Print inspection device, print inspection method, and program
US12307652B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 28, 2021 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Jun 19, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30144
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A print inspection device includes a camera that captures a character printed on an inspection target, a shape matching processor, a deformation pattern generator, and an inspection processor. The shape matching processor checks a shape of a captured character pattern included in a captured image obtained by the camera against a shape of a preset reference character pattern while changing a deformation degree of the shape of the reference character pattern and searches for a matched character. The deformation pattern generator generates a deformed character pattern obtained by deforming the reference character pattern at the deformation degree to which the character is matched in the shape matching process. The inspection processor inspects whether a printed state of the character is satisfactory from a result of the comparison between the deformed character pattern and the captured character pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.