Mounting angle detection device for in-vehicle camera, mounting angle calibration device, and mounting angle detection method

摘要

A mounting angle detection device converts, into a bird's-eye view image, an image captured of the ground on which a target marking having two straight line parts parallel to each other and equal in width is marked, and searches for a mounting angle at which the two straight line parts in the bird's-eye view image are parallel to each other and equal in width. Even with a vehicle including an in-vehicle camera on the front or back, the mounting angle detection device detects an actual mounting angle of the camera and calibrates the mounting angle of the camera. The mounting angle detection device detects the mounting angle using, as the target marking, even a parking space that lacks a transverse line crossing the two straight line parts parallel to each other and equal in width, and calibrates the mounting angle to a correct mounting angle of the camera.