Positioning Method and Apparatus

A positioning method comprising:

• obtaining an initial extrinsic parameter of a camera and an intrinsic parameter of the camera;
• and
• determining a first location of a special visual identifier in a parking lot based on the initial extrinsic parameter and the intrinsic parameter,
• wherein the special visual identifier positions a target in a shooting region of the camera.

An apparatus comprising:

• a memory configured to store instructions;
• and
• at least one processor coupled to the memory and configured to execute the instructions to:
• obtain an extrinsic parameter of a camera;
• obtain an intrinsic parameter of the camera based on first world coordinates of a plurality of points in a shooting region of the camera, first image coordinates of the points, and the intrinsic parameter;
• obtain second image coordinates of a target in an image shot by the camera;
• and
• obtain second world coordinates of the target based on the extrinsic parameter, the intrinsic parameter, and the second image coordinates.