Method and system for inspecting a vehicle-mounted camera

1. Field of the Invention An optical axis direction, a distance measurement accuracy and so on are efficiently performed for quality assurance of a vehicle-mounted camera in cooperation of an image processing unit and a vehicle-mounted navigation control unit. In a vehicle monitoring system for imaging view ahead of the vehicle with the camera () installed in the vehicle body and for recognizing a running condition with the image processing unit (), the image processing unit measures an optical axis direction and a distance measurement accuracy to determine whether the camera quality is appropriate or not for quality assurance of the vehicle-mounted camera. The determined result is displayed on a monitor () of the vehicle mounted navigation control unit () to recommend adjustment of the camera. When failure is determined in the pass/fail determination of the optical axis direction, an attachment member having a shape, the optical axis direction by which is included in the correct range in the reference pattern of the recognized image, is selected from a variety of the attachment members prepared in advance, and replacement of the attachment member with the selected attachment member is recommended.