Machine vision-based crystallizer nozzle centering method and system
US12361588B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2025 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Mar 5, 2045 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30172
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A machine vision-based crystallizer nozzle centering method includes: S1, performing image acquisition on a tundish car lower nozzle and a crystallizer nozzle; S2, performing an edge enhancement using guide image filtering; S3, performing an edge extraction on a first image set using an ant algorithm, and obtaining a second image set; S4, performing smoothing processing and a centerline extraction on the second image set using a morphological closing operation respectively, and obtaining a centerline equation; S5, centering the crystallizer nozzle in a width direction according to the centerline equation, and obtaining a width centering result; S6, installing two second image acquisition apparatuses symmetrically on a center extension line of the crystallizer nozzle, and obtaining a thickness centering result using the second image acquisition apparatuses; and S7, adjusting a position of a tundish car according to the width centering result and the thickness centering result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.