CN104202587B - Three-dimensional multispectral insect device for identifying and recognition methods thereof - Google Patents
Three-dimensional multispectral insect device for identifying and recognition methods thereof Download PDFInfo
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- CN104202587B CN104202587B CN201410389395.9A CN201410389395A CN104202587B CN 104202587 B CN104202587 B CN 104202587B CN 201410389395 A CN201410389395 A CN 201410389395A CN 104202587 B CN104202587 B CN 104202587B
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Abstract
The present invention discloses three-dimensional multispectral insect device for identifying and recognition methods thereof, its three-dimensional multispectral insect device for identifying comprises: hand-held probe and two-pass video glasses, and described hand-held probe is provided with the first camera, second camera, the first video interface, the 2nd video interface, white light, LED, the first switch, control module and battery; Described three-dimensional multispectral insect device for identifying also comprises treatment facility, for the visible ray-near-infrared spectral reflectance according to insect and background objects, obtain the difference spectrum of the visible ray-near-infrared spectral reflectance of insect and background objects, ask for the wavelength of the preset range of difference spectrum peak value. When checking, export the light in maximum difference spectral limit by LED and irradiate testee, strengthen the contrast of insect and background, substantially increase the recall rate of insect. In addition, stereo-picture is generated by two-pass video glasses, it is possible to reduce plane patch or cavity and the obscuring of three-dimensional object, raising insect recall rate further.
Description
Technical field
The present invention relates to insect recognition technology field, in particular to the three-dimensional multispectral insect device for identifying of one and recognition methods thereof.
Background technology
In daily entry and exit Plant Quarantine works, often need to be checked by goods, it has been found that and catch insect wherein, prevent insect from importing into domestic with goods and transportation means, cause the massive losses of agroforestry.
Owing to a lot of insect has sematic color, under common white light, insect body colour and goods are close, or the mottled color of polypide and the mottled color of goods are easily obscured, and cause insect to be difficult to be found. When checking at present, the goods of open position, by daylight or light illumination, closes the goods of position by flashlight lighting, and its light used is white light, is subject to insect and the interference of background Confounding factors, cannot improve insect recall rate.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, it is an object of the invention to provide a kind of three-dimensional multispectral insect device for identifying and recognition methods thereof, utilize specific wavelength light to irradiate, make insect be different from background significantly, thus improve insect recall rate.
In order to achieve the above object, this invention takes following technical scheme:
A kind of three-dimensional multispectral insect device for identifying, comprise: hand-held probe and for receiving a left side, right video image forms the two-pass video glasses of stereo-picture, described hand-held probe is provided with the first camera for obtaining left video image, for obtaining the second camera of right video image, first video interface, 2nd video interface, white light, at least one LED of light for exporting in maximum difference spectral limit, for the first switch potentiometer of the light on and off and light and shade state that control white light, for the 2nd switch potentiometer of the light on and off and light and shade state that control LED, and battery, the video transmission line of described first camera connects two-pass video glasses by the first video interface, the video transmission line of second camera connects two-pass video glasses by the 2nd video interface, the positive pole of described battery connects the positive pole of the first camera and the positive pole of second camera, and the negative pole of the first camera and the negative pole of second camera connect the negative pole of battery, the positive pole of described battery is connected white light positive pole by the first switch potentiometer, is also connected the positive pole of LED by the 2nd switch potentiometer, and the negative pole of described white light and the negative pole of LED connect the negative pole of battery,
Described three-dimensional multispectral insect device for identifying also comprises treatment facility, for the visible ray-near-infrared spectral reflectance according to insect and background objects, obtain the difference spectrum of the visible ray-near-infrared spectral reflectance of insect and background objects, ask for the wavelength of the preset range of difference spectrum peak value.
In described three-dimensional multispectral insect device for identifying, described hand-held probe comprises the first mount pad, the 2nd mount pad and the 3rd mount pad, and described first mount pad and the 2nd mount pad and the 3rd mount pad card close; Described first camera is installed on described first mount pad, second camera is installed on described 2nd mount pad, and described first video interface, the 2nd video interface, white light, LED, the first switch potentiometer, the 2nd switch potentiometer and battery are installed on the 3rd mount pad.
Described three-dimensional multispectral insect device for identifying, described hand-held probe comprises the first mount pad, the 2nd mount pad and the 3rd mount pad, described solid multispectral insect device for identifying also comprises stereoscopic frame, described stereoscopic frame comprises bracing frame and the erecting frame vertical with bracing frame, described 3rd mount pad is installed in the centre of erecting frame, described first mount pad is separated with the 3rd mount pad dress with the 2nd mount pad, and is arranged on the both sides of erecting frame.
In described three-dimensional multispectral insect device for identifying, between the positive pole of the first camera and the positive pole of second camera and the positive pole of battery, or between the negative pole of the first camera and the negative pole of second camera and the negative pole of battery, it is in series with camera power switch.
In described three-dimensional multispectral insect device for identifying, described hand-held probe is also provided with photosensitive head and triode; One end of described photosensitive head connects the positive pole of battery, the base stage of the other end connecting triode of photosensitive head, and the collector electrode of described triode connects the positive pole of battery, and the emtting electrode of triode connects the positive pole of LED.
In described three-dimensional multispectral insect device for identifying, described first camera and second camera are can receive from seeing the camera to near-infrared band light by light.
Adopt a recognition methods for above-mentioned three-dimensional multispectral insect device for identifying, comprising:
A, the visible ray-near-infrared spectral reflectance being gathered insect and background objects by visible ray-infrared spectrophotometer, be saved in database;
B, the difference spectrum obtaining the visible ray-near-infrared spectral reflectance of insect and background objects, ask for the wavelength of difference spectrum peak value scope;
C, visible ray-near-infrared wavelength according to described peak value scope, be positioned at the LED of the wavelength of described peak value scope on described hand-held probe;
D, closedown white light, start LED and irradiate object under test;
E, obtain left and right video image respectively by the first camera and second camera, and transfer in two-pass video glasses and form stereo-picture.
In described recognition methods, described step B specifically comprises:
B1, the multiple individualities asking for insect of the same race and the background objects respectively average reflectance under same wavelength;
B2, calculate certain insect according to described average reflectance or the average reflectance spectra of certain background objects under each wavelength, form average reflection spectral curve;
B3, the difference asking for the average reflectance spectra of certain insect and certain background objects, calculate the difference of the average reflectance of insect and background objects under a certain wavelength, forms the difference spectrum of insect and background objects;
B4, the peak value obtaining difference spectrum, and the wavelength region at peak value 10% scope place, be saved in database.
Compared to prior art, the multispectral insect device for identifying of solid provided by the invention and recognition methods thereof, when checking, export the light in maximum difference spectral limit by LED and irradiate testee, strengthen the contrast of insect and background, substantially increase the recall rate of insect. In addition, stereo-picture is generated by two-pass video glasses, it is possible to reduce plane patch or cavity and the obscuring of three-dimensional object, the accuracy of raising insect detection further.
Accompanying drawing explanation
Fig. 1 is that in the three-dimensional multispectral insect device for identifying of the present invention, hand-held probe merges the structural representation used.
Fig. 2 is the structural representation that in the three-dimensional multispectral insect device for identifying of the present invention, hand-held probe separation uses.
Fig. 3 is the schematic circuit of the first better embodiment of the three-dimensional multispectral insect device for identifying of the present invention.
Fig. 4 is the schematic circuit of the 2nd better embodiment of the three-dimensional multispectral insect device for identifying of the present invention.
Fig. 5 is the recognition methods schema of the three-dimensional multispectral insect device for identifying of the present invention.
Fig. 6 be the three-dimensional multispectral insect device for identifying of the present invention recognition methods in difference spectrum peak value scope waveform diagram.
Fig. 7 is in the recognition methods of the present invention, the schematic diagram of the visible ray-near-infrared spectral reflectance of 16 kinds of fruit.
Fig. 8 is in the recognition methods of the present invention, the schematic diagram of the visible ray-near-infrared spectral reflectance of citrus fruit fly.
Fig. 9 is in the recognition methods of the present invention, the schematic diagram of the visible ray of fruit and citrus fruit fly-near infrared reflectivity difference spectrum.
Embodiment
The present invention provides a kind of three-dimensional multispectral insect device for identifying and recognition methods thereof, it is applicable to scene, port and carries out freight container, lorry, train, ship and aircraft examination, the agricultural-food and the relevant goods thereof that load it carry out insect detection, and are applicable to the investigation of farmland, fruit tree, gardens, green belt, injurious forest-insect.
For making the object of the present invention, technical scheme and effect clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment. It is to be understood that specific embodiment described herein is only in order to explain the present invention, it is not intended to limit the present invention.
Refer to Fig. 1, Fig. 2 and Fig. 3, the three-dimensional multispectral insect device for identifying of the present invention comprises: hand-held probe 10 and two-pass video glasses (not shown), described two-pass video glasses are connected with hand-held probe 10, form stereo-picture for receiving left and right video image.
Wherein, described hand-held probe 10 is provided with the first camera 101, second camera 102, first video interface (not shown), the 2nd video interface 103, white light D1, at least one LED D2 for the light that exports in maximum difference spectral limit, the first switch potentiometer KW1 for the light on and off and light and shade state that control white light D1, the 2nd switch potentiometer KW2 and battery BAT for the light on and off and light and shade state that control LED D2.
Described first camera 101 and second camera 102 all have zoom function, can manual regulation focal length and focusing, by regulating applicable focal length to obtain image clearly, the video transmission line of described first camera 101 connects the first channel of two-pass video glasses by the first video interface, the video transmission line of second camera 102 connects the second passage of two-pass video glasses by the 2nd video interface 103, namely two-pass video glasses also have two video lines, insert respectively in described first video interface and the 2nd video interface 103 and connect corresponding camera. The positive pole of described battery BAT connects the positive pole of the first camera 101 and the positive pole of second camera 102, and the negative pole of the first camera 101 and the negative pole of second camera 102 connect the negative pole of battery BAT. In the present embodiment, line between described first camera 101 and object under test, and angle is 12 degree between line between second camera 102 and object under test, the light of visible ray near infrared light wave band is received respectively by the first camera 101 and second camera 102, obtain in left and right video image input two-pass video glasses, can obtaining the strongest image of stereoscopic sensation, its image-forming principle refers to the associated description in " biological stereoscopic photograph ". The present invention passes through three-dimensional imaging, it is possible to reduce plane patch or cavity and the obscuring of three-dimensional object, it is to increase insect identification effect.
The positive pole of described battery BAT connects the positive pole of white light D1 by the first switch potentiometer KW1, and the negative pole of white light D1 connects the negative pole of battery BAT; Also connected the positive pole of LED D2 by the 2nd switch potentiometer KW2, the negative pole of LED D2 connects the negative pole of battery BAT. Because when checking, examination personnel need switching white light D1 and LED D2, compare the performance of object under two kinds of spectral illuminations, and described LED D2 is replaceable, and for exporting the light of narrowband wavelength, this narrowband wavelength is positioned at maximum difference spectral limit. Wherein, the light in maximum difference spectral limit may be visible ray also may be invisible light, and common wavelengths scope is 780��1000nm, and the light in this wavelength region can increase the contrast of insect and background, thus improves recall rate.
Owing to commercially available LED is except white light, being the narrow band light sending certain centre wavelength mostly, the general scope of narrow band light is at several within two, 30 nanometers (nm), and centre wavelength is the vertex of Sine distribution energy. The difference spectrum maximum value that the present invention records insect and plant background drops within 780��1000nm, but also have the maximum difference spectral limit of some insect-background objects not within the scope of this, so adopting centre wavelength to drop on the narrow-band LED of each group of maximum difference spectral limit, the LED of specific wavelength light can be exported, and LED can select multiple LED according to its wavelength region that can export, when detecting, final selecting an applicable LED, the present invention mainly uses centre wavelength to be the LED of 850nm.
In the present embodiment, described three-dimensional multispectral insect device for identifying also comprises treatment facility, this treatment facility can adopt computer, for the visible ray-near-infrared spectral reflectance according to insect and background objects, obtain the difference spectrum of the visible ray-near-infrared spectral reflectance of insect and background objects, ask for the wavelength of the preset range of difference spectrum peak value. Wherein, the wavelength of the preset range of difference spectrum peak value is the wavelength (as shown in Figure 6) of difference spectrum peak value �� 10% scope, and its account form also completes by hand computation, specifically sees the description in hereafter recognition methods part.
In the present embodiment, in the three-dimensional multispectral insect device for identifying of the present invention, camera power switch KW3 it is in series with between the positive pole of the first camera 101 and the positive pole of second camera 102 and the positive pole of battery BAT, or between the negative pole of the first camera 101 and the negative pole of second camera 102 and the negative pole of battery BAT, it is in series with camera power switch KW3, is controlled the working order of two cameras by power switch KW3.
Further, described hand-held probe 10 comprises the first mount pad 110, the 2nd mount pad 120 and the 3rd mount pad 130, described first mount pad 110 and the 2nd mount pad 120 and the card conjunction of the 3rd mount pad 130; Described first camera 101 is installed on described first mount pad 110, second camera is installed on described 2nd mount pad 120, and described first video interface, the 2nd video interface 103, white light D1, LED D2, the first switch potentiometer KW1, the 2nd switch potentiometer KW2, power switch KW3 and battery BAT are installed on the 3rd mount pad 130. Described battery is rechargeable cell, has charging jack on the 3rd mount pad.
In the present embodiment, first camera 101, second camera 102, white light D1 and LED D2 are all arranged at the front of hand-held probe 10, so that obtaining image and illumination, when the first mount pad 110 and the 2nd mount pad 120 and the 3rd mount pad 130 card close, the hand-held hand-held probe 10 of personnel need to be checked when checking and closely detect.
See also Fig. 2, the three-dimensional multispectral insect device for identifying of the present invention also comprises stereoscopic frame, described stereoscopic frame comprises bracing frame 105 and the erecting frame 106 vertical with bracing frame 105, described 3rd mount pad 130 is installed in the centre of erecting frame 106, described first mount pad 110 is arranged on the both sides of erecting frame after being separated with the 3rd mount pad 130 with the 2nd mount pad 120. This mode uses under being adapted at the distant occasion of object, it is possible to strengthen stereoscopic sensation.
When checking, the brightness of white light D1 is regulated by the first switch potentiometer KW1, or the brightness of LED D2 is regulated by the 2nd switch potentiometer KW2, insect (i.e. analyte) is made to be unlikely to cause light saturated by being strong illumination, avoid insect image that camera absorbs and background together albefaction, lose contrast; Or cause insect and background reflectance excessively little by being weak illumination.
Further, described first camera 101 and second camera 102 are to receive from seeing the camera to near-infrared band by light, as received from seeing CCD, CMOS etc. to near-infrared band by light. Because existing camera is in order to ensure the shooting effect of visible ray, infrared rays can be shielded, and the present invention mainly utilizes the narrow band light that LED D2 sends within the scope of 380��2500nm, adopt the first camera 101 and second camera 102 that visible ray and infrared light all can be received, obtain the reflected light image of LED illumination.
Further, 2nd better embodiment of the three-dimensional multispectral insect device for identifying of the present invention, also can automatically open LED, refer to Fig. 4, described hand-held probe is also provided with photosensitive head A1 and triode Q1, one end of described photosensitive head A1 connects the positive pole of battery BAT, the base stage of the other end connecting triode Q1 of photosensitive head A1, the collector electrode of described triode Q1 connects the positive pole of battery BAT, the emtting electrode of triode Q1 connects the positive pole of LED D2, and the negative pole of LED D2 connects the negative pole of battery BAT.
Photosensitive head A1 is photovaristor, for responding to light intensity, this photosensitive head A1 can select resistance when not sensing light to diminish, resistance becomes big photosensitive head when sensing light, described triode Q1 is NPN triode, when white light is opened or daytime, light was strong, photosensitive head receives light and does not light LED; When white light D1 closes or ambient is weak, photosensitive head A1 does not receive light resistance and diminishes, it makes the base stage voltage of triode Q1 raise, the triode Q1 conducting as base stage voltage ratio emitter voltage more than height 0.7V, photosensitive head A1 produces electrical signal after triode Q1 amplifies, and drives LED D2 to light. Between photosensitive head and the base stage of triode, now also can be connected in series a potentiometer to regulate the size of the electric current of triode, thus regulate the brightness of LED D2.
The present invention manually can control the lighting mode of LED D2 with automated manner, and examination personnel can select automated manner as required, only need to control the light on and off state of white light, can control the light on and off state of LED, intelligence degree height. Should be noted that, described photosensitive head A1 is also optional is used in that resistance when sensing light diminishes, resistance becomes big photosensitive head when not sensing light, now need at output termination phase inverter of photosensitive head A1, or NPN triode is replaced as PNP triode, thus makes triode Q1 conducting light LED D2 under dark environment.
The present invention also provides a kind of recognition methods adopting the multispectral insect device for identifying of above-mentioned solid, refers to Fig. 5, comprising:
S100, the visible ray-near-infrared spectral reflectance being gathered insect and background objects by visible ray-infrared spectrophotometer, be saved in database;
S200, the difference spectrum obtaining the visible ray-near-infrared spectral reflectance of insect and background objects, ask for the wavelength of difference spectrum peak value scope;
S300 ,-near-infrared wavelength can be seen by light according to described peak value scope, described hand-held probe is installed the LED that emission wavelength is positioned at described difference spectrum peak value scope;
S400, closedown white light, start LED and irradiate object under test;
S500, obtain left and right video image respectively by the first camera and second camera, and transfer in two-pass video glasses and form stereo-picture.
Described step S200 specifically comprises: the average reflectance of the multiple individualities 201, asking for insect of the same race and background objects respectively under same wavelength; 202, calculate certain insect or the background objects average reflectance spectra under each wavelength according to described average reflectance, form average reflection spectral curve; 203, ask for the difference of the average reflectance spectra of certain insect and certain background objects, calculate the difference of the average reflectance of insect and background objects under a certain wavelength, form the difference spectrum of insect and background objects; 204, obtaining the peak value of difference spectrum, and reach the wavelength region at peak value 10% scope place, be saved in database, its difference spectrum peak value scope is as shown in Figure 6.
In step 201, the average reflectance of multiple individualities of the average reflectance of the multiple individualities that need to ask for insect of the same race respectively under same wavelength and scenery of the same race under same wavelength, it is thus possible to calculate the average reflectance spectra under each wavelength of this kind of insect and this background objects respectively, form average reflection spectral curve respectively.
Owing to when once checking, the present invention may need to use LED to be multiple, finally confirm the LED that can send respective wavelength light is installed by step 300. In step S400, also regulate the brightness of LED by the 2nd switch potentiometer, finally make insect (i.e. analyte) be unlikely to cause light saturated by being strong illumination, avoid insect image that camera absorbs and background together albefaction, lose contrast; Or cause insect and background reflectance excessively little by being weak illumination.
The present embodiment is enumerated reflection spectrum and the difference of 16 kinds of fruit and citrus fruit fly. As shown in Figure 7, Figure 8 and Figure 9, in figures 7 and 9,16 kinds of fruit are respectively: A. longan, B. natsudaidai, C. sweetsop, D. apple, E. south of the Five Ridges Garcinia Bark, F. Hylocereus undatus, G. banana, H. Long Gong, I. mango, J. plum, K. lichee, L. rambutan, M. avocado, N. strawberry, O. cherry, P. vitis vinifera.
As can be seen from Figure 7, being surveyed fruit reflectance spectrum and all present an obvious main peak, maximum reflectivity is on average 79.78%, and maximum reflectivity wavelength is on average 849nm, peak wavelength is interval average at 777��896nm, it is seen that the reflectance peak of fruit is all in the position of near-infrared band low side.
Fig. 8 tests the reflectivity of 7 citrus fruit flies, reflectivity minimum 12%, the highest by 48%, calculates and obtains average reflectance spectra curve such as Fig. 8. In the test specification of 400��2500nm, reflection spectrum curve presents the tendency of mild rising, it does not have significantly peak and paddy; Wherein, minimum at 400nm place, the highest near 2220nm.
Wherein, when calculating fruit-insect reflectivity difference, various fruit and citrus fruit fly are at visible ray-near-infrared band reflectivity difference Rd: under for each wavelength, the average reflectance Rs of fruit subtracts the average reflectance Rb of citrus fruit fly, i.e. Rd=Rs-Rb, as can be seen from Figure 8, due at near-infrared band low region, fruit reflectivity all has a peak, and citrus fruit fly reflectivity is lower and steady, the wavelength region may of reflection differences spectrum peak 10% scope is on average at 777��896nm, and there were significant differences in this wavelength band for reflection citrus fruit fly and fruit reflectivity.
The present invention is mainly used in closely detecting whether there is insect on goods, and carry this three-dimensional multispectral insect device for identifying by examination personnel, come into detection region to detect, in order to obtain the insect image of big contrast, before detection according to testing the worm/background reflectance spectrum maximum difference region obtained in advance, load onto the lamp launching this wavelength region illumination, during detection, irradiate region to be measured.
Hereinafter the three-dimensional multispectral insect device for identifying use-pattern of the present invention is described in detail:
Examination personnel need to first come into examination district, makes conventional sense, opens white light naked eyes or observes whether examination position has worm by video eyeglasses through camera; Make special spectral detection afterwards, it is switched to special spectral patterns, namely close white light, light LED illumination, observed the image of the lower examination position of this LED illumination by video eyeglasses. The selection of LED, in advance according to the combination of insect and background (such as fruit), can find insect and the wavelength value of the maximum contrast range of background objects (i.e. difference spectrum peak value scope), chooses centre wavelength and at the narrow-band LED lamp of this position and install from database.
In sum, the present invention adopts the lamp element installing special spectrum to throw light on, the camera of two channels and video eyeglasses, and is strengthened the stereoscopic sensation of insect by three-dimensional vision imaging, it is achieved that following useful effect:
1, present invention employs special spectrum lamp element and irradiate region to be measured, it is possible to effectively strengthen the contrast of insect and background, form distinct insect image, help examination personnel to find insect fast, it is to increase examination speed.
2, by the camera of two channels and video eyeglasses, forming stereoscopic vision, elimination plane patch and hole are to the interference of insect identification, it is to increase find the accuracy of insect.
3, the camera that can receive infrared spectra is adopted, it is equipped with the video eyeglasses receiving and showing camera image, infrared image is changed into visible images, enables examination personnel watch the image of region of ultra-red, expand visible wavelengths interval, strengthen the ability finding insect.
It should be appreciated that for those of ordinary skills, it is possible to it is equal to according to the technical scheme of the present invention and invention design thereof and replaces or change, and all these are changed or replace the protection domain that all should belong to the claim appended by the present invention.
Claims (8)
1. the multispectral insect device for identifying of solid, it is characterized in that, comprise: hand-held probe and for receiving a left side, right video image forms the two-pass video glasses of stereo-picture, described hand-held probe is provided with the first camera for obtaining left video image, for obtaining the second camera of right video image, first video interface, 2nd video interface, white light, at least one LED of light for exporting in maximum difference spectral limit, for the first switch potentiometer of the light on and off and light and shade state that control white light, for the 2nd switch potentiometer of the light on and off and light and shade state that control LED, and battery, the video transmission line of described first camera connects two-pass video glasses by the first video interface, the video transmission line of second camera connects two-pass video glasses by the 2nd video interface, the positive pole of described battery connects the positive pole of the first camera and the positive pole of second camera, and the negative pole of the first camera and the negative pole of second camera connect the negative pole of battery, the positive pole of described battery is connected white light positive pole by the first switch potentiometer, is also connected the positive pole of LED by the 2nd switch potentiometer, and the negative pole of described white light and the negative pole of LED connect the negative pole of battery,
Described three-dimensional multispectral insect device for identifying also comprises treatment facility, for the visible ray-near-infrared spectral reflectance according to insect and background objects, obtain the difference spectrum of the visible ray-near-infrared spectral reflectance of insect and background objects, ask for the wavelength of the preset range of difference spectrum peak value.
2. the multispectral insect device for identifying of solid according to claim 1, it is characterised in that, described hand-held probe comprises the first mount pad, the 2nd mount pad and the 3rd mount pad, and described first mount pad and the 2nd mount pad and the 3rd mount pad card close; Described first camera is installed on described first mount pad, second camera is installed on described 2nd mount pad, and described first video interface, the 2nd video interface, white light, LED, the first switch potentiometer, the 2nd switch potentiometer and battery are installed on the 3rd mount pad.
3. the multispectral insect device for identifying of solid according to claim 1, it is characterized in that, described hand-held probe comprises the first mount pad, the 2nd mount pad and the 3rd mount pad, described solid multispectral insect device for identifying also comprises stereoscopic frame, described stereoscopic frame comprises bracing frame and the erecting frame vertical with bracing frame, described 3rd mount pad is installed in the centre of erecting frame, and described first mount pad is separated with the 3rd mount pad with the 2nd mount pad, and is arranged on the both sides of erecting frame.
4. the multispectral insect device for identifying of solid according to claim 2, it is characterized in that, between the positive pole of the first camera and the positive pole of second camera and the positive pole of battery, or between the negative pole of the first camera and the negative pole of second camera and the negative pole of battery, it is in series with camera power switch.
5. the multispectral insect device for identifying of solid according to claim 1, it is characterised in that, described hand-held probe is also provided with photosensitive head and triode; One end of described photosensitive head connects the positive pole of battery, the base stage of the other end connecting triode of photosensitive head, and the collector electrode of described triode connects the positive pole of battery, and the emtting electrode of triode connects the positive pole of LED.
6. the multispectral insect device for identifying of solid according to claim 1, it is characterised in that, described first camera and second camera are can receive from visible ray to the camera of near-infrared band light.
7. one kind adopts the recognition methods of the multispectral insect device for identifying of solid according to claim 1, it is characterised in that, comprising:
A, the visible ray-near-infrared spectral reflectance being gathered insect and background objects by visible ray-infrared spectrophotometer, be saved in database;
B, the difference spectrum obtaining the visible ray-near-infrared spectral reflectance of insect and background objects, ask for the wavelength of difference spectrum peak value scope;
C, visible ray-near-infrared wavelength according to described peak value scope, install the LED that emission wavelength is positioned at described peak value scope on described hand-held probe;
D, closedown white light, start LED and irradiate object under test;
E, obtain left and right video image respectively by the first camera and second camera, and transfer in two-pass video glasses and form stereo-picture.
8. recognition methods according to claim 7, it is characterised in that, described step B specifically comprises:
B1, the multiple individualities asking for insect of the same race and the background objects respectively average reflectance under same wavelength;
B2, calculate certain insect according to described average reflectance and the average reflectance spectra of certain background objects under each wavelength, form average reflection spectral curve;
B3, the difference asking for the average reflectance spectra of certain insect and certain background objects, calculate the difference of the average reflectance of insect and background objects under a certain wavelength, forms the difference spectrum of insect and background objects;
B4, the peak value obtaining difference spectrum, and the wavelength region at peak value 10% scope place, be saved in database.
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| CN102809429A (en) * | 2012-07-26 | 2012-12-05 | 中国科学院自动化研究所 | Multi-spectral imaging system and multi-spectral imaging method based on double cameras |
| CN202748312U (en) * | 2012-08-10 | 2013-02-20 | 深圳出入境检验检疫局动植物检验检疫技术中心 | Test rack for testing reflectance spectrum of insects |
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