Method and system of object classification employing dimension reduction
US6993193B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 2002 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Dec 28, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/764
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system of object classification uses measurements for a training set of objects to classify an unknown object as being a member in one of several classes of the training set. The classes are defined by features of the training set, the objects of which have known class memberships. The method comprises performing principal component analysis on the training set measurements to discard features that have negligible information regarding class membership, conducting projection pursuit on the remaining training set measurements to accentuate differences between the classes, estimating a distribution of each accentuated class in the training set, and evaluating measurements of the unknown object to determine the membership of the unknown object in one of the accentuated classes. The system implements the method in a computer program stored in computer memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.