Indexing of images and/or text
US6522780B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2001 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Mar 24, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99936
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Indexing images for use in a searchable index includes receiving an image. A joint histogram may be computed for the received image such that the joint histogram includes joint features. A searchable index based on the joint features within the joint histogram may be created using an index methodology. Text also may be received and a searchable index of the received text may be created. A weighting factor may be applied to at least one of the joint features within the joint histogram such that the joint histogram represents a weighted joint histogram. A searchable index may include a first joint histogram feature corresponding to at least a first image, which includes the first joint histogram feature. The searchable index also may include a second joint histogram feature corresponding to at least a second image, which includes the second joint histogram feature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.