Multimodal image matching method and system, terminal device, and storage medium
US12354322B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2024 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Nov 21, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10044
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided are a multimodal image matching method and system, terminal device, and storage medium. The method includes: performing self-supervised feature extraction on an optical image and a synthetic aperture radar (SAR) image to obtain a repetitive feature point between the optical image and the SAR image; segmenting the optical image and the SAR image into a first image block sequence based on the repetitive feature point, and performing feature extraction on the first image block sequence through a dual-branch network to obtain feature description vectors of the optical image and the SAR image respectively, where the dual-branch network includes a first branch network for extracting a global feature and a second branch network for extracting a local feature; and performing feature matching on the optical image and the SAR image based on the feature description vectors to obtain a matching point pair between the optical image and the SAR image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.