Image acquiring method and image acquiring apparatus using the same
US10133052B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2014 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Mar 24, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30148
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An image acquiring method for acquiring an image using a measurement apparatus including an image acquiring means which acquires an image of a surface of a target to be measured in the unit of predetermined size pixels and a moving means capable of moving the target to be measured, the image acquiring method includes: acquiring an image of a first region from the surface of the target to be measured through the image acquiring means; acquiring an image of a second region, which is different from the first region, by moving the target to be measured, through the moving means; acquiring a differential image by subtracting, from either the image of the first region or the image of the second region, the other image; and overlapping the differential image multiple times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.