PROCÉDÉ DE BALAYAGE TRIDIMENSIONNEL FAISANT APPEL À PLUSIEURS LASERS À LONGUEURS D'ONDES DIFFÉRENTES, ET DISPOSITIF DE BALAYAGE

摘要

A three-dimensional scanning method including a plurality of lasers with different wavelengths is provided. A scanner that implements the three-dimensional scanning method comprises at least two fixed cameras and at least two laser projectors, the at least two laser projectors correspond to at least two different wavelengths, and a spatial position relationship between the two cameras is calibrated and known. The three-dimensional scanning method is as follows: according to 2D patterns of laser contour lines projected onto a surface of a scanned object captured by the two cameras, respectively identifying two-dimensional line sets at highlight centers, and then obtaining three-dimensional contour point cloud data according to triangulation and epipolar constraint. A scanner that implements the three-dimensional scanning method including a plurality of lasers with different wavelengths is also provided. The present invention has multiple different wavelengths and good applicability, increase reusability of a single scanner, and enhance cost-effectiveness.