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A Study on Reducing Errors in Scanning Object and Registration using a Laser Scanner  

홍성균 (전북대학교 대학원)
김연술 (전북대학교 대학원)
이희관 (전북대학교 자동차부품금형기술혁신센터)
김형찬 (한국생산기술연구원)
양균의 (전북대학교 기계항공시스템공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.20, no.9, 2003 , pp. 197-204 More about this Journal
Abstract
This study proposes a method to reduce errors in scanning object and registration using a laser scanner. The method consists of 3 stages. First, there is an error induced by the difference of the distance between the probe and the object. It is possible to reduce the error by planning a scanning strategy: object setting, scan path. Second, the scan data of the tooling ball affects calculating the tooling ball center. A z-direction compensation is given to calculate more accurate registration points. Third, three points are used to determine a coordinate transformation on each frame. The maximum error usually lies on the third tooling ball in the conventional merging method. LSM (Least Square Method) is applied to a coordinate transformation to reduce the registration error.
Keywords
Laser scanner; Tooling ball; Registration; Reverse engineering;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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