Invention Application
- Patent Title: AUTOMATIC MULTI-MODALITY SENSOR CALIBRATION WITH NEAR-INFRARED IMAGES
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Application No.: US18905280Application Date: 2024-10-03
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Publication No.: US20250117029A1Publication Date: 2025-04-10
- Inventor: Tom Bu , Bingbing Zhuang , Manmohan Chandraker
- Applicant: NEC Laboratories America, Inc.
- Applicant Address: US NJ Princeton
- Assignee: NEC Laboratories America, Inc.
- Current Assignee: NEC Laboratories America, Inc.
- Current Assignee Address: US NJ Princeton
- Main IPC: G05D1/86
- IPC: G05D1/86 ; G05D1/242 ; G05D1/243 ; G05D107/60 ; G05D111/67

Abstract:
Systems and methods for automatic multi-modality sensor calibration with near-infrared images (NIR). Image keypoints from collected images and NIR keypoints from NIR can be detected. A deep-learning-based neural network that learns relation graphs between the image keypoints and the NIR keypoints can match the image keypoints and the NIR keypoints. Three dimensional (3D) points from 3D point cloud data can be filtered based on corresponding 3D points from the NIR keypoints (NIR-to-3D points) to obtain filtered NIR-to-3D points. An extrinsic calibration can be optimized based on a reprojection error computed from the filtered NIR-to-3D points to obtain an optimized extrinsic calibration for an autonomous entity control system. An entity can be controlled by employing the optimized extrinsic calibration for the autonomous entity control system.
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