Vision system and method for process monitoring
US7313270B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2005 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | May 26, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system to monitor randomly oriented objects on a process line are disclosed. A color camera is used initially to collect a set of training images from a set of training objects on a process line. The training images represent various random spatial orientations of the training objects with respect to the color camera. The training objects serve as the standard for the process. The training images are stored in a computer-based platform. The color camera is then used to capture images of monitored objects as the monitored objects pass by the color camera on the process line. The monitored objects have a random spatial orientation with respect to the color camera as the monitored objects pass through the field-of-view of the color camera. The captured images of the monitored objects are processed by the computer-based platform and compared to the training images in order to determine if certain characteristic parameters of the monitored objects have deviated from those same characteristic parameters of the training objects. If so, the process may be adjusted to correct for the deviations in order to bring the process back into tolerance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.