CN106952250A - A kind of metal plate and belt detection method of surface flaw and device based on Faster R CNN networks - Google Patents

A kind of metal plate and belt detection method of surface flaw and device based on Faster R CNN networks Download PDF

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CN106952250A
CN106952250A CN201710110525.4A CN201710110525A CN106952250A CN 106952250 A CN106952250 A CN 106952250A CN 201710110525 A CN201710110525 A CN 201710110525A CN 106952250 A CN106952250 A CN 106952250A
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image
metal plate
defect
rectangle frame
faster
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CN106952250B (en
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李江昀
任起锐
张�杰
左磊
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University of Science and Technology Beijing USTB
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00Image analysis
    • G06T7/0002Inspection of images, e.g. flaw detection
    • G06T7/0004Industrial image inspection
    • G06T7/0008Industrial image inspection checking presence/absence
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/8851Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/8851Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G01N2021/8887Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
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    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/20Special algorithmic details
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    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/20Special algorithmic details
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    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/30Subject of image; Context of image processing
    • G06T2207/30108Industrial image inspection
    • G06T2207/30136Metal

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Abstract

The present invention provides a kind of metal plate and belt detection method of surface flaw and device based on Faster R CNN networks, it is possible to increase the accuracy rate of metal plate and belt surface defects detection.Method includes:Gather the image on the metal plate and belt surface for training Faster R CNN networks;The image on the metal plate and belt surface to collecting carries out data enhancing;Defect part in the image that will be obtained after the image on the metal plate and belt surface collected and data enhancing is labeled with rectangle frame, the species that the coordinate and rectangle frame for obtaining rectangle frame include defect;Faster R CNN networks are trained according to the species that the coordinate of the image obtained after the image on the metal plate and belt surface collected and data enhancing, and the rectangle frame obtained includes defect with the rectangle frame;Metal strip surface image to be detected is gathered in real time, and according to the Faster R CNN networks trained, whether detection metal plate and belt surface is defective in real time, and the defect detected is classified and positioned.The present invention is applied to technical field of machine vision.

Description

A kind of metal plate and belt detection method of surface flaw based on Faster R-CNN networks and Device
Technical field
The present invention relates to technical field of machine vision, a kind of metal plate and belt based on Faster R-CNN networks is particularly related to Detection method of surface flaw and device.
Background technology
Metal plate and belt is the indispensable raw material of the industries such as automobile, machine-building, chemical industry, Aero-Space and shipbuilding.Gold Category strip surface defect refers to metal plate and belt during production and processing, because technique or other a variety of causes cause metallic plate Belt surface regional area is physically or chemically uneven.Common metal plate and belt surface defect has roll marks, spot, cut, hole Hole, holiday, depression, bubble, foreign matter, peeling etc..Surface defect is the higher position of atom active, usually as metal erosion Place is originated, the presence of surface defect can substantially reduce the fatigue resistance of part, damage the quality of piece surface, influence machine, The performance of instrument and life-span, influence the performance and quality of its final products.Therefore metal plate and belt surface defect is detected in time, Order of severity evaluation is carried out to defect, for improving surface quality and product economy benefit important in inhibiting.
With continuing to develop for China's industrialized level, requirement to metal plate and belt surface quality also more and more higher, how Rapidly and accurately detect surface defect as a link very crucial during rolling metal plate and tape.The table of current main flow Planar defect detection technique is the machine vision technique based on image procossing, and two steps are divided into substantially:
(1) first the image obtained by industrial camera is handled, then extracts feature, the method for this step mainly has The class of statistic law, Structure Method, Spectrum Method, modelling etc. four, wherein using it is relatively broad be statistic law and Spectrum Method [2];
(2) by the grader trained, the feature that (1) is extracted is classified, had at present using more grader BP neural network, SVM etc..
But these methods have a low contrast between defect and non-defective region, noise and fine defects it is similar Property, detection speed is slow and the low problem of accuracy of identification, it is impossible to meet industrial accuracy and property is required.
The content of the invention
Lack the technical problem to be solved in the present invention is to provide a kind of metal plate and belt surface based on Faster R-CNN networks Detection method and device are fallen into, to solve that present in prior art industrial accuracy and requirement of real-time can not be met Problem.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of metal plate and belt based on Faster R-CNN networks Detection method of surface flaw, including:
Gather the image on the metal plate and belt surface for training Faster R-CNN networks;
The image on the metal plate and belt surface to collecting carries out data enhancing;
Defect part in the image that will be obtained after the image on the metal plate and belt surface collected and data enhancing is used Rectangle frame is labeled, the species that the coordinate and the rectangle frame for obtaining the rectangle frame include defect;
The image obtained after being strengthened according to the image on the metal plate and belt surface collected and data, and acquisition are described The species that the coordinate of rectangle frame includes defect with the rectangle frame is trained to Faster R-CNN networks;
Metal strip surface image to be detected is gathered in real time, is adopted according to the Faster R-CNN networks trained and in real time The metal strip surface image to be detected collected, whether detection metal plate and belt surface is defective in real time, and to lacking for detecting It is trapped into row classification and positions.
Further, the described pair of image on the metal plate and belt surface collected, which carries out data enhancing, includes:
The image on the metal plate and belt surface by upset, translation strategy to collecting carries out data enhancing.
Further, in the image that will be obtained after the image on the metal plate and belt surface collected and data enhancing Defect part be labeled with rectangle frame, the species bag that the coordinate and the rectangle frame for obtaining the rectangle frame include defect Include:
Defect part in the image that will be obtained after the image on the metal plate and belt surface collected and data enhancing is used Rectangle frame is labeled, and obtains the center point coordinate of the rectangle frame, the width of the rectangle frame, height, and the rectangle frame The species of included defect;
By the image obtained after the image on the metal plate and belt surface collected and data enhancing, the rectangle obtained The center point coordinate of frame, the width of the rectangle frame include the species generation data set of defect with height and the rectangle frame.
Further, the image obtained after the image according to the metal plate and belt surface collected and data enhancing, And the species that the coordinate of the rectangle frame obtained includes defect with the rectangle frame is trained to FasterR-CNN networks Before, methods described also includes:
According to the defect classification to be detected, total defect classification that modification Faster R-CNN networks can be detected, and be The fixed numbering of each defect classification to be detected distribution.
Further, the image on the metal plate and belt surface that the basis is collected in real time and data are obtained after strengthening Image, and the coordinate species that includes defect with the rectangle frame of the rectangle frame obtained are entered to Faster R-CNN networks Row training includes:
Faster R-CNN networks are trained according to the data set of generation.
The embodiment of the present invention also provides a kind of metal plate and belt surface defect detection apparatus based on Faster R-CNN networks, Including:
Acquisition module, the image for gathering the metal plate and belt surface for being used to train Faster R-CNN networks;
Strengthen module, the image for the metal plate and belt surface to collecting carries out data enhancing;
Acquisition module, for will be after the image on the metal plate and belt surface collected and data enhancing in obtained image Defect part be labeled with rectangle frame, the species that the coordinate and the rectangle frame for obtaining the rectangle frame include defect;
Training module, for the figure obtained after the image according to the metal plate and belt surface collected and data enhancing Picture, and the coordinate of the rectangle frame obtained include the species of defect to the progress of FasterR-CNN networks with the rectangle frame Training;
Detection module, for gathering metal strip surface image to be detected in real time, according to the FasterR-CNN trained Network and the metal strip surface image to be detected collected in real time, whether detection metal plate and belt surface is defective in real time, and The defect detected is classified and positioned.
Further, the enhancing module, for passing through upset, the tactful metal plate and belt surface to collecting of translation Image carry out data enhancing.
Further, the acquisition module includes:
Unit is marked, for will be after the image on the metal plate and belt surface collected and data enhancing in obtained image Defect part be labeled with rectangle frame;
Acquiring unit, the center point coordinate for obtaining the rectangle frame, the width of the rectangle frame, height, and it is described Rectangle frame includes the species of defect;
Generation unit, for will the image on the metal plate and belt surface collected and data enhancing after obtain image, The center point coordinate of the rectangle frame obtained, the width of the rectangle frame include defect with height and the rectangle frame Species generates data set.
Further, described device also includes:
Numbering module, for according to the defect classification to be detected, it is total that modification Faster R-CNN networks can be detected Defect classification, and be the fixed numbering of each the defect classification to be detected distribution.
Further, the training module, is trained for the data set according to generation to Faster R-CNN networks.
The above-mentioned technical proposal of the present invention has the beneficial effect that:
In such scheme, the image on the metal plate and belt surface for training Faster R-CNN networks is gathered;To collecting The metal plate and belt surface image carry out data enhancing;The image on the metal plate and belt surface collected and data are increased Defect part in the image obtained after strong is labeled with rectangle frame, obtains the coordinate of the rectangle frame and the rectangle frame institute Species comprising defect;According to the image obtained after the image on the metal plate and belt surface collected and data enhancing, and obtain The species that the coordinate of the rectangle frame taken includes defect with the rectangle frame is trained to Faster R-CNN networks;It is real When gather metal strip surface image to be detected, according to the Faster R-CNN networks trained and collect in real time it is to be checked The metal strip surface image of survey, whether detection metal plate and belt surface is defective in real time, and the defect detected is classified And positioning, not only meet the demand that industrial production detects metal plate and belt surface defect in real time, moreover it is possible to improve metal plate and belt surface The accuracy rate of defects detection.
Brief description of the drawings
Fig. 1 is the metal plate and belt detection method of surface flaw provided in an embodiment of the present invention based on Faster R-CNN networks Schematic flow sheet;
Fig. 2 is the operation principle schematic diagram of Faster R-CNN networks provided in an embodiment of the present invention;
Fig. 3 is the metal strip surface image to be detected provided in an embodiment of the present invention collected in real time;
Fig. 4 is the metal plate and belt detection method of surface flaw provided in an embodiment of the present invention based on Faster R-CNN networks Design sketch after detection;
Fig. 5 is the metal plate and belt surface defect detection apparatus provided in an embodiment of the present invention based on Faster R-CNN networks Structural representation.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool Body embodiment is described in detail.
The present invention for it is existing can not meet industrial accuracy and requirement of real-time the problem of there is provided a kind of base In the metal plate and belt detection method of surface flaw and device of Faster R-CNN networks.
Embodiment one
Referring to shown in Fig. 1, the metal plate and belt surface defect provided in an embodiment of the present invention based on Faster R-CNN networks Detection method, including:
S101, gathers the image on the metal plate and belt surface for training Faster R-CNN networks;
S102, the image on the metal plate and belt surface to collecting carries out data enhancing;
Defective part in S103, the image that will be obtained after the image on the metal plate and belt surface collected and data enhancing Divide and be labeled with rectangle frame, the species that the coordinate and the rectangle frame for obtaining the rectangle frame include defect;
S104, according to the image obtained after the image on the metal plate and belt surface collected and data enhancing, and is obtained The coordinate species that includes defect with the rectangle frame of the rectangle frame Faster R-CNN networks are trained;
S105, gathers metal strip surface image to be detected in real time, according to the Faster R-CNN networks that train and The metal strip surface image to be detected collected in real time, whether detection metal plate and belt surface is defective in real time, and to detection To defect classified and positioned.
The metal plate and belt detection method of surface flaw based on Faster R-CNN networks described in the embodiment of the present invention, collection For the image on the metal plate and belt surface for training Faster R-CNN networks;To the image on the metal plate and belt surface collected Carry out data enhancing;Defective part in the image that will be obtained after the image on the metal plate and belt surface collected and data enhancing Divide and be labeled with rectangle frame, the species that the coordinate and the rectangle frame for obtaining the rectangle frame include defect;According to collection To the metal plate and belt surface image and data enhancing after obtained image, and the rectangle frame obtained coordinate and institute The species that rectangle frame includes defect is stated to be trained Faster R-CNN networks;Metal plate and belt table to be detected is gathered in real time Face image, it is real according to the Faster R-CNN networks trained and the metal strip surface image to be detected collected in real time When detection metal plate and belt surface it is whether defective, and the defect detected is classified and positioned, not only meet industrial life Production detects the demand of metal plate and belt surface defect in real time, moreover it is possible to improve the accuracy rate of metal plate and belt surface defects detection.
In the present embodiment, in order to more fully understand the metal plate and belt surface defects detection side based on Faster R-CNN networks Method, first the operation principle to Faster R-CNN networks is illustrated, as shown in Fig. 2 FasterR-CNN is main by two parts Composition:(1) it is used for candidate region network (the Region Proposal for generating region proposal (candidate region) Network, RPN), RPN is a full convolutional network, and its main function is to carry out calculating analysis to the convolutional layer feature of picture, Then under different image scaleds, generating some rectangle frames for different defect types, (coordinate of rectangle frame is by four Count to represent, frame center point coordinate x and y, height h, the same pictures of width w) can produce thousands of rectangle frames, these rectangles Frame is exactly region proposal (region for being likely to be defect);(2) defects detection is carried out to region proposal Depth convolutional neural networks Fast R-CNN, Fast R-CNN obtained region proposal exported to RPN calculated Analysis, weeds out the region proposal of redundancy or mistake, obtains optimal rectangle frame and category score, as last inspection Survey result;In Fig. 2, image represents image;Conv layers represent convolutional layer;Feature maps represent Feature Mapping; Proposals represents candidate region;Classifier presentation class devices;RoI pooling full name are region of Interest pooling, Chinese is area-of-interest pond layer/RoI ponds layer.
In the embodiment of the foregoing metal plate and belt detection method of surface flaw based on Faster R-CNN networks, Further, the described pair of image on the metal plate and belt surface collected, which carries out data enhancing, includes:
The image on the metal plate and belt surface by upset, translation strategy to collecting carries out data enhancing.
In the present embodiment, the metal plate and belt surface for training Faster R-CNN networks can be gathered by industrial camera Image, and the strategies such as upset, translation passed through to the image on the metal plate and belt surface of collection carry out data enhancing.
In the present embodiment, data enhancing is very few or in the case that data are difficult to obtain in data intensive data, to existing Data set be enlarged by strategies such as turnover translation movings, obtained data set include original data and enhanced data. Same object, is observed under different angles and different backgrounds, and obtained image may be entirely different, and computer is possibly can not These images are correctly recognized, therefore mirror image switch is carried out to image and moved horizontally, data set can be made to include same figure Various data of the piece in different angle diverse locations.
In the embodiment of the foregoing metal plate and belt detection method of surface flaw based on Faster R-CNN networks, Further, the defective part in the image that will be obtained after the image on the metal plate and belt surface collected and data enhancing Divide and be labeled with rectangle frame, the species that the coordinate for obtaining the rectangle frame includes defect with the rectangle frame includes:
Defect part in the image that will be obtained after the image on the metal plate and belt surface collected and data enhancing is used Rectangle frame is labeled, and obtains the center point coordinate of the rectangle frame, the width of the rectangle frame, height, and the rectangle frame The species of included defect;
By the image obtained after the image on the metal plate and belt surface collected and data enhancing, the rectangle obtained The center point coordinate of frame, the width of the rectangle frame include the species generation data set of defect with height and the rectangle frame.
In the present embodiment, in the image that will be obtained after the image on the metal plate and belt surface collected and data enhancing Defect part is labeled with rectangle frame, and the species that the coordinate and the rectangle frame for taking the rectangle frame include defect is (specific 's:Five parameters of each rectangle frame are obtained, five parameters of the rectangle frame include:The center point coordinate of rectangle frame is (described Center point coordinate is two-dimensional coordinate), width and the height, and rectangle frame of rectangle frame include the species of defect), it will collect The metal plate and belt surface image and data enhancing after obtain image, this five parameters generation texts, text text Part includes five parameters of all rectangle frames in every pictures, so that data set is obtained, according to the data set pair of generation FasterR-CNN networks are trained, wherein, data set includes whole images and text.
In the present embodiment, the data set includes three parts, and Part I is training set, for training FasterR-CNN Network;Part II part is checking collection, for adjusting Faster R-CNN network hyper parameters;Part III is test set, is used To weigh network performance.
In the present embodiment, for each bounding box when calculating confidence level, it can be calculated for each defect kind The confidence level of class.In the embodiment of the foregoing metal plate and belt detection method of surface flaw based on Faster R-CNN networks In, further, the image obtained after the image according to the metal plate and belt surface collected and data enhancing, and obtain The rectangle frame coordinate and the rectangle frame species that includes defect Faster R-CNN networks are trained before, Methods described also includes:
According to the defect classification to be detected, total defect classification that modification Faster R-CNN networks can be detected, and be The fixed numbering of each defect classification to be detected distribution.
In the present embodiment, according to the defect classification to be detected (such as roll marks, spot, cut, hole, holiday, depression, gas Bubble, foreign matter, peeling etc.), total defect classification that modification Faster R-CNN networks can be detected, and to be detected for each The fixed numbering of defect classification distribution.
In the present embodiment, when the good Faster R-CNN networks of application training detect metal plate and belt surface defect, reality is needed When gather metal strip surface image metal plate and belt surface defect to be detected, further according to the Faster R-CNN networks trained The metal strip surface image to be detected collected in real time, whether detection metal plate and belt surface is defective in real time, and to inspection The defect measured is classified and positioned, the metal plate and belt surface defect based on Faster R-CNN networks that the present embodiment is provided Detection method, can fast and accurately detect the defect on metal plate and belt surface, have higher for various types of defects Accuracy rate, testing result can reach more than 95 percent accuracy rate, and the defect for partial category can even reach To absolutely accuracy rate, Fig. 3 and Fig. 4 is the metal strip surface image to be detected gathered in real time respectively with using this reality Design sketch after the detection of the metal plate and belt detection method of surface flaw based on Faster R-CNN networks of example offer is provided.
In the present embodiment, industrial camera can be set up on metal plate and belt production line to gather metal to be detected in real time Strip surface image, industrial camera is connected with computer, the metal plate and belt surface to be detected collected whenever industrial camera Image and when being transferred to computer, the Faster R-CNN networks trained can realize the real-time processing to image, by image In defect marked out come and exported with rectangle frame.
Embodiment two
The present invention also provides a kind of the specific of metal plate and belt surface defect detection apparatus based on Faster R-CNN networks Embodiment, the metal plate and belt surface defect detection apparatus based on Faster R-CNN networks provided due to the present invention with it is foregoing The embodiment of metal plate and belt detection method of surface flaw based on Faster R-CNN networks is corresponding, and this is based on The metal plate and belt surface defect detection apparatus of Faster R-CNN networks can be by performing in above method embodiment Process step realize the purpose of the present invention, therefore the above-mentioned metal plate and belt surface defect inspection based on Faster R-CNN networks Explanation in survey method embodiment, is also applied for the metal based on Faster R-CNN networks that the present invention is provided The embodiment of strip surface defect detection means, will not be described in great detail in the embodiment below the present invention.
Referring to shown in Fig. 5, the embodiment of the present invention also provides a kind of metal plate and belt surface based on Faster R-CNN networks Defect detecting device, including:
Acquisition module 11, the image for gathering the metal plate and belt surface for being used to train Faster R-CNN networks;
Strengthen module 12, the image for the metal plate and belt surface to collecting carries out data enhancing;
Acquisition module 13, for the image that will be obtained after the image on the metal plate and belt surface collected and data enhancing In defect part be labeled with rectangle frame, the kind that the coordinate and the rectangle frame for obtaining the rectangle frame include defect Class;
Training module 14, for the figure obtained after the image according to the metal plate and belt surface collected and data enhancing Picture, and the coordinate of the rectangle frame obtained include the species of defect to the progress of Faster R-CNN networks with the rectangle frame Training;
Detection module 15, for gathering metal strip surface image to be detected in real time, according to the Faster R- trained CNN networks and the metal strip surface image to be detected collected in real time, whether detection metal plate and belt surface is defective in real time, And the defect detected is classified and positioned.
The metal plate and belt surface defect detection apparatus based on Faster R-CNN networks described in the embodiment of the present invention, collection For the image on the metal plate and belt surface for training Faster R-CNN networks;To the image on the metal plate and belt surface collected Carry out data enhancing;Defective part in the image that will be obtained after the image on the metal plate and belt surface collected and data enhancing Divide and be labeled with rectangle frame, the species that the coordinate and the rectangle frame for obtaining the rectangle frame include defect;According to collection To the metal plate and belt surface image and data enhancing after obtained image, and the rectangle frame obtained coordinate and institute The species that rectangle frame includes defect is stated to be trained Faster R-CNN networks;Metal plate and belt table to be detected is gathered in real time Face image, it is real according to the Faster R-CNN networks trained and the metal strip surface image to be detected collected in real time When detection metal plate and belt surface it is whether defective, and the defect detected is classified and positioned, not only meet industrial life The property demand of production, moreover it is possible to improve the accuracy rate of surface defects detection.
In the embodiment of the foregoing metal plate and belt surface defect detection apparatus based on Faster R-CNN networks, Further, the enhancing module, the image for the metal plate and belt surface by upset, translation strategy to collecting enters Row data strengthen.
In the embodiment of the foregoing metal plate and belt surface defect detection apparatus based on Faster R-CNN networks, Further, the acquisition module includes:
Unit is marked, for will be after the image on the metal plate and belt surface collected and data enhancing in obtained image Defect part be labeled with rectangle frame;
Acquiring unit, the center point coordinate for obtaining the rectangle frame, the width of the rectangle frame, height, and it is described Rectangle frame includes the species of defect;
Generation unit, for will the image on the metal plate and belt surface collected and data enhancing after obtain image, The center point coordinate of the rectangle frame obtained, the width of the rectangle frame include defect with height and the rectangle frame Species generates data set.
In the embodiment of the foregoing metal plate and belt surface defect detection apparatus based on Faster R-CNN networks, Further, described device also includes:
Numbering module, for according to the defect classification to be detected, it is total that modification Faster R-CNN networks can be detected Defect classification, and be the fixed numbering of each the defect classification to be detected distribution.
In the embodiment of the foregoing metal plate and belt surface defect detection apparatus based on Faster R-CNN networks, Further, the training module, is trained for the data set according to generation to Faster R-CNN networks.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of metal plate and belt detection method of surface flaw based on Faster R-CNN networks, it is characterised in that including:
Gather the image on the metal plate and belt surface for training Faster R-CNN networks;
The image on the metal plate and belt surface to collecting carries out data enhancing;
Defect part rectangle in the image that will be obtained after the image on the metal plate and belt surface collected and data enhancing Frame is labeled, the species that the coordinate and the rectangle frame for obtaining the rectangle frame include defect;
According to the image obtained after the image on the metal plate and belt surface collected and data enhancing, and the rectangle obtained The species that the coordinate of frame includes defect with the rectangle frame is trained to Faster R-CNN networks;
Metal strip surface image to be detected is gathered in real time, is collected according to the Faster R-CNN networks trained and in real time Metal strip surface image to be detected, whether detection metal plate and belt surface defective in real time, and the defect detected is entered Row classification and positioning.
2. the metal plate and belt detection method of surface flaw according to claim 1 based on Faster R-CNN networks, it is special Levy and be, the described pair of image on the metal plate and belt surface collected, which carries out data enhancing, to be included:
The image on the metal plate and belt surface by upset, translation strategy to collecting carries out data enhancing.
3. the metal plate and belt detection method of surface flaw according to claim 1 based on Faster R-CNN networks, it is special Levy and be, the defect part in the image that will be obtained after the image on the metal plate and belt surface collected and data enhancing It is labeled with rectangle frame, the species that the coordinate for obtaining the rectangle frame includes defect with the rectangle frame includes:
Defect part rectangle in the image that will be obtained after the image on the metal plate and belt surface collected and data enhancing Frame is labeled, and obtains the center point coordinate of the rectangle frame, the width of the rectangle frame, height, and the rectangle frame are wrapped Species containing defect;
By the image obtained after the image on the metal plate and belt surface collected and data enhancing, the rectangle frame obtained Center point coordinate, the width of the rectangle frame include the species generation data set of defect with height and the rectangle frame.
4. the metal plate and belt detection method of surface flaw according to claim 1 based on Faster R-CNN networks, it is special Levy and be, the image obtained after the image according to the metal plate and belt surface collected and data enhancing, and the institute obtained It is described before the species that the coordinate and the rectangle frame for stating rectangle frame include defect is trained to Faster R-CNN networks Method also includes:
According to the defect classification to be detected, total defect classification that modification Faster R-CNN networks can be detected, and be each The fixed numbering of the individual defect classification to be detected distribution.
5. the sheet metal surface defect inspection method according to claim 3 based on Faster R-CNN networks, it is special Levy and be, the image obtained after image and the data enhancing on the metal plate and belt surface that the basis is collected in real time, and obtain The coordinate of the rectangle frame taken is trained bag with the species that the rectangle frame includes defect to Faster R-CNN networks Include:
Faster R-CNN networks are trained according to the data set of generation.
6. a kind of metal plate and belt surface defect detection apparatus based on Faster R-CNN networks, it is characterised in that including:
Acquisition module, the image for gathering the metal plate and belt surface for being used to train Faster R-CNN networks;
Strengthen module, the image for the metal plate and belt surface to collecting carries out data enhancing;
Acquisition module, for will lacking in obtained image after the image on the metal plate and belt surface collected and data enhancing Fall into part to be labeled with rectangle frame, the species that the coordinate and the rectangle frame for obtaining the rectangle frame include defect;
Training module, for the image obtained after the image according to the metal plate and belt surface collected and data enhancing, and The species that the coordinate of the rectangle frame obtained includes defect with the rectangle frame is trained to Faster R-CNN networks;
Detection module, for gathering metal strip surface image to be detected in real time, according to the Faster R-CNN nets trained Network and the metal strip surface image to be detected collected in real time, whether detection metal plate and belt surface is defective and right in real time The defect detected is classified and positioned.
7. the metal plate and belt surface defect detection apparatus according to claim 6 based on Faster R-CNN networks, it is special Levy and be, the enhancing module, the image for the metal plate and belt surface by upset, translation strategy to collecting is carried out Data strengthen.
8. the metal plate and belt surface defect detection apparatus according to claim 6 based on Faster R-CNN networks, it is special Levy and be, the acquisition module includes:
Unit is marked, for will lacking in obtained image after the image on the metal plate and belt surface collected and data enhancing Part is fallen into be labeled with rectangle frame;
Acquiring unit, the center point coordinate for obtaining the rectangle frame, the width of the rectangle frame, height, and the rectangle Frame includes the species of defect;
Generation unit, for will the image on the metal plate and belt surface collected and data enhancing after obtain image, obtain The center point coordinate of the rectangle frame, the width of the rectangle frame species of defect is included with height and the rectangle frame Generate data set.
9. the metal plate and belt surface defect detection apparatus according to claim 6 based on Faster R-CNN networks, it is special Levy and be, described device also includes:
Numbering module, for the total defect that can be detected according to the defect classification to be detected, modification Faster R-CNN networks Classification, and be the fixed numbering of each the defect classification to be detected distribution.
10. the sheet metal strip surface defect detection means according to claim 8 based on Faster R-CNN networks, Characterized in that, the training module, is trained for the data set according to generation to Faster R-CNN networks.
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