Method, system, and computer program product for capturing a target image

A method for capturing a target image to be implemented by a system that includes an image capturing device, and a processing module electrically connected to the image capturing device, the image capturing device including a large field-of-view (FOV) camera, a small FOV camera disposed at one side of the large FOV camera and including a lens, and a beam steering device disposed at the same side as the small FOV camera and including a light reflector, said method comprising:

• the processing module controlling the large FOV camera to capture an initial image;
• in response to receipt of the initial image from the large FOV camera, the processing module identifying an object image of a target object in the initial image;
• the processing module obtaining position data related to a position of the target object relative to the large FOV camera in a physical space, dimension data related to a dimension of the target object, and distance data related to a distance between the target object and the large FOV camera based on the object image and the initial image;
• the processing module controlling the beam steering device to rotate the light reflector to a target angle based on the position data in order to make the light reflector redirect light reflected from the target object onto the lens of the small FOV camera;
• the processing module controlling the small FOV camera to adjust a focal length of the lens of the small FOV camera to a target focal length based on the dimension data and the distance data;
• and
• after controlling the beam steering device to rotate the light reflector to the target angle and controlling the small FOV camera to adjust the focal length of the lens of the small FOV camera to the target focal length, the processing module controlling the small FOV camera to capture a target image that is related to the target object based on the light reflected by the light reflector.