Invention Grant
- Patent Title: Apparatus and methods to calibrate a stereo camera pair
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Application No.: US17837389Application Date: 2022-06-10
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Publication No.: US11763492B1Publication Date: 2023-09-19
- Inventor: Anurag Ganguli , Timothy P. Daly, Jr. , Mayank Gupta , Wenbin Wang , Huan Yang Chang
- Applicant: PlusAI, Inc.
- Applicant Address: US CA Cupertino
- Assignee: PlusAI, Inc.
- Current Assignee: PlusAI, Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Sheppard Mullin Richter & Hampton LLP
- Main IPC: G06T7/80
- IPC: G06T7/80 ; G06T7/593 ; H04N13/239 ; H04N13/00 ; B60W60/00

Abstract:
In some embodiments, a method includes receiving a first image and a second image from a stereo camera pair. The method includes selecting a first row of pixels from the rectified image and a set of rows of pixels from the second image and comparing the first row of pixels with each row of pixels from the set of rows of pixels to determine disparity values. The method includes determining a pair of rows of pixels having the first row of pixels and a second row of pixels from the set of rows of pixels. The pair of rows of pixels has an offset no greater than an offset between the first row of pixels and each row of pixels from remaining rows of pixels. The method includes adjusting, based on the offset, the relative rotational position between the first stereo camera and the second stereo camera.
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