...Xiangnan Liu; Kuanfang He Purpose The purpose of this paper is to propose a new fault feature extraction scheme for the rolling element bearing. Design/methodology/approach The generalized Stockwell transform (GST) and the singular value ratio spectrum (SVRS) methods are combined. A time...

... be contacted at: 2019132048@chd.edu.cn 20 01 2021 19 04 2021 24 05 2021 10 06 2021 © Emerald Publishing Limited 2021 Emerald Publishing Limited Licensed re-use rights only Crack identification Feature extraction Machine learning Matrix network Crack extraction Crack...

...   a ) ] E' = Center of the image ellipse; E = Corresponding object point in circle plane of the image ellipse center E’; α = Angle between the image plane and the circle plane; Feature extraction Centre deviation Circle Perspective projection Projective geometry β = Angle between...

... on which isolated points are removed, a filling process is operated and the curves smaller than given values are removed, thus returning only the external vehicle outline. To apply the vehicle classifiers, some distance features are considered. Feature extraction Registration Edge detection Model...