Invention Grant
- Patent Title: Method and apparatus for automatic calibration in surrounding view systems
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Application No.: US14283508Application Date: 2014-05-21
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Publication No.: US09661319B2Publication Date: 2017-05-23
- Inventor: Shuqing Zeng , Wende Zhang , Jinsong Wang
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Quinn IP Law
- Main IPC: H04N9/47
- IPC: H04N9/47 ; H04N7/18 ; H04N17/00 ; G06K9/00 ; G06K9/46 ; H04N5/262 ; H04N5/265 ; B60R1/00 ; G06T7/00

Abstract:
An embodiment contemplates a method of calibrating multiple image capture devices of a vehicle. A plurality of image capture devices having different poses are provided. At least one of the plurality of image capture devices is identified as a reference device. An image of a patterned display exterior of the vehicle is captured by the plurality of image capture devices. The vehicle traverses across the patterned display to capture images at various instances of time. A processor identifies common landmarks of the patterned display between each of the images captured by the plurality of image capture devices and the reference device. Images of the patterned display captured by each of the plurality of image devices are stitched using the identified common landmarks. Extrinsic parameters of each image capture device are adjusted relative to the reference device based on the stitched images for calibrating the plurality of image capture devices.
Public/Granted literature
- US20150341628A1 METHOD AND APPARATUS FOR AUTOMATIC CALIBRATION IN SURROUNDING VIEW SYSTEMS Public/Granted day:2015-11-26
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