Invention Grant
- Patent Title: Aggregation-based LIDAR data alignment
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Application No.: US17569948Application Date: 2022-01-06
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Publication No.: US12130390B2Publication Date: 2024-10-29
- Inventor: Xinyu Du , Yao Hu , Wende Zhang , Hao Yu
- 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
- Main IPC: G01S7/497
- IPC: G01S7/497 ; B60W60/00 ; G01S17/86 ; G01S17/89 ; G01S17/931

Abstract:
A LIDAR-to-vehicle alignment system includes a memory and alignment and autonomous driving modules. The memory stores points of data provided based on an output of one or more LIDAR sensors and localization data. The alignment module performs an alignment process including: based on the localization data; determining whether a host vehicle is turning; in response to the host vehicle turning; selecting a portion of the points of data; aggregating the selected portion to provide aggregated data; selecting targets based on the aggregated data; and based on the selected targets, iteratively reducing a loss value of a loss function to provide a resultant LIDAR-to-vehicle transformation matrix. The autonomous driving module: based on the resultant LIDAR-to-vehicle transformation matrix, converts at least the selected portion to at least one of vehicle coordinates or world coordinates to provide resultant data; and performs one or more autonomous driving operations based on the resultant data.
Public/Granted literature
- US20230213633A1 AGGREGATION-BASED LIDAR DATA ALIGNMENT Public/Granted day:2023-07-06
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