GEOMETRIC CALIBRATION PROCESSING METHOD AND DEVICE FOR CAMERA

摘要

Embodiments of the present invention provide a geometric calibration processing method and device for a camera. The method comprises: obtaining coordinates of a spatial point and coordinates of an image point, a panorama camera shoots the spatial point to obtain the image point corresponding to the spatial point, the spatial point being a point on a spatial coordinate system and the image point is a point on an image coordinate system; obtaining a panoramic camera imaging model, the panoramic camera imaging model being used for indicating a conversion relationship between a point on the spatial coordinate system and a point on an image coordinate system; and by using the coordinates of the spatial point, the coordinates of the image point and the panoramic camera imaging model, determining an external parameter of the panorama camera. In the solution, there is no defect that spatial points are coplanar according to a two-step calibration method and there is no defect that an initial value error is large because various distortion factors are not considered according to the calibration method put forwarded by Zhang Youzheng.