Apparatus and method for processing object data in computed tomography data using object projections
US6345113B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1999 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Jan 12, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/05
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for identifying and classifying objects represented in CT data for a region using the shape of the objects are disclosed. An object represented by CT data for a region is identified. Next, a two-dimensional projection of the object along a principal axis of the object is generated. The principal axis can be identified by computing eigenvectors of a covariance matrix of spatial locations of voxels in the CT data that are associated with the object. The smallest eigenvector can be selected as the principal axis of the object along which the two-dimensional projection is generated. The identification of the object can be used in the classification of the object such as by altering one or more discrimination parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.