Inspection device
US10887501B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2019 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Dec 23, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30156
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An inspection device includes: an inspection pattern creating unit that creates an inspection pattern in which first regions each colored with a color different from each other and second regions each colored with a mixed color obtained by mixing at least two of colors with which the first regions are colored are alternately arranged; an irradiation unit that irradiates a surface of an inspection target with the inspection pattern while sliding the inspection pattern by a movement amount; a captured image acquisition unit that acquires a captured image obtained by imaging the surface of the inspection target irradiated with the inspection pattern; and a determination unit that generates color component images obtained by separating the acquired captured image for each of color components of the colors and determines whether or not there is a defect in the surface of the inspection target based on the color component images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.