System and method for automatically registering an image to a three-dimensional point set
US9269145B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2013 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Apr 18, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30212
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and methods can create a synthetic image of a target from a 3D data set, by using an electro-optical (EO) image and sun geometry associated with the EO image. In some examples, a 3D surface model is created from a 3D data set. The 3D surface model establishes a local surface orientation at each point in the 3D data set. A surface shaded relief (SSR) is produced from the local surface orientation, from an EO image, and from sun geometry associated with the EO image. Points in the SSR that are in shadows are shaded appropriately. The SSR is projected into the image plane of the EO image. Edge-based registration extracts tie points from the projected SSR. The 3D data set converts the tie points to ground control points. A geometric bundle adjustment aligns the EO image geometry to the 3D data set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.