Patent Document ID: 9661319
Application ID: 14283508
Patent Status: 1

Claim One:
1. A method of calibrating multiple image capture devices of a vehicle, the method comprising: providing a plurality of image capture devices having different poses, at least one of the plurality of image capture devices being identified as a reference device; capturing an image of a patterned display exterior of the vehicle by the plurality of image capture devices, the patterned display including multiple landmarks of known positions, each image capture device capturing at least a portion of the patterned display; traversing the vehicle across the patterned display to capture images at various instances of time by the plurality of image capture devices; identifying, by a processor, common landmarks of the patterned display between each of the images captured by the plurality of image capture devices and the reference device; stitching images of the patterned display captured by each of the plurality of image capture devices using the common landmarks; and adjusting extrinsic parameters of each image capture device relative to the reference device based on the stitched images for calibrating the plurality of image capture devices, wherein identifying common landmarks of the patterned display includes identifying correspondence within the patterned display between the images captured by the plurality of image capture devices and the reference device, and wherein identifying correspondence within the patterned display includes at least one of: identifying corners of an outer boundary of the patterned display, identifying common edges that distinguish patterns within the patterned display among each of the captured images, or identifying common points generated by common intersecting edges within the patterned display.