Method, apparatus, and system for removing outliers from road lane marking data
US11776282B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 2021 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Sep 25, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/202
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An approach is provided for removing outliers from road lane marking data (e.g., using two-phase filtering). The approach involves processing spatial data points representing a road lane into clusters, and filtering cluster(s) away from a main cluster from the clusters to generate an initial filtered data point set. The approach also involves calculating a degree of relationship among the data points of the initial filtered set based on a distance metric to generate group node(s) of the initial filtered set. The approach further involves for each group node, determining a probability that a spatial data point belongs in said each group node by comparing the spatial data point to a center of said each group node, and filtering the spatial data point from said each group node based on determining that the probability is less than a threshold to generate a final filtered data point set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.