Image processing method for system employing pattern matching
US6088483A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1998 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Jun 8, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/7515
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided are an image processing method employing pattern matching, whereby the number of calculations for a normalized correlation factor can be reduced and processing speed can be increased in a pattern matching process, and an image processing system therefor. In the pattern matching processing when an insensitive region is set in a template image, values (the sum and the squared sum) obtained during a previous operation for a prior search target sub-image are employed to perform calculations for a current search target sub-image, relative to coordinate sequence code that indicates the start point and the end point of a sequence of pixels having values of "1."
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.