Method and apparatus for assessing the quality of spectral images
US6778702B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2000 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Apr 22, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30128
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is disclosed herein for evaluating quality of an image. The disclosed method contemplates receiving a spectral image and extracting a plurality of pixels therefrom. The plurality of pixels are converted into a plurality of spectral vectors, wherein each element in each spectral vector represents a property of a respective one of N spectral bands. The plurality of spectral vectors are then categorized into a set of M classes. The method further includes the step of computing a mean vector for each of the M classes based upon the spectral vectors associated therewith. Next, spectral similarity values between pairs of the mean vectors are computed. The distribution of these spectral similarity values may then be analyzed in order to obtain information relevant to image quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.