Image recognition device
US5067161A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1988 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Aug 3, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A visual recognition device receives video signals representing an object to be recognized from a video camera, converts the video signals to a two-valued input pattern, and compares the input pattern with a standard pattern to recognize the object. The recognition device includes an auxiliary computing unit which carries out a predetermined auxiliary computation during a horizontal scan period of the video camera, in accordance with the state of the input pattern; a main computation unit for carrying out, during a vertical return scan blanking period of the video camera, a main computation based on computation results of the auxiliary computation unit; and a recognition unit for recognizing the input pattern with respect to the standard pattern based on computation results of the main computation unit with respect to the patterns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.