System and method for three-dimensional scan of moving objects longer than the field of view
US11748838B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2021 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Mar 24, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This invention provides a system and method for using an area scan sensor of a vision system, in conjunction with an encoder or other knowledge of motion, to capture an accurate measurement of an object larger than a single field of view (FOV) of the sensor. It identifies features/edges of the object, which are tracked from image to image, thereby providing a lightweight way to process the overall extents of the object for dimensioning purposes. Logic automatically determines if the object is longer than the FOV, and thereby causes a sequence of image acquisition snapshots to occur while the moving/conveyed object remains within the FOV until the object is no longer present in the FOV. At that point, acquisition ceases and the individual images are combined as segments in an overall image. These images can be processed to derive overall dimensions of the object based on input application details.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.