3-dimensional model creation methods and apparatuses
US9557436B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 23, 2013 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Jun 8, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/05
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are methods and apparatuses for creating a 3-Dimensional model for objects in an inspected luggage in a CT system. The method includes acquiring slice data of the luggage with the CT system; interpolating the slice data to generate 3D volume data of the luggage; performing unsupervised segmentation on the 3D volume data of the luggage to obtain a plurality of segmental regions; performing isosurface extraction on the plurality of segmental regions to obtain corresponding isosurfaces; and performing 3D surface segmentation on the isosurfaces to form a 3D model for the objects in the luggage. The above solutions can create a 3D model for objects in the inspected luggage in a relatively accurate manner, and thus provide better basis for subsequent shape feature extraction and security inspection, and reduce omission factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.