Feature block compression/decompression
US7853092B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2007 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Oct 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/99
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A compressor for compressing a block of feature vectors representing a feature associated with image elements, includes electronic circuitry for determining the distribution of the feature vectors, electronic circuitry for transforming each point pattern in a predetermined set of point patterns to fit the determined distribution, and a selector for selecting a transformed point pattern that best fits the determined distribution. Furthermore, an encoder represents the block of feature vectors by an identifier identifying the selected point pattern in the set of point patterns, parameters representing the transformation associated with the selected point pattern, and an index for each feature vector representing the nearest point in the transformed selected point pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.