CN101915823A - Ultraviolet detection method for shell bacteria-carrying eggs and device thereof - Google Patents
Ultraviolet detection method for shell bacteria-carrying eggs and device thereof Download PDFInfo
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Abstract
The invention discloses an automatic detection method for shell bacteria-carrying eggs and a device thereof. The purpose of intelligent and non-destructive detection of the shell bacteria-carrying eggs is fulfilled by using the machine vision technology through a series of image processing and establishment of an identification mode. The method comprises the following steps of: shooting reflected ultraviolet images of the detected poultry eggs by using a digital camera, transmitting information to a computer through an image acquisition card, performing a series of image processing by the computer, and then establishing an automatic identification mode according to the statistical data and the set related parameters. The device for implementing the method consists of a detection point, a camera bellows, an ultraviolet light source, the digital camera and the computer. Whether the egg shells carry bacteria is identified by using an ultraviolet lamp as a light source, using black color for the camera bellows as a background, acquiring the images of the eggs in the camera bellows under the irradiation of the ultraviolet light source through the camera and establishing the identification mode. The method and the device realize non-destructive automatic detection of the shell bacteria-carrying eggs difficultly identified by naked eyes, the accuracy reaches 99 percent, and the method and the device are applied to the egg product processing and quality detection industry.
Description
Technical field
The invention belongs to birds, beasts and eggs detection technique field, be specifically related to a kind of method and apparatus of quality of poultry eggs Non-Destructive Testing, the present invention utilizes a pick-up unit and an image acquisition and a processing unit that constitutes with computing machine, image pick-up card and digital camera, identification rapidly and accurately has bacterial plaque egg and clean egg, for the supermarket that enters of clean agricultural product provides a kind of green test technology.
Background technology
The birds, beasts and eggs case surface is dirty have a variety of, obviously dirty as dirt, ight soil, blood cake, feather etc., these are found easily, but the under cover a large amount of bacteriums of many eggshell surfaces are arranged, and naked eyes but are difficult to find, the bright and new birds, beasts and eggs of the shell that has are so unclean, if female bird infects intestines problem, egg eggshell surface under it carries the germs of a disease usually, and these germs that attach at eggshell surface enter birds, beasts and eggs inside easily, influence the birds, beasts and eggs edible safety.The egg that carries disease germs belongs to dirty egg, and country will put into effect relevant birds, beasts and eggs security quality standard, and the shell dirty egg that carries disease germs needs to reject, and could go on the market behind cleaning and sterilizing.Therefore, it is of crucial importance to seek a kind of method and apparatus that detects shell bacteria-carrying eggs effectively.
The existing document of retrieval still finds no the green test technology whether the birds, beasts and eggs shell contains bacterium that detects of closing.
Summary of the invention
The objective of the invention is to overcome the defective of prior art, the utilization machine vision technique by a series of Flame Image Process and set up recognition mode, is realized the purpose to shell bacteria-carrying eggs intelligence, Non-Destructive Testing.This method utilizes digital camera to take the light reflection ultraviolet image of tested birds, beasts and eggs, by image pick-up card information is sent to computing machine, and computing machine carries out a series of images to be handled, and sets up automatic identification model according to the correlation parameter of statistics and setting then.The device of realization said method is made up of camera bellows, ultraviolet source, camera, the computing machine of birds, beasts and eggs check point, band door.Adopt special ultraviolet light as light source, camera bellows obtains the image of birds, beasts and eggs under the ultraviolet lamp tube irradiation in the camera bellows with camera with black as a setting, discerns eggshell by the discrimination model of setting up and whether carries disease germs.The present invention has realized that the harmless of the impalpable shell bacteria-carrying eggs of naked eyes detects automatically.Be applicable to egg product processing and Quality Detection industry.
Evidence: detection method of the present invention and install reasonable in design feasiblely, easy and simple to handle, effect is obvious, during the egg product that this method and device can be applied to other simultaneously detects, has the application prospect.
Technical scheme of the present invention is as follows:
A kind of detection egg shell method of whether carrying disease germs, its step is as follows:
1) left and right two walls in the camera bellows (3) that an inwall is a black respectively level wavelength is housed is 256nm, power is the ultraviolet source (2) of 12w, a CCD digital camera (4) is equipped with in the center above described camera bellows, link to each other with image pick-up card by data line, described image pick-up card is inserted in computing machine (5) slot, be provided with a check point (1) in the bottom of described camera bellows, this check point be positioned at CCD digital camera (4) camera lens under, this check point is used to place egg to be detected;
2) take the ultraviolet image of being examined egg with described CCD digital camera, and these ultraviolet image data are sent in the described image pick-up card, computing machine reads this ultraviolet image data of being examined egg from described image pick-up card;
3) extract the carry disease germs characteristic parameter in zone of the egg that carries disease germs, with the carry disease germs detection template of egg of foundation, take following steps to carry out: computing machine utilizes image processing software, respectively the rgb value of being examined the egg ultraviolet image is carried out grey level histogram adjustment, contrast enhancing, medium filtering, make that the bacterial plaque feature of image is obvious, choose 200 unique points in egg bacterial plaque place of carrying disease germs again, statistical computation goes out the maximal value and the minimum value of the RGB of bacterial plaque place component then, and egg feature templates parameter promptly obtains carrying disease germs;
4) utilize image processing software, respectively the rgb value of being examined the egg ultraviolet image is carried out gray scale and adjust, the pre-service of medium filtering;
5) R, G, the B component of being examined the egg image are filled processing, make R, the G of the pixel of coincidence detection template parameter condition in the image, B value all become a certain constant;
6) carried out whole detection to examining the egg image, 5 * 5 matrix templates are set, the rgb value in a certain 5 * 5 matrixes in the image all equals 5) described constant, show that this egg carries disease germs, otherwise, show that then this egg is aseptic, whether carry disease germs to judge its shell.
In order to realize said method, the invention provides a kind of ultraviolet detector that is used for shell bacteria-carrying eggs.It by the check point of being examined egg, ultraviolet source, have the door camera bellows, CCD digital camera, image pick-up card and computing machine form.It is the parallel ultraviolet of 256nm that described ultraviolet source produces wavelength, described camera is to be furnished with the digital camera of obtained egg shell digital picture of ccd sensor (available from CANON, product type: Canon Powershot A640), described computer is furnished with image acquisition board, be equipped with the image capture software that digital camera carries (available from CANON, product type: CanonPowershot A640).Above-mentioned digital camera and other components and parts can be purchased from the market and obtain.
The ins and outs of device of the present invention are such:
A kind ofly detect the device whether the egg shell carries disease germs, it comprises a detection case, and it also comprises ultraviolet source, CCD digital camera, image pick-up card and computing machine; Described detection case is the camera bellows (3) that an inwall is a black, its side has chamber door (6), left side in described camera bellows (3), wavelength is installed is 256nm to the level correspondence on right two walls, power is the ultraviolet source (2) (about each) of 12w, the center, top of described camera bellows (3) is provided with the hole that CCD digital camera (4) camera lens is passed, the CCD digital camera links to each other with image pick-up card by data line, described image pick-up card is inserted in computing machine (5) slot, be provided with a check point (1) in the bottom of described camera bellows, this check point be positioned at digital camera (4) camera lens under, described check point is used to place egg to be detected (or claiming to be examined egg), examined the switch of egg by chamber door (6) and be put into or be removed detection case, described device is by image acquisition units, graphics processing unit, image transmitting unit and image-display units (graphoscope) constitute (shown in accompanying drawing 1).
Method and apparatus provided by the invention can be realized fast for shell bacteria-carrying eggs, and is accurately, convenient, automatically, harmless detection is through practice examining, detect rate of accuracy reached to 99%, improve the edible safety of birds, beasts and eggs greatly, for clean egg input supermarket provides a kind of green test technology.
Description of drawings
Fig. 1: be Flame Image Process of the present invention and pattern discrimination process flow diagram.
Fig. 2: the ultraviolet detector block diagram that is shell bacteria-carrying eggs of the present invention.Number definition is as follows among the figure: 1-check point (egg to be measured is examined egg); The 2-ultraviolet source; The 3-camera bellows; The 4-CCD digital camera; The 5-computing machine; The 6-chamber door.
Fig. 3: the actual detected design sketch that is the same piece of egg that carries disease germs among the present invention in fact.Same piece is carried disease germs egg under three kinds of Different Light irradiations, demonstrate three kinds of different images features: a figure left side is general nature light reflected light image, it among the figure incandescent lamp transmitted light images, the figure right side is ultraviolet reflectance light image of the present invention, this shows that the egg that carries disease germs adopts the present invention to be detected rapidly and accurately.
Embodiment
Embodiment 1
A kind of detection egg shell method of whether carrying disease germs, its step is as follows:
1) left and right two walls in the camera bellows (3) that an inwall is a black respectively level wavelength is housed is 256nm, power is the ultraviolet source (2) of 12w (voltage is 220V), a CCD digital camera (4) is equipped with in the center above described camera bellows, link to each other with image pick-up card by data line, described image pick-up card is inserted in computing machine (5) slot, be provided with a check point (1) in the bottom of described camera bellows, this check point be positioned at CCD digital camera (4) camera lens under, this check point is used to place egg to be detected;
2) take the ultraviolet image of being examined egg with described CCD digital camera, and these ultraviolet image data are sent in the described image pick-up card, computing machine reads this ultraviolet image data of being examined egg from described image pick-up card;
3) extract the carry disease germs characteristic parameter in zone of the egg that carries disease germs, with the carry disease germs detection template of egg of foundation, take following steps to carry out: computing machine utilizes image processing software, respectively the rgb value of being examined the egg ultraviolet image is carried out grey level histogram adjustment, contrast enhancing, medium filtering, make that the bacterial plaque feature of image is obvious, choose 200 unique points in egg bacterial plaque place of carrying disease germs again, statistical computation goes out the maximal value and the minimum value of the RGB of bacterial plaque place component then, and egg feature templates parameter promptly obtains carrying disease germs;
4) utilize image processing software, respectively the rgb value of being examined the egg ultraviolet image is carried out gray scale and adjust, the pre-service of medium filtering;
5) R, G, the B component of being examined the egg image are filled processing, make R, the G of the pixel of coincidence detection template parameter condition in the image, B value all become a certain constant;
6) carried out whole detection to examining the egg image, 5 * 5 matrix templates are set, the rgb value in being examined the egg image in a certain 5 * 5 matrixes all equals the described constant of step 5), shows that this is examined egg and carries disease germs, otherwise, show that then being examined egg is clean egg.
In order to realize said method, the invention provides a kind of ultraviolet detector that is used for shell bacteria-carrying eggs.It is made up of the check point of being examined egg, ultraviolet source, camera bellows, CCD digital camera, image pick-up card and computing machine.It is the parallel ultraviolet of 256nm that described ultraviolet source produces wavelength, described camera is to be furnished with the digital camera of obtained egg shell digital picture of ccd sensor (available from CANON, product type: Canon Powershot A640), described computer is furnished with image acquisition board, be equipped with the image capture software that digital camera carries (available from CANON, product type: Canon PowershotA640).Above-mentioned digital camera and other components and parts can be purchased from the market and obtain.
The ins and outs of device of the present invention are such: a kind ofly detect the device whether the egg shell carries disease germs, it comprises a detection case, and it also comprises ultraviolet source, CCD digital camera, image pick-up card and computing machine; Described detection case is the camera bellows (3) that an inwall is a black, its side has chamber door (6), left side in described camera bellows (3), wavelength is installed is 256nm to the level correspondence on right two walls, power is the ultraviolet source (2) of 12w, the center, top of described camera bellows (3) is provided with the hole that CCD digital camera (4) camera lens is passed, the CCD digital camera links to each other with image pick-up card by data line, described image pick-up card is inserted in computing machine (5) slot, be provided with a check point (1) in the bottom of described camera bellows, this check point be positioned at digital camera (4) camera lens under, described check point is used to place egg to be detected, examined the switch of egg by chamber door (6) and be put into or be removed detection case, described device is by image acquisition units, image transmitting unit, graphics processing unit and image-display units (graphoscope) constitute.
Under identical shooting condition, the maximum differential of carry disease germs egg and clean egg is on the luminance difference of the G of bacterial plaque, two components of B.After a series of images processing, this color distortion can be more obvious, this also is the key point that egg can be automatically recognized of carrying disease germs, as long as the color characteristic of bacterial plaque fluorescence area is contained in certain zone in the width of cloth egg image, so just judges that this piece egg carries disease germs.In the present embodiment, if the template zone of setting is too small, differentiate then that the result is subject to picture noise influence and processing speed is slow, therefore the applicant sets one 5 * 5 matrix square according to actual needs, if the pixel in this matrix square all satisfies the condition of a pixel of carrying disease germs, so just judge that this egg carries disease germs.
Correlation parameter according to statistics and setting is set up detecting pattern, pattern contains the matrix of the field color parameter of carrying disease germs, when containing the matrix that meets the setting pattern in the matrix of the pixel representative of birds, beasts and eggs image, system judges that this piece egg carries disease germs, otherwise then is clean egg.Based on this, the present invention sets up corresponding automatic identification model by technology path shown in Figure 1, and the detailed process of this recognition mode is:
(1) computing machine reads in ultraviolet image;
(2) respectively the rgb value of egg image is carried out gray scale adjustment, medium filtering etc. and adjust measure at interior image;
(3) R, G, the B component of image are filled processing, make R, the G of the pixel of coincidence detection template parameter condition in the image, B value all become a certain constant;
(4) image is carried out whole detection, 5 * 5 matrix templates are set, the rgb value in a certain 5 * 5 matrixes in the image all equals 5) described constant, show that this egg carries disease germs, otherwise, show that then egg is clean.
(5) detect the back and show that dialog box illustrates that tested egg is clean or carries disease germs.In order to guarantee accuracy, carry disease germs as long as there is qualified matrix just to judge on the image, ad hoc permanent several V=0, in case qualified matrix occurs, it ejects dialog box simultaneously with regard to assignment 1.
The device that the invention provides is as shown in Figure 2 always schemed.By figure (2), tested egg (1) is put into camera bellows (3) by chamber door (6), can be produced light source (2) irradiation that wavelength is the parallel ultraviolet of 256nm, digital camera (4) is taken tested egg simultaneously, and with the Digital Image Transmission of this acquisition in the computing machine of being furnished with image pick-up card (5), computing machine is differentiated tested egg and whether is the egg that carries disease germs through a series of image processing and analyzing, and provides corresponding dialog box demonstrate the result on display.
In order to check reliability of the present invention, the applicant provides the actual detected design sketch of the same piece of egg that carries disease germs as shown in Figure 3.Same piece is carried disease germs egg under three kinds of Different Light irradiations, demonstrate three kinds of different images features, a figure left side is a general nature light reflected light image, it among the figure incandescent lamp transmitted light images, the figure right side is ultraviolet reflectance light image of the present invention, this shows that the egg that carries disease germs adopts the method for the invention to be detected.
Above example is only unrestricted in order to technical scheme of the present invention to be described, those of ordinary skill in the art is to be understood that, technical scheme of the present invention is made amendment or is replaced on an equal basis, and does not break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the claim scope of the present invention.
Claims (4)
1. one kind is detected the egg shell method of whether carrying disease germs, and its step is as follows:
1) left and right two walls in the camera bellows (3) that an inwall is a black respectively level ultraviolet source (2) is housed, a CCD digital camera (4) is equipped with in the center above described camera bellows, link to each other with image pick-up card by data line, described image pick-up card is inserted in computing machine (5) slot, be provided with a check point (1) in the bottom of described camera bellows, this check point be positioned at CCD digital camera (4) camera lens under, this check point is used to place egg to be detected;
2) take the ultraviolet image of being examined egg with described CCD digital camera, and these ultraviolet image data are sent in the described image pick-up card, computing machine reads this ultraviolet image data of being examined egg from described image pick-up card;
3) extract the carry disease germs characteristic parameter in zone of the egg that carries disease germs, with the carry disease germs detection template of egg of foundation, take following steps to carry out: computing machine utilizes image processing software, respectively the rgb value of being examined the egg ultraviolet image is carried out grey level histogram adjustment, contrast enhancing, medium filtering, make that the bacterial plaque feature of image is obvious, choose 200 unique points in egg bacterial plaque place of carrying disease germs again, statistical computation goes out the maximal value and the minimum value of the RGB of bacterial plaque place component then, and egg feature templates parameter promptly obtains carrying disease germs;
4) utilize image processing software, respectively the rgb value of being examined the egg ultraviolet image carried out gray scale and adjust, the pre-service of medium filtering:
5) R, G, the B component of being examined the egg image are filled processing, make R, the G of the pixel of coincidence detection template parameter condition in the image, B value all become a certain constant;
6) carried out whole detection to examining the egg image, 5 * 5 matrix templates are set, differentiate and examined whether the rgb value in 5 * 5 matrixes all equals the described constant of step 5) in the egg image, if then examined egg and be the egg that carries disease germs.
2. method according to claim 1 is characterized in that, described ultraviolet source wavelength is 256nm, and power supply is 220V, 50Hz, and power is 12W.
3. be applicable to the isolated plant of the described method of claim 1, it comprises a detection case, it is characterized in that: it also comprises ultraviolet source, CCD digital camera, image pick-up card and computing machine; Described detection case is the camera bellows (3) that an inwall is a black, its side has chamber door (6), left side in described camera bellows (3), the level correspondence is equipped with ultraviolet source (2) on right two walls, the center, top of described camera bellows (3) is provided with the hole that CCD digital camera (4) camera lens is passed, the CCD digital camera links to each other with image pick-up card by data line, described image pick-up card is inserted in computing machine (5) slot, be provided with a check point (1) in the bottom of described camera bellows, this check point be positioned at digital camera (4) camera lens under, described check point is used to place egg to be detected, examined the switch of egg by chamber door (6) and be put into or be removed detection case, described device is by image acquisition units, the image transmission, cell picture processing unit and image-display units constitute.
4. device according to claim 3 is characterized in that, described ultraviolet source wavelength is 256nm, and power supply is 220V, 50Hz, and power is 12W.
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| CN201010223076.2A CN101915823B (en) | 2010-07-05 | 2010-07-05 | Ultraviolet detection method for shell bacteria-carrying eggs and device thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102323271A (en) * | 2011-06-13 | 2012-01-18 | 南通大学 | Tow blot information acquisition device |
| CN102692498A (en) * | 2012-06-11 | 2012-09-26 | 华中农业大学 | Automatic code reading device and automatic code reading method of sulfanilamide type medicine residue detecting reagent strip |
| CN102840831A (en) * | 2011-06-24 | 2012-12-26 | 上海瑞伯德智能***科技有限公司 | Vision measurement system for width of corner brace |
| CN103454285A (en) * | 2013-08-28 | 2013-12-18 | 南京师范大学 | Transmission chain quality detection system based on machine vision |
| CN104297439A (en) * | 2014-10-21 | 2015-01-21 | 南京农业大学 | Computer vision-based automatic identification detection method for double-yolked duck eggs |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323271A (en) * | 2011-06-13 | 2012-01-18 | 南通大学 | Tow blot information acquisition device |
| CN102840831A (en) * | 2011-06-24 | 2012-12-26 | 上海瑞伯德智能***科技有限公司 | Vision measurement system for width of corner brace |
| CN102692498A (en) * | 2012-06-11 | 2012-09-26 | 华中农业大学 | Automatic code reading device and automatic code reading method of sulfanilamide type medicine residue detecting reagent strip |
| CN102692498B (en) * | 2012-06-11 | 2014-11-12 | 华中农业大学 | Automatic code reading device and automatic code reading method of sulfanilamide type medicine residue detecting reagent strip |
| CN103454285A (en) * | 2013-08-28 | 2013-12-18 | 南京师范大学 | Transmission chain quality detection system based on machine vision |
| CN104297439A (en) * | 2014-10-21 | 2015-01-21 | 南京农业大学 | Computer vision-based automatic identification detection method for double-yolked duck eggs |
| CN104297439B (en) * | 2014-10-21 | 2019-09-13 | 南京农业大学 | A kind of double yellow duck egg automatic identification detection method based on computer vision |
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| CN101915823B (en) | 2014-02-26 |
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