Image signal analyzing system
US5500907A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1992 |
| Grant date | Mar 19, 1996 |
| Priority date | — |
| Expiry date | Jun 24, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F18/24323
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image signal analyzing system capable of accomplishing shape analysis for processing or coding an image with easy, by space division using two orthogonal representative vectors, or by differential representative vectors given by the difference between representative vectors. With such a system, inner products between mean separated blocks produced by a mean separated unit and a differential representative vector set stored in a memory in advance are computed by inner product computing unit disposed into a binary tree shape having n stages. Positive/negative signs expressing resulting inner products in the respective stages of the binary tree computed by the inner product computing unit are held, as indexes, by n index holding means sequentially, and an index representing the shape of input image information is obtained from the n indexes held by the index holding unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.