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Magnetic block device surface defect detection method and device based on improved SimOTA

A device surface and defect detection technology, applied in neural learning methods, instruments, computer parts, etc., can solve the problems of low detection accuracy and slow detection speed, and achieve improved detection accuracy, reduced missed detection rate, improved accuracy and Detecting the effect of speed

Pending Publication Date: 2022-08-05
WUHAN UNIV OF TECH
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  • Description
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Problems solved by technology

[0005] In view of this, it is necessary to provide a method and device for detecting surface defects of magnetic block devices based on improved SimOTA to solve the problems of slow detection speed and low detection accuracy of surface defects of magnetic block devices in the prior art

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  • Magnetic block device surface defect detection method and device based on improved SimOTA
  • Magnetic block device surface defect detection method and device based on improved SimOTA
  • Magnetic block device surface defect detection method and device based on improved SimOTA

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Embodiment Construction

[0045] The preferred embodiments of the present invention are specifically described below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present application, and together with the embodiments of the present invention, are used to explain the principles of the present invention, but are not used to limit the scope of the present invention.

[0046] In the description of the present application, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0047] Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitl...

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Abstract

The invention relates to an improved SimOTA-based magnetic block device surface defect detection method and device, and the method comprises the steps: obtaining a target feature analysis model which comprises an image segmentation module and a feature extraction module; obtaining a to-be-detected magnetic block device surface picture; segmenting a to-be-detected magnetic block device surface picture into a plurality of image segments, and extracting feature pictures from the image segments; by improving an existing SimOTA anchor frame distribution strategy, the length-width ratio and the area proportion of all candidate frames are calculated, so that the number of the candidate frames is adjusted in a self-adaptive mode, the IOU value of each anchor frame is weighted, and the anchor frames are distributed for the surface defects of the magnetic block device in the feature picture. The detail information of more defect areas in the feature picture is fully considered. According to the improved SimOTA-based magnetic block device surface defect detection method and device provided by the invention, the surface information of the magnetic block device is obtained through an improved SimOTA anchor frame distribution strategy, the number of candidate anchor frames is reduced, and the detection precision and the detection speed are improved.

Description

technical field [0001] The invention relates to the technical field of surface defect detection of magnetic block devices, in particular to a method and device for surface defect detection of magnetic block devices based on improved SimOTA. Background technique [0002] Magnetic block devices are widely used in industry. Various defects on the surface of the device may cause it to fail to be put into use normally, such as affecting the installation of components, reducing the accuracy of the equipment, and interfering with the normal operation of the system, thereby reducing economic benefits or bringing safety. Sexual issues. Therefore, in order to ensure the quality of the magnetic block device, the research on the defect detection on the surface of the magnetic block has very important practical significance. [0003] In the prior art, methods for detecting surface defects of magnetic block devices include a method of combining multi-layer features with CNN combined with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/62G06V10/26G06V10/44G06V10/774G06N3/08G06N3/04
CPCG06T7/0004G06V10/44G06V10/26G06T7/62G06N3/08G06V10/774G06T2207/10004G06T2207/20081G06T2207/30164G06N3/045
Inventor 尹勇黄子浩李方宇刘官保
Owner WUHAN UNIV OF TECH
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