Systems and methods for detecting obstructions in a camera field of view

摘要

A system mounted on a vehicle for detecting an obstruction on a surface of a window of the vehicle, a primary camera (32) is mounted inside the vehicle (10) behind the window. The primary camera (32) is configured to acquire images of the environment through the window. A secondary camera (33) is focused on an external surface of the window, and operates to image the obstruction. A portion of the window, i.e. window region is subtended respectively by the field of view of the primary camera (32) and the field of view of the secondary camera (33). A processor processes respective sequences of image data from both the primary camera (32) and the secondary camera (33).