申请号：KR1019990022152

申请日：1999-06-15

Applicant: 한국전자통신연구원

Inventor： 최이배 ,  정연구 ,  김승우 ,  오정택

IPC: G01B9/00

Abstract: PURPOSE: A method for compensating measurement error in phase-shifting project moire is provided to improve the accuracy of the three dimensional shape measurement of the whole system by compensating phase distortion error of the phase-shifting project moire. CONSTITUTION: A method for compensating measurement error in phase-shifting project moire includes the steps of obtaining a wavelength become longer than the original wavelength by generating beat phenomenon of the two wavelengths having similar characteristic value, calculating order of moire pattern by using the long wavelength generated by the beat, obtaining two equivalent wavelengths by using two grids having different pitch, extracting order of moire pattern phase about height of a measuring point(28) based on the short equivalent wavelength, and calculating the height of the measuring point from the extracted order.

Abstract translation: 目的：提供一种补偿相移项目云纹测量误差的方法，通过补偿相移项目云纹的相位失真误差，提高整个系统三维形状测量的精度。 构成：用于补偿相移项目云纹测量误差的方法包括通过产生具有相似特征值的两个波长的拍子现象来获得波长变得比原始波长长的步骤，通过使用长波长计算莫尔图案的顺序 通过使用具有不同间距的两个栅格获得两个等效的波长，基于短等效波长提取关于测量点（28）的高度的莫尔图案相位的次序，并且从提取的测量点计算测量点的高度 订购。