서지주요정보
슬릿광을 이용한 3차원 자유곡면 형상의 비접촉식 자동측정 및 검사 = Automatic measurement and inspection of three dimensional sculptured surfaces by using slit beam
서명 / 저자 슬릿광을 이용한 3차원 자유곡면 형상의 비접촉식 자동측정 및 검사 = Automatic measurement and inspection of three dimensional sculptured surfaces by using slit beam / 박현구.
저자명 박현구 ; Park, Hyun-Goo
발행사항 [대전 : 한국과학기술원, 1994].
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소장정보

등록번호

8004237

소장위치/청구기호

학술문화관(문화관) 보존서고

DPE 94012

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

An optical measurement method of 3-dimensional surface profiles which is named the slit beam projection is suggested. This method is intended especially for noncontact and fast dizitization of clay models for die manufacturing. Its basic principles are based on geometric optics. A reconstruction algorithm of 3-dimensional profiles in the slit beam projection adopted the finite element method is newly suggested in which multiple calibration planes are used for acquiring the 3-dimensional coordinate of a point to be measured. Also, an image processing algorithm is newly suggested and practically implemented. The method is that the discrete intensity distributions of a column in a slit beam image fit into a polynomial function and then the coordinate with maximum intensity is detected by using numerical methods. The experimental results show that the slit beam projection is very effective in terms of measuring time and resolution being compared with conventional contact type dizitization technique using stylus probes. The 3-dimensional profile measurement system of live human faces, which was developed specially for Kumdori sculptor robot of the '93 Taejon Exposition, is presented and practically developed. The measurement system is based upon optical triangulation method such as the slit beam projection in which multiple slit beams are designed to simultaneously project onto the the face of a spectator in order to minimize measuring time. Images of the projected beams are then captured successively by CCD camera and processed in a microcomputer to reconstruct the whole profile of the face for automatic sculpturing by an industrial robot. A new method of moire topography is suggested in which a slit beam in a scanning mode to generate moire fringes. One remarkable feature of this method is that, as opposed to existing shadow and projection types, height differences between two consecutive fringes become constanst so that absolute fringe orders need not be identified. This advantage makes it possible to measure 3-dimensional surfaces profiles in an automatic manner simply by using a computer-aided image-processing technique.

서지기타정보

서지기타정보
청구기호 {DPE 94012
형태사항 xii, 118 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Hyun-Goo Park
지도교수의 한글표기 : 박승우
지도교수의 영문표기 : Seung-Woo Park
학위논문 학위논문(박사) - 한국과학기술원 : 정밀공학과,
서지주기 참고문헌 : p. 112-118
주제 Image processing.
Digital mapping.
Moire method.
Dies.
광학적 측정. --과학기술용어시소러스
슬릿. --과학기술용어시소러스
모아레. --과학기술용어시소러스
화상 처리. --과학기술용어시소러스
형상 측정. --과학기술용어시소러스
Quality control --Optical methods.
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