Patent Document ID: 20090299684
Application ID: 12453946
Patent Status: 0

Claim One:
1. A method for calibrating multiple cameras installed on a vehicle, the method comprising: a first act of acquiring a two-dimensional image by imaging patterns around the vehicle by using multiple cameras on the vehicle, the patterns having a predetermined positional relationship with each other as a set of patterns on a road surface; a second act of performing coordinate conversion for converting coordinates of three or more points corresponding to the patterns in the two-dimensional image to the coordinates of patterns in a three dimensional space; a third act of calculating a camera position and a camera direction based on the converted coordinates of patterns; a fourth act of the camera position relative to the patterns around the vehicle on the road surface by moving the patterns in the converted space to the patterns around the vehicle on the road surface based on the relative positions between each of the corresponding patterns; and a fifth act of calculating a camera posture relative to the vehicle by moving the camera position relative to the patterns around the vehicle on the road surface to be matching to a camera installation position on the vehicle.