On-Vehicle Camera System and Image Processing Method

An image processing method executed by an image processing system including

• a computation device that performs predetermined computation processing and a storage device that is accessible by the computation device, the image processing method comprising:
• an image acquisition step of acquiring, by the computation device, a plurality of images captured by a plurality of cameras arranged so that there is an overlapping imaging region where imaging regions at least partially overlap;
• a representative distance calculation step of calculating, by the computation device, a posture change of each camera on a basis of a change in a posture of a host vehicle;
• a movement amount computation step of finding, by the computation device, an amount of change in a position of a feature point in the overlapping imaging region of the plurality of images captured by the plurality of cameras;
• and
• a three-dimensional information acquisition step of reducing, by the computation device, the images on a basis of the amount of change in the position of the feature point and using the reduced images to acquire three-dimensional information of the overlapping imaging region.