Error Correction and Integration of Multidirectional Data in Laser Scanner 3D Measurement.

When objects are scanned spatially by a laser-beam and mechanical mirror scanners in order to obtain three-dimensional data, measurement errors are often a significant problem. This paper presents a systematic error model for a two-dimensional mirror scanner system. Parameter values are modified to reduce the difference between measured and calculated values. This correction shows that it is possible to compose a three-dimensional measurement system with enough precision for practical use. Furthermore, complete object data can be obtained without occlusion by combing scanner data from multiple directions.