Method, device, apparatus, and application for cloud-based trajectory map generation
US11761767B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2018 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Jul 26, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0274
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A cloud-based trajectory map generation method, device, apparatus and application. The method includes: acquiring first trajectory map data and second trajectory map data; performing a map-initializing treatment to align the two trajectory map data to obtain an initial value of a transformation relationship therebetween; interpolating the two trajectory map data to obtain corresponding data at preset interpolation points thereto; determining a residual equation based on the corresponding data at the preset interpolation points and the initial value of the transformation relationship to obtain an optimal solution of the transformation relationship based thereon; and generating a trajectory map based on the optimal solution of the transformation relationship. The trajectory map data are obtained using two different mapping schemes over a same moving trajectory, or using a same mapping scheme over two substantially identical moving trajectories, within a same region, which are optimized to thereby obtain a high-precision trajectory map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.