Method and assembly for creating a landmark map
US12175701B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2020 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Oct 15, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30244
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to the present invention there is provide a method of creating a landmark map comprising the steps of: capturing a plurality of frame using a camera, each frame comprising an image; assigning an image number which denotes the order in which each frame was taken; extracting features from all the images in the captured frames; assigning a distinct identifier to each respective feature which was extracted from the image belonging to the frame which was first captured; for each image belonging to the respective frames which was captured after the first frame was captured, carrying out the following steps: (i) computing a distance between, the location of each respective extracted feature in that image, and the location of each respective feature extracted from image belonging to a previously captured frame; and (ii) determining if said computed distance is less than, a predefined threshold distance; and if the computed distance is not less than said predefined threshold distance then assign that extracted feature the same identifier as is assigned to the extracted feature in the image belonging to the previously captured frame; if the computed distance is greater than the pre…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.