HANDHELD LARGE-SCALE THREE-DIMENSIONAL MEASUREMENT SCANNER SYSTEM SIMULTANEOUSLY HAVING PHOTOGRAMMETRIC AND THREE-DIMENSIONAL SCANNING FUNCTIONS

摘要

A handheld large-scale three-dimensional measurement scanner system simultaneously having photogrammetric and three-dimensional scanning functions includes: two cameras at fixed positions; at least one pattern projector; a photogrammetric module; and a three-dimensional scanning module, wherein at least one of the two cameras is a multipurpose camera that performs photogrammetry and three-dimensional scanning, wherein the photogrammetric module is configured to perform, by operating the multipurpose camera, global photogrammetry on a measured object and obtain three-dimensional coordinates of markers on a surface of the object, and wherein the three-dimensional scanning module is configured to perform, by operating the two cameras and the one pattern projector, three-dimensional scanning on the measured object by using the obtained markers as global positioning information of the measured object, and obtain three-dimensional contour data of the surface of the object. The present invention has photogrammetric and three-dimensional scanning functions simultaneously, a high degree of hardware integration, simplicity in operation, and excellent cost-performance ratio.