전자공학회논문지B (Journal of the Korean Institute of Telematics and Electronics B)
- 제33B권5호
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- Pages.94-101
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- 1996
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- 1016-135X(pISSN)
레이저 스캐너 3차원 계측에 있어서의 오차 보정
Error correction in laser scanner 3D measurement
초록
When objects are scanned spatially by a laser-beam and mechanical mirror scanners, spatial information can be obtained, and then it is improtant to accurately obtain the parameters relating the light source and camera positions, etc.. In this paper, a calibration technique is presented for correction of measuremtn errors in a three-dimensional laser scanner system with two galvanometers. First, a model of the systematic errors is developed based on the geometry of the scanning system. Calibration parameter values are then iteratively adjusted with coarse-fine search in order to minimize errors (evaluation function) between measured and computed distances. It is shown that this correction method results in measurement precision suitable for practical use.
키워드