Patents
US 12742292 B2: System and method for quantifying a degree of fibrillation of fibers within pulp using image processing
- Granted
- 2026-09-22
- Filed
- 2022-08-11 application 18291553
- Type
- Utility · 19 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Aspects of the present disclosure provide systems, methods, and computer-readable storage media that leverage image processing to determine fibrillation within pulp. Size and shape analysis, such as adaptive thresholding and binarization, may be performed on an image of pulp to determine a fiber area of fibers included in the image. Edge detection and morphological image processing may be performed on a plurality of sub-images of the pulp to determine a count of edges of fibrils included in the image and a sum of grey levels associated with the fibrils, respectively. A degree of fibrillation of the pulp may be determined based at least partially on the fiber area, the count of edges, and the sum of grey levels. Local statistical analysis and a Hough transform may be used to improve accuracy of the degree of fibrillation or to distinguish fibers from fibril clusters and fibrils within the image.
Source: PTBLXML, file of 2026-09-22 (ipgb20260922.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Domtar Paper Company, LLC 21 patents | US company or organization | Fort Mill, SC | PTBLXML, file of 2026-09-22 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Jean-Philippe Bernié | Montreal, CA | PTBLXML, file of 2026-09-22 | ||
| Harshad Pande | Pointe-Claire, CA | 16 | PTBLXML, file of 2026-09-22 | |
| Lindsey Clifton | Fort Mill, SC | PTBLXML, file of 2026-09-22 | ||
| Alexander Timothy Beam | Fort Mill, SC | 2 | PTBLXML, file of 2026-09-22 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| D21H | Pulp compositions; preparation thereof not covered by subclasses d21c or d21d; impregnating or coating of paper; treatment of finished paper not covered by class b31 or subclass d21g; paper not otherwise provided for | D21H23/78 | PTBLXML, file of 2026-09-22 |
| G06T | Image data processing or generation, in general | G06T7/0004 | PTBLXML, file of 2026-09-22 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.