Drawing matching tool
US11841924B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 22, 2021 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Jul 14, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/422
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure is directed to a software tool that engages in an image matching technique. In one implementation, the software tool (i) accesses a set of two-dimensional drawings representative of a construction project, (ii) determines multiple candidate pixel regions for each of the two-dimensional drawings, (iii) compares the candidate pixel regions to identify a set of landmark pixel regions that appear in the set of two-dimensional drawings at a threshold rate, (iv) compare a first subset of landmark pixel regions from a first two-dimensional drawing with a second subset of landmark pixel regions from a second two-dimensional drawing to identify matching landmark pixel regions, (v) project the first and second two-dimensional drawings onto a projection space such that a maximum number of the matching landmark pixel regions align, and (vi) determine an extent of similarity between the projected first and second two-dimensional drawings in the projection space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.