Monocular vision ranging method, storage medium, and monocular camera

A monocular vision ranging method, being applied to a monocular camera installed on a vehicle, the method comprising:

• calculating a first distance between a target and - e monocular camera, based on a geometric relationship between the monocular camera and the target;
• calculating a second distance between the target and the monocular camera, based on a size ratio of the target in a measurement image to a reference target in a corresponding reference image, wherein the size ratio comprises a height ratio or a width ratio, the measurement image is photographed by the monocular camera, and the reference image is photographed by the monocular camera at a reference distance from the monocular camera;
• evaluating credibilities of the first distance and the second distance, and determining weight values assigned to the first distance and the second distance, respectively, wherein, the higher the credibilities are, the higher the weight values are;
• and
• calculating a final distance between the target and the monocular camera, based on the first distance, the second distance, and the weight values respectively corresponding to the first distance and the second distance.