Wuhan University

Daiwei Bi

Lei Zhang

Yang Liu

Tao Huang

Cancan Yi

Han Xiao

A machine vision-based crystallizer nozzle centering method includes: S, performing image acquisition on a tundish car lower nozzle and a crystallizer nozzle; S, performing an edge enhancement using guide image filtering; S, performing an edge extraction on a first image set using an ant algorithm, and obtaining a second image set; S, performing smoothing processing and a centerline extraction on the second image set using a morphological closing operation respectively, and obtaining a centerline equation; S, centering the crystallizer nozzle in a width direction according to the centerline equation, and obtaining a width centering result; S, 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 S, adjusting a position of a tundish car according to the width centering result and the thickness centering result.

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Wuhan, China

Daiwei Bi