Apparatus for discriminating particle aggregation pattern
US5230026A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1991 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | May 15, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30072
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for discriminating a particle aggregation pattern includes a memory circuit for storing line data output from a CCD line sensor, which line data represents the aggregation pattern. A maximum value is obtained for each set of line data, and thereafter a further maximum value is obtained from the afore-mentioned previously obtained maximum values. A threshold value is determined on the basis of the further maximum value, and is then applied to the line data in order to extract therefrom information regarding the shape and area of the aggregation pattern. In another embodiment, the threshold value is determined on the basis of minimum values obtained from the line data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.