obtaining an intrinsic parameter of a camera;

obtaining an extrinsic 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;

obtaining second image coordinates of a first target in a first image shot by the camera;

obtaining image information of the first target, wherein the first target comprises a vehicle;

querying for a feature parameter of the vehicle based on the image information of the first target;

obtaining a first physical transformation matrix corresponding to the extrinsic parameter based on the extrinsic parameter;

obtaining a first intrinsic parameter matrix of the camera based on the intrinsic parameter;

performing coordinate transformation on the second image coordinates, the first physical transformation matrix, and the first intrinsic parameter matrix to obtain obtaining second world coordinates; and

obtaining third world coordinates of the first target based on the feature parameter, a height of the camera, a location of the camera, and the second world coordinates.