| 摘要 |
Provided are a camera-based positioning method, device, and positioning system. The positioning method comprises: a target object is photographed by means of a camera (11); according to the result of imaging the target object during photographing, as well as the focal length of the camera, the horizontal distance and horizontal angle between the target object and the camera are determined (12); according to the absolute position information of the camera, and the horizontal distance and horizontal angle between the target object and the camera, the absolute position information of the target object is determined (13). The positioning method and device and positioning system are capable of determining on the basis of a camera the absolute position of a target object, and do not require image training or arrangement of a reference object, and thus are easier to implement. |
