Methods and apparatus for 3D camera positioning using a 2D vanishing point grid

摘要

Methods and apparatus for three-dimensional (3D) camera positioning using a two-dimensional (2D) vanishing point grid. A vanishing point grid in a scene and initial camera parameters may be obtained. A new 3D camera may be calculated according to the vanishing point grid that places the grid as a ground plane in a scene. A 3D object may then be placed on the ground plane in the scene as defined by the 3D camera. The 3D object may be placed at the center of the vanishing point grid. Once placed, the 3D object can be moved to other locations on the ground plane or otherwise manipulated. The 3D object may be added as a layer in the image.

主权项

1. A method, comprising
performing, by one or more computing devices: obtaining a two dimensional (2D) vanishing point grid and initial camera parameters for a 2D scene, the vanishing point grid specified by grid corners of a ground plane; calculating a three-dimensional (3D) camera according to the vanishing point grid, the 3D camera placing the vanishing point grid as the ground plane in the 2D scene; and positioning a 3D object on the ground plane of the 2D scene as defined by the 3D camera, the 3D object being a rendered object not previously included in any 2D scene.