Method, apparatus, and computer program product for change detection based on digital signatures
US11829192B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2020 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Sep 15, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/82
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus and computer program utilize digital signatures to accurately and efficiently identify changes to objects of interest within captured images. In the context of a method, a digital signature is obtained for an object of interest at a particular location. The method also determines whether a difference between the digital signature and a previously determined digital signature associated with the location satisfies a predefined criterion. In accordance with determining that the difference fails to satisfy the predefined criterion, the method causes information regarding the object of interest at the particular location to be collected, such as to permit a map that references the object of interest or other information associated with the object of interest to be updated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.