System and method for simultaneous online LIDAR intensity calibration and road marking change detection
US12190607B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 21, 2021 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Nov 30, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30256
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system, method, and computer program for updating calibration lookup tables within an autonomous vehicle or transmitting roadway marking changes between online and offline mapping files is disclosed. A LIDAR sensor may be used for generating an online (rasterized) mapping file with online intensity values which are compared against a correlated offline (rasterized) mapping file having offline intensity values. The online intensity value may be used to acquire a lookup table having a normal distribution that is compared against the offline intensity value. The lookup table may be updated when the offline intensity value is within the normal distribution. Or the vehicle may transmit a roadway marking change when the offline intensity value is outside the normal distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.