Adjusting camera parameters associated with a plurality of images
US9036044B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2013 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Oct 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30244
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for adjusting a camera parameter associated with a plurality of two-dimensional images are provided. Matched features can be selected as constraints for bundle adjustment using a graph model constructed based on the matched features. The graph model can have a plurality of nodes including a source node, a sink node, a point node for every matched feature, and a pose pair node associated with each pose pair viewing a matched feature. The graph model can include a plurality of edges interconnecting the plurality of nodes in the graph model. Each of these edges can be assigned a capacity and a cost based on various parameters. A flow can be computed through each of the edges of the graph model using, for instance, a minimum-cost maximum-flow algorithm. Matched features can be selected for bundle adjustment based on the flows of the edges in the graph model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.