Veneer roughness detection
US7777897B1 · kind B1 · utility
6Cited by
5References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 10, 2007 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Sep 10, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/303
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sample surface such as a surface of a wood veneer sheet is illuminated by a dual color light system and electronically scanned with a color line scan camera. The light system provides red and green light fluxes that are incident to a veneer surface from different directions, and corresponding line images associated with the red and green light fluxes are processed by rescaling, linear to log conversion, edge filtering, and/or thresholding to provide binary surface maps associated with veneer surface roughness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.