CN110136123A - Article detection method, mobile terminal and computer readable storage medium - Google Patents
Article detection method, mobile terminal and computer readable storage medium Download PDFInfo
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- CN110136123A CN110136123A CN201910412615.8A CN201910412615A CN110136123A CN 110136123 A CN110136123 A CN 110136123A CN 201910412615 A CN201910412615 A CN 201910412615A CN 110136123 A CN110136123 A CN 110136123A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
- G06T7/001—Industrial image inspection using an image reference approach
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
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Abstract
The present invention relates to Articles detecting field, a kind of article detection method, mobile terminal and computer readable storage medium are disclosed.In the present invention, article detection method, comprising: obtain the image of article to be detected as image to be detected；The contour images to be detected of the article to be detected are obtained from described image to be detected；The contour images to be detected are compared with the standard picture prestored, judge whether the article to be detected is qualified according to comparison result；Wherein, the standard picture is the contour images of conforming articls or the detail of design of the article to be detected.The advantages of article detection method, mobile terminal provided by embodiment of the present invention and computer readable storage medium have while reducing Articles detecting cost, promote efficiency, accuracy and the reliability of Articles detecting.
Description
Technical field
The present invention relates to Articles detecting field, in particular to a kind of article detection method, mobile terminal and computer-readable
Storage medium.
Background technique
With the rise of modern manufacturing industry automated production, in the production of industry, many industries are all to inspection and measurement
More stringent requirements are proposed for aspect.For example, the detection of printing packaging process, the package detection of semiconductor chip, plant produced line
The detection of product qualification, detection of high-accuracy spare and accessory parts etc..In such applications, the factory of most automations needs large batch of life
It produces, particularly with certain special spare and accessory parts, chip, instrument etc., the requirement of accuracy is very high.
However, it was found by the inventors of the present invention that in actual detection process, due to need to many features of article into
Row compares, traditional artificial detection method inefficiency and cost of labor is larger；On the other hand, the physical endurance of human eye and
The characteristics such as fatiguability also cause the accuracy of Articles detecting and reliability lower.
Summary of the invention
Embodiment of the present invention is designed to provide a kind of article detection method, mobile terminal and computer-readable storage
Medium, so that promoting efficiency, accuracy and the reliability of Articles detecting while reducing Articles detecting cost.
In order to solve the above technical problems, embodiments of the present invention provide a kind of article detection method, applied to having
The mobile terminal of photographic device comprising the steps of: obtain the image of article to be detected as image to be detected；From described to be checked
The contour images to be detected of the article to be detected are obtained in altimetric image；By the contour images to be detected and the standard drawing prestored
As being compared, judge whether the article to be detected is qualified according to comparison result；Wherein, the standard picture is conforming articls
Contour images or the article to be detected detail of design.
Embodiments of the present invention additionally provide a kind of mobile terminal, comprising: photographic device, for obtaining article to be detected
Image as image to be detected；With the image processing apparatus of photographic device communication connection, described image processing unit is used
In receiving described image to be detected from the photographic device, and obtain from described image to be detected the article to be detected to
Detect contour images；With the processor of described image processing unit communication connection, the processor is used for from described image processing
Device receives the contour images to be detected, and the contour images to be detected are compared with the standard picture prestored, sentences
Whether the article to be detected that breaks is qualified；The memory connecting with the processor communication, the memory are described for storing
Standard picture；Wherein, the standard picture is the contour images of conforming articls or the detail of design of the article to be detected.
Embodiment of the present invention also provides a kind of computer readable storage medium, is stored with computer program, the calculating
Machine program realizes article detection method above-mentioned when being executed by processor.
Embodiment of the present invention carries out article inspection in terms of existing technologies, by the mobile terminal with photographic device
Survey, compared to the prior art in the article detection method that is compared by human eye, can effectively simplify the behaviour of Articles detecting
Make process, saves labour turnover；Since mobile terminal not will receive the influence of the factors such as artificial fatigue, object can be effectively promoted
The reliability and accuracy of efficiency and testing result that product examine is surveyed；In addition, Articles detecting is carried out by mobile terminal, it can be effective
Promotion embodiment of the present invention provided by article detection method the scope of application.
In addition, it is described the contour images to be detected are compared with the standard picture that prestores before, further includes: to described
Contour images to be detected and the standard picture carry out contraposition processing.It first treats detection contour images and standard picture is aligned
Processing, it is possible to reduce due to article in contour images to be detected and standard picture shadow of the position deviation to Articles detecting result
It rings, to effectively promote the accuracy and reliability of comparing result.
In addition, described carry out contraposition processing to the contour images to be detected and the standard picture, specifically includes: prestoring
The standard location information of at least two calibration points in the standard picture；The standard point is obtained in the contour images to be detected
In location information to be detected；Go out translation matrix and rotation according to the standard location information and the positional information calculation to be detected
Torque battle array carries out pair the contour images to be detected and the standard picture according to the translation matrix and the spin matrix
Position processing.
In addition, described the contour images to be detected are compared with the standard picture prestored, sentenced according to comparison result
Whether the article to be detected that breaks is qualified, specifically includes: obtaining contraposition treated contour images to be detected and the mark
The area of quasi- image not overlapping region is as area to be detected；Judge whether the area to be detected is greater than preset area threshold value；
If it is not, then determining that the article to be detected is qualified；If so, determining that the article to be detected is unqualified.
In addition, described the contour images to be detected are compared with the standard picture prestored, sentenced according to comparison result
Whether the article to be detected that breaks is qualified, specifically includes: it is similar to the standard picture to obtain the contour images to be detected
Degree；Judge whether the similarity is greater than preset threshold；If so, determining that the article to be detected is qualified；If it is not, then determining institute
It is unqualified to state article to be detected.
In addition, the contour images to be detected that the article to be detected is obtained from described image to be detected, specifically:
According to the color and luminance difference at position each in described image to be detected, the interior of background color and the article to be detected is eliminated
Portion's color retains the profile of the article to be detected as the contour images to be detected.
In addition, the image for obtaining article to be detected is specifically included as image to be detected: being filled by the camera shooting
It sets, using the image of article to be detected described in default viewing angles as described image to be detected.
In addition, described obtain the article predetermined angle to be detected by the photographic device, to preset viewing angles
Before image is as described image to be detected, further includes: obtain the image aspects of the standard picture as the default visual angle.It obtains
Take the image aspects of standard picture as default visual angle, to guarantee the image aspects of image to be detected and the image of standard picture
Visual angle is identical, reduces influence of the shooting angle to Articles detecting result, the further accuracy for promoting Articles detecting and reliable
Property.
Detailed description of the invention
Fig. 1 is the program flow diagram of article detection method provided by first embodiment of the invention；
Fig. 2 is the structural representation of contour images to be detected in article detection method provided by first embodiment of the invention
Figure；
Fig. 3 is the program flow diagram of article detection method provided by second embodiment of the invention；
Fig. 4 is the structural schematic diagram of mobile terminal provided by third embodiment of the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to each reality of the invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the present invention,
In order to make the reader understand this application better, many technical details are proposed.But even if without these technical details and base
In the various changes and modifications of following embodiment, the application technical solution claimed also may be implemented.
The first embodiment of the present invention is related to a kind of article detection methods, applied to the mobile end with photographic device
End, as shown in Figure 1, comprising the following steps:
Step S101: the image of article to be detected is obtained as image to be detected.
Specifically, in this step, being made by the image that photographic device possessed by mobile terminal obtains article to be detected
For image to be detected.
Preferably, in this step, by photographic device, to preset the image of viewing angles article to be detected as to be checked
Altimetric image.In the present embodiment, visual angle is the angle of the imaging plane of photographic device and the extension plane of article to be detected.By
When photographic device shoots the image of article to be detected, i.e., same to be detected article related with shooting visual angle at image, shooting
Visual angle is different, then institute is also different at image, to preset the image of viewing angles article to be detected, it is ensured that image to be detected is not
It is influenced by shooting visual angle, to promote Articles detecting accuracy and reliability.
More preferably, in the present embodiment, presetting visual angle is 180 degree.Default visual angle is 180 degree, then photographic device is shot
Image to be detected be that article to be detected faces image so that in image to be detected the dimension scale of each feature with it is to be detected
The actual size ratio of article is identical, further to promote Articles detecting accuracy and reliability.It is understood that default view
Angle is that 180 degree is only a kind of specific for example, restriction is not constituted, in other embodiment party of the invention in present embodiment
In formula, default visual angle is also possible to other values, herein without enumerating, can specifically be selected according to actual needs.
More preferably, in this step, the image aspects of standard picture are obtained as default visual angle.Image aspects, that is, standard drawing
The angle of object extending direction and standard picture as in.The image aspects of standard picture are obtained as default visual angle, so as to
Detection image is identical as the image aspects of standard picture, reduces influence of the shooting visual angle to image to be detected and standard picture, into
The promotion Articles detecting accuracy of one step and reliability.
Step S102: the contour images to be detected of article to be detected are obtained from image to be detected.
Specifically, in this step, as shown in Fig. 2, according to the color and luminance difference at position each in image to be detected,
The internal color of background color and the article to be detected is eliminated, retains the profile of the article to be detected as described to be detected
Contour images.
Step S103: contour images to be detected are compared with the standard picture prestored, according to comparison result judge to
Whether qualified detect article.
Specifically, in this step, the standard picture prestored is the contour images of conforming articls.It is understood that pre-
The one kind contour images of conforming articls are deposited as standard picture be only present embodiment Plays image it is specific for example,
It does not constitute and limits, in other embodiments of the present invention, standard picture is also possible to the detail of design etc. of article to be detected,
Herein without enumerating, specifically can flexibly be set according to actual needs.
Preferably, in this step, the standard picture prestored is the detail of design of article to be detected.Prestore article to be detected
Detail of design as standard picture, generated error when obtaining standard picture can be eliminated, to further promote object
Product accuracy in detection and reliability.
Specifically, in this step, judging whether article to be detected is qualified according to comparison result, specifically, obtaining contraposition
The area of treated contour images to be detected and the standard picture not overlapping region is as area to be detected；Judge institute
State whether area to be detected is greater than preset area threshold value；If it is not, then determining that the article to be detected is qualified；If so, determining institute
It is unqualified to state article to be detected.Object to be detected is judged according to comparing result it is understood that above are only in present embodiment
Whether qualified product one kind be specific to limit for example, not constituting, in other embodiments of the present invention, according to comparison
As a result judge article to be detected it is whether qualified be also possible to obtain the contour images to be detected it is similar to the standard picture
Degree；Judge whether the similarity is greater than preset threshold；If so, determining that the article to be detected is qualified；If it is not, then determining institute
It is unqualified to state article to be detected；Herein without enumerating, specifically can flexibly be selected according to actual needs.
Compared with prior art, article detection method provided by embodiment of the present invention passes through the shifting with photographic device
Dynamic terminal carries out Articles detecting, compared to the prior art in the article detection method that is compared by human eye, can be effective
The operating process for simplifying Articles detecting, saves labour turnover；Since mobile terminal not will receive the influence of the factors such as artificial fatigue,
The efficiency of Articles detecting and the reliability of testing result and accuracy can effectively be promoted；In addition, being carried out by mobile terminal
Articles detecting can effectively promote the scope of application of article detection method provided by embodiment of the present invention.
Second embodiment of the present invention is related to a kind of article detection method.Second embodiment is big with first embodiment
Cause identical, specific steps are as shown in Figure 3, comprising:
Step S201: the image of article to be detected is obtained as image to be detected.
Step S202: the contour images to be detected of article to be detected are obtained from image to be detected.
It should be noted that the step S201 and step S202 in present embodiment and the step in first embodiment
S101 and step S102 are roughly the same, are specifically referred to illustrating in first embodiment, are no longer repeated herein.
Step S203: detection contour images are treated with the standard picture prestored and carry out contraposition processing.
Specifically, in this step, the standard location information of at least two calibration points in pre-stored criteria image；Acquisition standard
To be detected location information of the point in contour images to be detected；Gone out according to standard location information and positional information calculation to be detected flat
Matrix and spin matrix are moved, detection contour images are treated according to translation matrix and spin matrix and standard picture carries out at contraposition
Reason.
Step S204: contour images to be detected are compared with the standard picture prestored, according to comparison result judge to
Whether qualified detect article.
It should be noted that the step S204 in present embodiment and the step S103 substantially phase in first embodiment
Together, it is specifically referred to illustrating in first embodiment, is no longer repeated herein.
Compared with prior art, article detection method provided by second embodiment of the invention is retaining the first embodiment party
While whole technical effects of formula, before contour images to be detected are compared with the standard picture prestored, to be detected
Contour images and the standard picture prestored carry out contraposition processing, it is possible to reduce since article is in contour images to be detected and standard drawing
Influence of the position deviation to Articles detecting result as in, to effectively promote the accuracy and reliability of comparing result.
The step of various methods divide above, be intended merely to describe it is clear, when realization can be merged into a step or
Certain steps are split, multiple steps are decomposed into, as long as comprising identical logical relation, all in the protection scope of this patent
It is interior；To adding inessential modification in algorithm or in process or introducing inessential design, but its algorithm is not changed
Core design with process is all in the protection scope of the patent.
Third embodiment of the invention is related to a kind of mobile terminal, as shown in figure 4, comprising: photographic device 401, for obtaining
Take the image of article to be detected as image to be detected；The image processing apparatus 402 communicated to connect with photographic device 401, image
Processing unit 402 is used to receive image to be detected from photographic device 401, and obtain from image to be detected article to be detected to
Detect contour images；The processor 403 communicated to connect with image processing apparatus 402, processor 403 are used for from image processing apparatus
402 receive contour images to be detected, and contour images to be detected are compared with the standard picture prestored, judge object to be detected
Whether product are qualified；The memory 404 communicated to connect with processor 403, memory 404 is for storing standard picture；Wherein, standard
Image is the contour images of conforming articls or the detail of design of article to be detected.
It is not difficult to find that present embodiment is system embodiment corresponding with first embodiment, present embodiment can be with
First embodiment is worked in coordination implementation.The relevant technical details and technical effect mentioned in first embodiment are in this embodiment party
In formula still effectively, in order to reduce repetition, which is not described herein again.Correspondingly, the relevant technical details mentioned in present embodiment
It is also applicable in first embodiment.
It is noted that each module involved in present embodiment is logic module, and in practical applications, one
A logic unit can be a physical unit, be also possible to a part of a physical unit, can also be with multiple physics lists
The combination of member is realized.In addition, in order to protrude innovative part of the invention, it will not be with solution institute of the present invention in present embodiment
The technical issues of proposition, the less close unit of relationship introduced, but this does not indicate that there is no other single in present embodiment
Member.
Preferably, in the present embodiment, the standard picture that processor 403 is also used to treat detection contour images and prestores
Carry out contraposition processing.
Four embodiment of the invention is related to a kind of computer readable storage medium, is stored with computer program.Computer
Above method embodiment is realized when program is executed by processor.
That is, it will be understood by those skilled in the art that implement the method for the above embodiments be can be with
Relevant hardware is instructed to complete by program, which is stored in a storage medium, including some instructions are to make
It obtains an equipment (can be single-chip microcontroller, chip etc.) or processor (processor) executes side described in each embodiment of the application
The all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention,
And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (10)
1. a kind of article detection method, which is characterized in that applied to the mobile terminal with photographic device, comprising:
The image of article to be detected is obtained as image to be detected；
The contour images to be detected of the article to be detected are obtained from described image to be detected；
The contour images to be detected are compared with the standard picture prestored, the object to be detected is judged according to comparison result
Whether product are qualified；
Wherein, the standard picture is the contour images of conforming articls or the detail of design of the article to be detected.
2. article detection method according to claim 1, which is characterized in that described by the contour images to be detected and pre-
Before the standard picture deposited compares, further includes:
Contraposition processing is carried out to the contour images to be detected and the standard picture.
3. article detection method according to claim 2, which is characterized in that described to the contour images to be detected and institute
It states standard picture and carries out contraposition processing, specifically include:
Prestore the standard location information of at least two calibration points in the standard picture；
Obtain to be detected location information of the standard point in the contour images to be detected；
Go out translation matrix and spin matrix according to the standard location information and the positional information calculation to be detected, according to described
Translation matrix and the spin matrix carry out contraposition processing to the contour images to be detected and the standard picture.
4. article detection method according to claim 2, which is characterized in that described by the contour images to be detected and pre-
The standard picture deposited is compared, and judges whether the article to be detected is qualified, specifically includes according to comparison result:
The area of contraposition treated contour images to be detected and the standard picture not overlapping region is obtained as to be checked
Survey area；
Judge whether the area to be detected is greater than preset area threshold value；
If it is not, then determining that the article to be detected is qualified；
If so, determining that the article to be detected is unqualified.
5. article detection method according to claim 1, which is characterized in that described by the contour images to be detected and pre-
The standard picture deposited is compared, and judges whether the article to be detected is qualified, specifically includes according to comparison result:
Obtain the similarity of the contour images to be detected and the standard picture；
Judge whether the similarity is greater than preset threshold；
If so, determining that the article to be detected is qualified；
If it is not, then determining that the article to be detected is unqualified.
6. article detection method according to claim 1, which is characterized in that described to obtain institute from described image to be detected
The contour images to be detected of article to be detected are stated, specifically:
According to the color and luminance difference at position each in described image to be detected, background color and the article to be detected are eliminated
Internal color, retain the profile of the article to be detected as the contour images to be detected.
7. article detection method according to claim 1, which is characterized in that the image conduct for obtaining article to be detected
Image to be detected specifically includes:
By the photographic device, to preset the image of article to be detected described in viewing angles as described image to be detected.
8. article detection method according to claim 7, which is characterized in that it is described by the photographic device, to preset
Before viewing angles obtain the image of the article predetermined angle to be detected as described image to be detected, further includes:
The image aspects of the standard picture are obtained as the default visual angle.
9. a kind of mobile terminal characterized by comprising
Photographic device, for obtaining the image of article to be detected as image to be detected；
With the image processing apparatus of photographic device communication connection, described image processing unit from the photographic device for connecing
Described image to be detected is received, and obtains the contour images to be detected of the article to be detected from described image to be detected；
With the processor of described image processing unit communication connection, the processor is used to receive institute from described image processing unit
Contour images to be detected are stated, and the contour images to be detected are compared with the standard picture prestored, are judged described to be checked
Whether qualified survey article；
The memory connecting with the processor communication, the memory is for storing the standard picture；
Wherein, the standard picture is the contour images of conforming articls or the detail of design of the article to be detected.
10. a kind of computer readable storage medium, is stored with computer program, which is characterized in that the computer program is located
Reason device realizes article detection method described in any item of the claim 1 to 8 when executing.
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| CN201910412615.8A CN110136123A (en) | 2019-05-17 | 2019-05-17 | Article detection method, mobile terminal and computer readable storage medium |
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Application publication date: 20190816 |