Method and device for dividing area of image of particle in urine
US9239281B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2009 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | Jan 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/1472
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An objective is to provide a method and an apparatus for accurately extracting a region of an object particle from a urine particle image obtained by taking an image of urine particles in a urine specimen having varying properties. First, a first object region is extracted using one or more of an R image, a G image, and a B image of a urine particle image taken by an image input optical system configured to input particle images. Then, a density distribution and a size of the first object region of one or more of the R image, the G image, and the B image are calculated. Based on these feature parameters, the first object region is classified into a predetermined number of groups. A second object region is extracted from a local region including the first object region, by using one or more of the R image, the G image, and the B image, depending on each of the groups. This configuration allows stable region segmentation for each particle image even for a urine specimen in which urine particles having different sizes and tones coexist.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.