Method for determining seam line of orthoimages, method for generating mosaic image of orthoimages, device thereof, and medium thereof
US12340486B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2024 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Nov 11, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30181
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for determining a seam line of orthoimages, method for generating a mosaic image, device, and medium. The method includes: extracting valid area contours of a master image and a slave image respectively through a crawling search method; calculating difference values of valid pixels within an overlapping area between the master and slave images through a difference function, to obtain a difference map of the valid area; if there are more than two intersection points: calculating a position of a centroid of the overlapping area based on coordinates of each contour point of the intersection contour, determining a rectangular window centered on the centroid in the difference map, searching the rectangular window, and taking a position with a smallest difference value as an optimization end and the intersection points as optimization starts; determining, based on the optimization start and optimization end, a seam line through an A* algorithm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.