유원재 강영준 노형민 이동환 2024-01-21T04:39:20Z 2024-01-21T04:39:20Z 2021-09-06 2005-07 1225-9071 https://pubs.kist.re.kr/handle/201004/136302 Moir topography method is a well-known non-contacting 3-D measurement method. Recently, the automatic 3-D measurement by moir topography has been required, since the method was frequently applied to the engineering and medical fields. The 3-D measurement using projection moir topography is very attractive because of its high measuring speed and high sensitivity. In this paper, using two-wavelength method of projection moir topography was tested to measuring object with 2π-ambiguity problems. The experimental results prove that the proposed scheme is capable of finding absolute fringe orders, so that the 2π-ambiguity problems can be effectively overcome so as to treat large step discontinuities in measured objects. 한국정밀공학회 디지털 영사식 무아레를 이용한 3차원 형상 측정과 응용에 관한 연구(Ⅰ) A Study on 3-D Shape Measurement and Application by using Digital Projection Moire(Ⅰ) Article 2 한국정밀공학회지, v.22, no.7, pp.88 - 93 한국정밀공학회지 22 7 88 93 kci ART000966117 Projection moir method Virtual Grating 2pi-ambiguity Projection moir method Virtual Grating 2pi-ambiguity 영사식 무아레 방법 가상격자 2π모호성