3D reconstruction method, 3D reconstruction equipment and electronic equipment

摘要

PROBLEM TO BE SOLVED: To provide an apparatus, a method and an electronic device capable of highly accurate three-dimensional reconstruction in the field of map technology. A three-dimensional reconstruction method acquires a pre-collected image sequence, acquires a nominal internal parameter of a camera for collecting the image sequence, and an initial value of a preset distortion coefficient, and changes the distortion coefficient of the camera. A range is calculated, 3D reconstruction is performed on the image sequence based on the nominal internal parameters, the initial value of the distortion coefficient, and the distortion coefficient fluctuation range, and the visual point group acquired in the process of 3D reconstruction is performed. And optimize the camera position and orientation. [Effect] Three-dimensional reconstruction can be performed on the image sequence based on the nominal internal parameters, the initial value of the distortion coefficient, and the distortion coefficient fluctuation range, and the internal parameters of the camera are not calibrated. Realize 3D reconstruction and further expand the scope of application of 3D reconstruction technology. [Selection diagram] Fig. 1