CN106383132A - Radiation inspection system and method - Google Patents
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- CN106383132A CN106383132A CN201610903882.1A CN201610903882A CN106383132A CN 106383132 A CN106383132 A CN 106383132A CN 201610903882 A CN201610903882 A CN 201610903882A CN 106383132 A CN106383132 A CN 106383132A
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- 230000005855 radiation Effects 0.000 title claims abstract description 213
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- 238000007689 inspection Methods 0.000 title claims abstract description 11
- 238000003384 imaging method Methods 0.000 claims abstract description 231
- 230000003287 optical effect Effects 0.000 claims abstract description 142
- 238000006073 displacement reaction Methods 0.000 claims description 68
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- 238000012544 monitoring process Methods 0.000 claims description 27
- 238000012360 testing method Methods 0.000 claims description 16
- 230000033001 locomotion Effects 0.000 claims description 14
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- 238000001514 detection method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
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- 238000005859 coupling reaction Methods 0.000 description 4
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- 230000003068 static effect Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002601 radiography Methods 0.000 description 2
- 238000012552 review Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/20—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
- G01N23/203—Measuring back scattering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
- G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
- G01V5/22—Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
- G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
- G01V5/22—Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
- G01V5/222—Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays measuring scattered radiation
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Abstract
The invention discloses a radiation inspection system and method, wherein a radiation imaging device in the radiation inspection system can scan detected objects row by row so as to obtain a plurality of rows of scanned images of the detected objects; a visible light imaging device is used for optically imaging the detected objects in the radiation inspection process so as to obtain a plurality of optical images of the detected objects; and an image matching processor is used for establishing the corresponding relation between the row scanned image and the optical image which are corresponding to the same detected object on the basis of predetermined matching rules. Therefore, when a radiation image is displayed, an optical image corresponding to the radiation image can be synchronously displayed, so that security personnel can quickly determine the detected object corresponding to the radiation image.
Description
Technical field
The present invention relates to radiography field, more particularly to a kind of radiation checking system and method.
Background technology
Using radiant image, to vehicle and goods etc., large-scale target carries out checking to be the safety check technology of comparative maturity, according to
Image-forming principle is different, mainly has ray transmission imagery and ray scattering to be imaged two big class.Generally, transillumination imaging system is by least one
The ray that radiation source sends is collimated into the collimator of fladellum, at least string positioned at scanned by individual radiation source, least one set
The detector array of body opposite side, least one set are used for detecting mobile target scanned part arrival scan position sensor unit
Composition, existing many companies all kinds of vehicle/cargo scanning systems based on transmission imaging of release both at home and abroad.Be scattering into seems to pass through
Measure the photon scattering out from tested substance object is imaged.
Transmission image is that ray passes through checking matter asthenia to be detected by the detector positioned at object opposite side after subtracting and formed
Image, the transmission signal of ray reacted the information such as density and the thickness of illuminated object, can show the internal structure of object；Dissipate
Penetrating image is to be formed near the object scatter ray signal out of detector direction certain depth by checking matter, due to fried
In the low atomic number material such as medicine, drugs, the Compton scattering of ray is higher, and signal is higher in the picture for corresponding part, this
One characteristic is the key factor that backscattering technique obtains safety check application.
Because image-forming principle is different, the visible light frequency band image capture device such as transmission, dispersion image and photographic head, camera obtains
The optical imagery taking has significant difference.Briefly, transmission, dispersion image can only reflect checking matter appearance profile it is impossible to
Obtain in optical imagery as human eye it is observed that object color, the surface details feature such as texture, therefore security staff is very difficult
Transmission, dispersion image are mapped with actual checking matter, this can form adverse effect to safety check process, and particularly vehicular is swept
After the equipment of retouching completes scanning, in the case that tested vehicle or goods do not have specific identifier (as car plate) or order, according to scanning
Can there is certain difficulty positioning suspect object in image, for example, beneficial to back scattering scanning device, parked vehicle along the street is swept
Figure safety check is looked into again after retouching.Tested vehicle/goods image is bad with actual vehicle corresponding, it will impact is subsequently manual to be checked, afterwards
A series of enforcing laws such as review.
Thus, it is desirable to a kind of radiation image-forming system that can fast and effeciently determine object to be detected.
Content of the invention
Present invention is primarily targeted at providing a kind of radiant image system that can fast and effeciently determine object to be detected
System and method.
According to an aspect of the invention, it is provided a kind of radiation checking system, for having between object to be detected
In the case of having relative motion, radiation monitoring is carried out to it, this system includes：Radiation imaging apparatus, are used for scanning by column detected
Object, to obtain multiple column scan images of object to be detected, the direction of row is substantially perpendicular to the direction of relative motion；It can be seen that
Photoimaging equipment, has fixing relative position relation during radiation monitoring with radiation imaging apparatus, in radiation inspection
During looking into, optical imagery is carried out to object to be detected, to obtain one or more optical imagerys of object to be detected；Image
Join processor, for setting up column scan image and the optical imagery corresponding to same object to be detected based on predetermined matched rule
Between corresponding relation.
Preferably, images match processor can scanning imagery time based at least one column scan image and optical picture
The shooting time of picture, or form during at least one column scan image and object to be detected between based on radiation imaging apparatus
One relative position relation and visual light imaging device form the second relative position and object to be detected between during optical imagery and close
System, sets up the corresponding relation between column scan image and optical imagery.
Preferably, images match processor can integrate multiple column scan images based on the first relative position relation, with
To imaging scale close to actual reconstruction scanogram；And/or images match processor is based on the second relative position relation
Integrate multiple optical imagerys, to obtain imaging scale close to actual reconstruction optical imagery.
Preferably, this radiation checking system can also include：Positioner, for during radiation monitoring, with the 3rd
Frequency acquisition gathers the relative displacement data that radiation imaging apparatus are with respect to object to be detected, and wherein, radiation imaging apparatus are with the
One imaging frequency is scanned by column to object to be detected it is seen that photoimaging equipment is entered to object to be detected with the second imaging frequency
Row optical imagery, gathered before and after the scanning imagery time of column scan image based on positioner one of images match processor
Or multiple relative displacement data, determine the first relative position relation, based on positioner before and after the shooting time of optical imagery
One or more relative displacement data of collection, determine the second relative position relation.
Preferably, when the 3rd frequency acquisition is less than the first imaging frequency, images match processor is to multiple relative displacements
Data carries out interpolation calculation, to obtain the first relative position relation corresponding to each column scan image, and/or works as the 3rd
When frequency acquisition is equal to the first imaging frequency, images match processor determines the first relative position corresponding to multiple column scan images
Relation of putting is corresponded with multiple relative displacement data, and/or when the 3rd frequency acquisition is more than the first imaging frequency, figure
As matched-field processorses extract to multiple relative displacement data, to obtain the first relative position corresponding to each column scan image
Put relation.
Preferably, radiation imaging apparatus setting can be on moveable platform, and radiation imaging apparatus can be with removable
Platform moves integrally, and positioner can include encoder, and encoder is arranged at the travel mechanism of moveable platform.
Preferably, start to scan by column object to be detected in response to radiation imaging apparatus, encoder starts counting up, wherein,
Moveable platform often moves preset distance, and encoder is once counted.
Preferably, positioner can gather, with the 3rd frequency acquisition, the speed relatively that positioner is with respect to object to be detected
Degree, to obtain one or more relative velocity data, according to the 3rd frequency acquisition and relative velocity data, determines one or many
Individual relative displacement data.
Preferably it is seen that photoimaging equipment is line-scan digital camera, for by column optical imagery being carried out to object to be detected, when the
When three frequency acquisitions are less than the second imaging frequency, images match processor carries out interpolation calculation to relative displacement data, to obtain
The second relative position relation corresponding to each optical imagery, and/or when the 3rd frequency acquisition is equal to the second imaging frequency
When, images match processor determines the first relative position relation and multiple relative displacement data one corresponding to multiple optical imagerys
One is corresponding, and when the 3rd frequency acquisition is more than the second imaging frequency, images match processor extracts to relative displacement data,
To obtain the second relative position relation corresponding to each optical imagery.
Preferably it is seen that photoimaging equipment be area array cameras or camera head it is seen that photoimaging equipment in advance to tested
Survey object of reference at visual light imaging device same distance for the object to be imaged, to obtain reference picture picture, images match is processed
The display size of the object of reference in the actual size based on object of reference for the device and reference picture picture, determines imaging scale, images match
Processor determine formed optical imagery when visual light imaging device shoot optical center line with respect to object to be detected position,
And the second relative position relation corresponding to each column image in optical imagery is determined based on this position and imaging scale.
Preferably it is seen that photoimaging equipment is arranged on the Exit positions of the flying spot of radiation imaging apparatus or visible
Photoimaging equipment is positioned away from the Exit positions preset distance of the flying spot of radiation imaging apparatus.
Preferably, this radiation checking system can also include：GPS location equipment, for, during radiation monitoring, obtaining
The geographical location information of radiation imaging apparatus；And/or mark identification equipment, for, during radiation monitoring, identification is detected
The identification information of object.
According to another aspect of the present invention, additionally provide a kind of radiation testing method, for object to be detected it
Between there is relative motion in the case of radiation monitoring is carried out to it, the method includes：Using radiation imaging apparatus scan by column by
Detection object, to obtain multiple column scan images of object to be detected, the direction of row is substantially perpendicular to the direction of relative motion；
During radiation monitoring, using visual light imaging device, optical imagery is carried out to object to be detected, to obtain object to be detected
One or more optical imagerys, wherein, during radiation monitoring visual light imaging device and radiation imaging apparatus have solid
Fixed relative position relation；Set up column scan image and the optics corresponding to same object to be detected based on predetermined matched rule
Corresponding relation between image.
It is preferably based on predetermined matched rule and set up described column scan image and institute corresponding to same object to be detected
The step stating the corresponding relation between optical imagery can include：The scanning imagery time based at least one column scan image and
The shooting time of optical imagery, or based on radiation imaging apparatus formed during at least one column scan image with object to be detected it
Between the first relative position relation and visual light imaging device formed optical imagery when relative with second between object to be detected
Position relationship, sets up the corresponding relation between column scan image and optical imagery.
Preferably, the method can also include：Multiple column scan images are integrated based on the first relative position relation, to obtain
Imaging scale is close to actual reconstruction scanogram；And/or multiple optical imagerys are integrated based on the second relative position relation,
To obtain imaging scale close to actual reconstruction optical imagery.
Preferably, radiation imaging apparatus can be scanned by column to object to be detected with the first imaging frequency, optical picture
As imaging device can carry out optical imagery with the second imaging frequency to object to be detected, the method can also include：In radiation
Using positioner, the relative displacement number that positioner is with respect to object to be detected is gathered with the 3rd frequency acquisition in checking process
According to；The one or more relative displacement data being gathered before and after the scanning imagery time of column scan image based on positioner, really
Fixed first relative position relation, the one or more positions relatively being gathered before and after the shooting time of optical imagery based on positioner
Move data, determine the second relative position relation.
Preferably, when the 3rd frequency acquisition is less than the first imaging frequency, row interpolation meter is entered to multiple relative displacement data
Calculate, to obtain the first relative position relation corresponding to each column scan image, and/or when the 3rd frequency acquisition is equal to the
During one imaging frequency, determine the first relative position relation corresponding to multiple column scan images with multiple relative displacement data one by one
Corresponding, and/or when the 3rd frequency acquisition is more than the first imaging frequency, multiple relative displacement data are extracted, with
Obtain each first relative position relation corresponding to column scan image.
Preferably it is seen that photoimaging equipment is line-scan digital camera, for by column optical imagery being carried out to object to be detected, when the
When three frequency acquisitions are less than the second imaging frequency, interpolation calculation is carried out to relative displacement data, to obtain each optical imagery institute
Corresponding second relative position relation, and/or when the 3rd frequency acquisition is equal to the second imaging frequency, determine multiple optics
The first relative position relation corresponding to image is corresponded with multiple relative displacement data, when the 3rd frequency acquisition is more than second
During imaging frequency, relative displacement data is extracted, to obtain the second relative position relation corresponding to each optical imagery.
Preferably it is seen that photoimaging equipment be area array cameras or camera head, the method this can include：In advance to quilt
Object of reference at visual light imaging device same distance for the detection object is imaged, to obtain reference picture picture, based on object of reference
Actual size and reference picture picture in object of reference display size, determine imaging scale, can when determining and forming optical imagery
See the position with respect to object to be detected for the optical center line of photoimaging equipment shooting, and determined based on this position and imaging scale
The second relative position relation corresponding to each column image in optical imagery.
To sum up, the radiation checking system of the present invention and method are mainly in the process that object to be detected is carried out with radiant image
In, visual light imaging is carried out to object to be detected, then by the radiation image obtaining by radiation scanning with by visible simultaneously
The optical imagery that photoimaging obtains is mapped.So, when showing radiation image, corresponding light can synchronously be shown
Learn image, facilitate security staff quickly to determine the object to be detected corresponding to radiation image.
Brief description
By combining accompanying drawing, disclosure illustrative embodiments are described in more detail, the disclosure above-mentioned and its
Its purpose, feature and advantage will be apparent from, wherein, in disclosure illustrative embodiments, identical reference number
Typically represent same parts.
Fig. 1 shows the schematic block diagram of the structure of radiation checking system according to an embodiment of the invention.
Fig. 2 shows the structural representation using radiation imaging apparatus during transmission-type radiant image.
Fig. 3 shows the structural representation of radiation imaging apparatus when being imaged using back-scatter radiation.
Fig. 4 A shows the primary radiation image under direct range finding.
Fig. 4 B shows the original optical image under direct range finding.
Fig. 4 C shows the image after the radiation image shown in Fig. 4 A is rebuild.
Fig. 4 D shows the optical imagery after the optical imagery shown in Fig. 4 B is rebuild.
Fig. 5 A shows the primary radiation image under indirect distance measuring.
Fig. 5 B shows the image after the radiation image shown in Fig. 5 A is rebuild.
Fig. 6 shows the schematic diagram of a kind of simultaneous display radiation image and optical imagery.
Fig. 7 shows the schematic diagram of the position showing radiation imaging apparatus in map.
Specific embodiment
It is more fully described the preferred implementation of the disclosure below with reference to accompanying drawings.Although showing the disclosure in accompanying drawing
Preferred implementation, however, it is to be appreciated that may be realized in various forms the disclosure and the embodiment party that should not illustrated here
Formula is limited.On the contrary, these embodiments are provided so that the disclosure is more thorough and complete, and can be by the disclosure
Scope intactly conveys to those skilled in the art.
As it was noted above, using radiography the objects to be detected such as vehicle are scanned obtained from radiation image
The profile information of object to be detected can only be reflected it is impossible to obtain the minutias such as the color of object to be detected, texture, this makes phase
Pass personnel are difficult to scanogram and actual object to be detected are mapped.For example, using vehicular scanning device to along the street
When parked car carries out radiation scanning imaging, the radiation image of a lot of vehicles can be obtained.After the completion of scanning, to radiation image
When being checked, according only to radiation image it is impossible to it is mapped with actual vehicle, this undoubtedly can affect relevant staff
Subsequently a series of enforcing laws such as check, review afterwards by hand.
In view of the heightened awareness to the problems referred to above, the present invention proposes and a kind of can quickly determine corresponding to radiation image
The radiation monitoring scheme of object to be detected.
The radiation monitoring scheme of the present invention is mainly during carrying out radiant image to object to be detected, simultaneously to quilt
Detection object carries out visual light imaging, is then based on certain matched rule and (can be carried out based on time or relative position relation
Coupling, it would however also be possible to employ other matching ways, specific matching process will be described below in detail), will be corresponding to same tested
Survey the radiation image obtaining by radiation scanning of object and the optical imagery being obtained by visual light imaging is mapped.This
Sample, when showing radiation image, can synchronously show corresponding optical imagery, facilitate security staff quickly to determine radiation
Object to be detected corresponding to image.
The radiation monitoring scheme of the present invention can be implemented as a kind of radiation checking system it is also possible to be embodied as a kind of radiation inspection
Checking method.
Fig. 1 shows the schematic block diagram of the structure of radiation checking system according to an embodiment of the invention.
Understood based on radiant image principle, radiation checking system is used for thering is relative motion between object to be detected
In the case of object to be detected carried out with radiation monitoring (radiation monitoring here is primarily referred to as radiant image).Here generally there are two kinds
Form the mode of relative motion：One kind is that checking matter maintains static, and radiation checking system moves on the ground, real through checking matter
Existing scanning imagery, such as vehicular transmission inspection system and vehicular back scattering inspection system move scanning, can will be this kind of
Scan mode is referred to as portable scanning；Another kind is that radiation checking system maintains static, and checking matter is real through radiation checking system
Existing scanning imagery, for example fast formula vehicle inspection system, or vehicular inspection system maintain static vehicle and pass through to be scanned into
This kind of scan mode can be referred to as fixed scanning by picture.
Referring to Fig. 1, radiation checking system 100 includes radiation imaging apparatus 110, visual light imaging device 120 and image
Matched-field processorses 130.
Radiation imaging apparatus 110 are used for scanning by column object to be detected, to obtain multiple column scan figures of object to be detected
Picture, wherein, the direction of row is substantially perpendicular to the direction of the relative motion between radiation imaging apparatus 110 and object to be detected.
Specifically, radiation imaging apparatus 110 can adopt transmission-type radiant image, it would however also be possible to employ back-scatter radiation becomes
Picture.
As shown in Fig. 2 when using transmission-type radiant image, radiation imaging apparatus can include radiation source 1110, collimation
Device 1120 and detector 1130.
Radiation source 1110 is used for producing X-ray.Collimator 1120, collimates so that ray is through sense channel for ray
Just ensure afterwards detector array is completely covered.Detector 1130 can detect that ray reaches detector after sense channel
During position, the intensity of ray is it is possible to be converted to transmission image by transmitted intensity.
As shown in figure 3, when being imaged using back-scatter radiation, radiation imaging apparatus can include radiation source 1110, ray
Modulating device 1121 and detector 1130.Wherein, radiation source 1110 is used for producing X-ray, and ray modulation device 1121 is used for
The X-ray that radiation source 1110 is produced is modulated, to form the flying spot of spot scan.With using transmission-type radiant image not
With, detector 1130 is located at the both sides of ray modulation device 1121, for receiving the intensity of the ray from detected material volume scattering,
And transmitted intensity is converted to dispersion image.
Visual light imaging device 120 has fixing relative position with radiation imaging apparatus 110 during radiation monitoring
Relation, for, during radiation monitoring, carrying out optical imagery to object to be detected, to obtain of object to be detected or many
Individual optical imagery.Wherein, optical imagery here can be photo or comprise regarding of multiple optical imagerys one by one
Frequently.
For example it is seen that photoimaging equipment 120 can be camera or camera head, can be specifically that area array cameras can also be
Line-scan digital camera, is acquired to object to be detected by corresponding face battle array or linear array acquisition mode, to obtain the field of object to be detected
Scape image or video.For example, when using line-scan digital camera, column by column optical imagery can be carried out to object to be detected, so may be used
To obtain multiple row optical imagery；When optical imagery being carried out to object to be detected using area array cameras, the imaging model of area array cameras
Enclose larger, in object to be detected negligible amounts or object to be detected small volume, be likely to be obtained a width or a few width optical imagery；
Furthermore it is also possible to obtain the video information of object to be detected using camera head, now can obtain comprising multiple optical imagerys
Video.
Images match processor 130 can be based on predetermined matched rule by the column scan corresponding to same object to be detected
Image and optical imagery are mated, and obtain corresponding relation therebetween, for the column scan image mating and optical imagery,
Can facilitate security staff that object to be detected is quickly positioned with simultaneous display.
Here, images match processor 130 can take multiple matched rules to be mated, and as an example, is set forth below
Two kinds of matching ways being mated based on the time and mated based on relative position relation.It should be understood that this area skill
Art personnel may also take on multiple other matching ways by corresponding to the column scan image of same object to be detected and optical picture
As being mapped, repeat no more here.
Mated based on the time
Images match processor 130 can be according to during the shooting of the scanning imagery time of column scan image and optical imagery
Between, set up the corresponding relation between column scan image and optical imagery.
As described above, it is seen that photoimaging during radiation imaging apparatus 110 carry out radiant image to object to be detected
Device 120 can carry out visual light imaging to object to be detected simultaneously.The imaging frequency of wherein visual light imaging device 120 is permissible
Identical from the imaging frequency of the column scan image of radiation imaging apparatus 110 it is also possible to different.According to being scanned into of column scan image
As the shooting time of time and optical imagery, the corresponding relation between column scan image and optical imagery can be set up.
For example it is seen that photoimaging equipment 120 can carry out optics to object to be detected in the way of being imaged using linear array scanning
Imaging, and the imaging frequency of the column scan image of the imaging frequency of visual light imaging device 120 and radiation imaging apparatus 110 can
With identical it is preferable that visual light imaging device 120 can be arranged on the position of the transmitting flying spot bundle of radiation imaging apparatus 110
Put place, and synchronous imaging.As such, it is possible to by the multiple column scan images being obtained based on radiation imaging apparatus 110 with based on can
See that multiple optical imagerys that photoimaging equipment 120 obtains directly are mapped sequentially in time.
Mated based on relative position relation
Images match processor 130 can also form during column scan image according to radiation imaging apparatus 110 and detected material
Relative position relation (for the ease of distinguishing, being properly termed as the first relative position relation here) between body and visual light imaging dress
Put the relative position relation (the referred to herein as second relative position relation) and object to be detected between when forming optical imagery, set up
Corresponding relation between column scan image and optical imagery.
Thus, the radiation detection system of the present invention can also include positioner, can obtain by positioner
One relative position relation and the second relative position relation, thus realize the coupling of column scan image and optical imagery.
As shown in figure 1, radiation checking system 100 can include positioner 140.Positioner 140 can radiate into
As device 110 is carried out in radiation imaging procedure to object to be detected, with predetermined frequency acquisition (can be a fixed frequency,
Can also be the frequency of a change) gather the relative displacement data that radiation imaging apparatus 110 are with respect to object to be detected.Its
In, in positioner 140 collection relative displacement data, the relative position between positioner 140 and radiation imaging apparatus 110
Relation is fixed.
As described above, object to be detected is carried out in radiation imaging procedure it is seen that photoimaging in radiation imaging apparatus 110
Relative position relation between device 120 and radiation imaging apparatus 110 is also fixed.Therefore, the spoke being obtained according to positioner 140
Penetrate imaging device 110 with respect to the relative displacement data of object to be detected it is possible to obtain visual light imaging device 120 with respect to
The relative displacement data of object to be detected.Here, it is arranged on the scanning of radiation imaging apparatus 110 in visual light imaging device 120
During the Exit positions of beam, positioner 140 obtain radiation imaging apparatus 110 with respect to object to be detected relative displacement
Data can directly as visual light imaging device 120 with respect to object to be detected relative displacement data.In visual light imaging
When device 120 is positioned away from the Exit positions certain distance of the flying spot bundle of radiation imaging apparatus 110, can according to this away from
Carry out accordingly inclined with respect to the relative displacement data of object to be detected from the radiation imaging apparatus 110 that positioner 140 is obtained
Move, to obtain the relative displacement data that visual light imaging device 120 is with respect to object to be detected.Preferably, radiant image dress
Put 110, visual light imaging device 120 and positioner 140 works asynchronously, synchronization here refers to that the moment started working is same
Step, the frequency in work can differ.
Wherein, positioner 140 can directly gather positioner 140 with respect to detected material with predetermined sample frequency
The relative displacement data of body.Directly the method for collection is more convenient for portable scan pattern, for example, radiation imaging apparatus
110 can be integrated on moveable platform, and radiation imaging apparatus 110 can move integrally with moveable platform.Positioner
140 can adopt encoder, and encoder can be arranged at the travel mechanism of moveable platform.
With moveable platform as vehicle, as a example encoder is arranged at the axletree of vehicle, encoder can be with ground
Certain position be zero, for example can be former for coordinate with the Exit positions of the flying spot book of radiation imaging apparatus 110
Point.So, when radiation imaging apparatus 110 movement is scanned, encoder starts counting up, and it is corresponding to be the angle that wheel rotates
Degree, i.e. the distance of correspondence proving equipment relative coordinates initial point movement.Thus, vehicle often move preset distance (can be with the car of vehicle
Wheel rotates a circle), encoder is just once counted.
As shown in Figure 4 A, top is that radiation imaging apparatus 110 scan the radiation image schematic diagram that a lorry collects, under
Side is the encoded radio numerical value that encoder collects.Because speed when radiation imaging apparatus 110 are mobile may be uneven, as shown in the figure
During scanning truck cab, translational speed leads to over-sampling partially slowly, and corresponding encoded radio occurs the situation of repetition, primary radiation
Image also can widen deformation；And scan railway carriage anterior when translational speed is fast leads to lack sampling, corresponding encoded radio occurs jump
The situation of jump, primary radiation image also can narrow deformation, can carry out image by the method for reconstructing being introduced below in this case
Rebuild.
As shown in Figure 4 B, top is that visual light imaging device 120 carries out the optical imagery that optical imagery obtains and shows to lorry
It is intended to, lower section is equally the encoded radio number that encoder collects.Wherein, it is seen that photoimaging equipment 120 in the present embodiment
The Exit positions of the flying spot bundle of installation site and radiation imaging apparatus 110 there is certain deviation distance, therefore, Fig. 4 A
Have necessarily with the encoded radio corresponding to the radiation image of the same area corresponding to object to be detected in Fig. 4 B and optical imagery
Deviation.
In addition, positioner 140 can also be with predetermined sample frequency collection positioner 140 with respect to object to be detected
Relative velocity, to obtain one or more relative velocity data, then (can be obtained according to sample frequency according to the sampling interval
Go out) and relative velocity data it may be determined that positioner 140 with respect to object to be detected relative displacement data.
That is, speed can be multiplied by the sampling interval duration of positional information, obtain moving in sampling interval duration
Distance, be relative displacement data by cumulative for sampling interval distance.For example, when the cycle of testing the speed being Δ t, when pre-test obtains
Speed be vi, i=0,1,2... is the sampling sequence number that tests the speed, then calculating relative displacement data is pi=pi-1+Δt*vi.
As shown in Figure 5A, above figure seems that radiation imaging apparatus 110 scan the radiation image signal that a lorry collects
Figure, lower section is the checking matter translational speed value and the relative displacement data obtaining that converts collecting by certain frequency.
Images match processor 130 can be adopted around time in the scanning imagery of column scan image based on positioner 140
Collection one or more relative displacement data, determine the first relative position relation, based on positioner 140 optical imagery bat
The one or more relative displacement data gathering before and after taking the photograph the time, determine the second relative position relation.Thus, determining first
After relative position relation and the second relative position relation it is possible to by column scan image same or like for relative position relation and
Optical imagery is mapped.
The determination of the first relative position relation
For the ease of description, here by the imaging frequency of the column scan image of radiation imaging apparatus 110 referred to as first imaging
Frequency.
Frequency the referred to as the 3rd collection by collection (directly collection or indirect collection) the relative displacement data of positioner 140
Frequency.
When the 3rd frequency acquisition is less than the first imaging frequency, images match processor 130 can be according to the first one-tenth picture frequency
Rate carries out interpolation calculation to multiple relative displacement data, is closed with the first relative position obtaining corresponding to each column scan image
System.
When the 3rd frequency acquisition is equal to the first imaging frequency, the first relative position corresponding to multiple column scan images is closed
System is corresponded with multiple relative displacement data.
When the 3rd frequency acquisition is more than the first imaging frequency, images match processor 130 can be according to the first one-tenth picture frequency
Rate extracts to multiple relative displacement data, to obtain the first relative position relation corresponding to each column scan image.
The determination of the second relative position relation
When visual light imaging device 120 carries out optical imagery to object to be detected by column using line-scan digital camera, due to can
See photoimaging equipment 120 and radiation imaging apparatus 110 by the way of linear array scanning imaging.Therefore, the second relative position relation
Determination can be identical with the determination mode of the first relativeness.
For the ease of description, here it will be seen that the imaging frequency of the optical imagery of photoimaging equipment 120 referred to as second is imaged
Frequency.
Frequency the referred to as the 3rd collection by collection (directly collection or indirect collection) the relative displacement data of positioner 140
Frequency.
When the 3rd frequency acquisition is less than the second imaging frequency, images match processor 130 can be according to the second one-tenth picture frequency
Rate carries out interpolation calculation to multiple relative displacement data, is closed with the second relative position obtaining corresponding to each column scan image
System.
When the 3rd frequency acquisition is equal to the second imaging frequency, the second relative position relation corresponding to multiple optical imagerys
Correspond with multiple relative displacement data.
When the 3rd frequency acquisition is more than the second imaging frequency, images match processor 130 can be according to the second one-tenth picture frequency
Rate extracts to multiple relative displacement data, to obtain the second relative position relation corresponding to each optical imagery.
When visual light imaging device 120 adopts area array cameras or camera head, the figure being obtained due to each collection period
Bigger as covering object to be detected scope, therefore can reduce optical image acquisition frequency, more each two field picture is carried out splicing and melt
Close, form the panoramic picture of final checking matter and scene.
When the imaging parameters of camera, when such as the parameter such as focal length is fixing, the scene ratio in the picture with camera fixed range
It is fixing.Therefore can in advance the object of reference at visual light imaging device same distance with object to be detected be become
Picture, to obtain reference picture picture, is then based on the display size of the object of reference in the actual size of object of reference and reference picture picture, really
Determine imaging scale.Here imaging scale refers to the ratio of dimension of object in reference picture picture and actual size.
After determining imaging scale, it is only necessary to determine when forming optical imagery, the photographic head centrage of camera is with respect to quilt
The position of detection object is it is possible to determine the position with respect to object to be detected for the center of optical imagery, according to imaging scale just
The position corresponding to optical imagery each column can be extrapolated.Here object of reference can be preferred that scale.
First relative position relation and the coupling of the second relative position relation
It is possible to be closed according to the first relative position after determining the first relative position relation and the second relative position relation
System and the second relative position relation, to the column scan image making radiation imaging apparatus 110 obtain with using visual light imaging device
The optical imagery of 120 acquisitions is mated.
Wherein, be arranged in visual light imaging device 120 radiation imaging apparatus 110 the Exit positions of flying spot when
(for example, it is seen that photoimaging equipment 120 can be arranged on going out of collimator 1120 or ray modulation device 1121 shown in Fig. 2, Fig. 3
Penetrate position), directly by column scan image corresponding to the first relative position relation and the second relative position relation and optical imagery
It is defined as matching.
At the Exit positions preset distance of the flying spot being positioned away from radiation imaging apparatus in visual light imaging device
When (for example, the visual light imaging device 120 shown in dotted portion in Fig. 2, Fig. 3) in addition it is also necessary to according to deviation position, to the first phase
Position relationship and/or the second relative position relation are adjusted, are mated based on the data after adjustment.
Image reconstruction
As shown in Figure 4 A, during radiation imaging apparatus 110 carry out radiant image to object to be detected, radiant image
The translational speed of device 110 may be uneven, partially can lead to over-sampling slowly in translational speed, an encoded radio can correspond to multiple row
Scanogram, now based on multiple column scan image mosaic become radiation image compared with the real image of object to be detected, meeting
Occur widening deformation.And when radiation imaging apparatus 110 translational speed is too fast it is possible to the corresponding row of several encoded radios occur
Scanogram, now based on multiple column scan image mosaic become radiation image compared with the real image of object to be detected, meeting
Occur narrowing deformation.
Correspondingly, as shown in Figure 4 B, obtain object to be detected in visual light imaging device 120 using the mode that linear array gathers
Optical imagery when it is also possible to there is the situation of above-mentioned deformation.
Therefore, images match processor 130 can integrate multiple column scan images based on the first relative position relation, with
To imaging scale close to actual reconstruction scanogram.Multiple optical pictures can also be integrated based on the second relative position relation simultaneously
Picture, to obtain imaging scale close to actual reconstruction optical imagery.
Specifically, images match processor 130 can enter to multiple column scan images according to the first relative position relation
Row geometrical reconstruction is to obtain the scanogram that Aspect Ratio is consistent with actual object, and obtains corresponding after the reconstruction of image each column
Position coordinate value.
For example, image reconstruction process can be carried out according to encoded radio, the image of over-sampling be extracted or average treatment is entered
Row is rebuild, and carries out interpolation processing to the image of lack sampling and rebuilds.After radiation image shown in Fig. 4 A is rebuild
As shown in Figure 4 C, in image, checking matter each several part will not deform image, and corresponding position encoded value will be arithmetic progression order
Arrangement.Image after rebuilding for the radiation image shown in Fig. 5 A is as shown in Figure 5 B.
When visual light imaging device is line-scan digital camera, above-mentioned radiation image same method for reconstructing may also be employed to optics
Image is rebuild, such as the image after rebuilding for the optical imagery shown in Fig. 4 B is as shown in Figure 4 D.
When visual light imaging device is area array cameras, can from picture group or video flowing selected part picture material mutual
Overlapping image carries out image mosaic process, obtains a width and backscatter images length identical visible ray panoramic picture, and
Position coordinate value to panoramic picture each column.Image mosaic can adopt the algorithm of existing feature-based matching, can choose
The characteristic points such as SIFT, FAST, SURF are mated.
After radiation image being rebuild and optical imagery is rebuild or spliced, can be sat according to the position after rebuilding
Scale value, radiation image and optical imagery are mated, and determine corresponding image coordinate relation.Phase when visual light imaging device
When machine is arranged on radiation imaging apparatus ray beam position, position coordinate value therebetween does not have deviation, directly presses the position of the two
Put coordinate figure image is corresponding；When the camera of visual light imaging device is not installed on radiation imaging apparatus ray beam position
When, there is deviation in position coordinate value therebetween, when installation site is fixing, the deviation between position coordinate value is fixing
, acquisition deviation can be contrasted in advance, during coupling, carry out the correspondence between image according to the deviation of known fixed.Complete
After joining, will radiation image and optical imagery associate.
Association display
As shown in figure 1, as an alternative embodiment of the present invention, radiation checking system 100 can also include display
150.For the associated radiation image determining and optical imagery, display association can will be synchronized by display 150
Radiation image and optical imagery show.For example, display 150 can synchronize display according to the display mode of Fig. 6.So, may be used
Quickly determine the object to be detected corresponding to radiation image in order to security staff.
Furthermore it is also possible in the way of video simultaneous display radiation image and optical imagery.For example, when visual light imaging fills
Put collect be during video signal it is also possible to by rebuild after radiation image direct opsition dependent information be fabricated to backscatter images
Video, in video, the broadcasting speed of object refers to positional information in visible light video and is adjusted, to ensure that the two video broadcasts
Put synchronization.The broadcasting speed of back scattering video and visible light video by specific broadcasting speed, can also be adjusted respectively it is ensured that with
Step.
As another alternative embodiment of the invention, radiation checking system can also include GPS location equipment, for
During radiation monitoring, obtain the geographical location information of radiation imaging apparatus.So, images match processor 130 can be by GPS
Positional information be tied to image each column.When display can add mapping module, dynamic display image and video, according to GPS position
Confidence breath shows the dynamic position of radiation imaging apparatus in map, and for example, display 150 can be according to the display mode of Fig. 7
The dynamic position of display radiation imaging apparatus.
As another alternative embodiment of the invention, radiation checking system can also include identifying identification equipment, is used for
During radiation monitoring, the identification information of identification object to be detected.For example, mark identification equipment can be right in scanning process
Tested vehicle carries out car plate and takes pictures and identify, car plate photo and recognition result are tied in image corresponding vehicle.
So far, the radiation checking system of the present invention is described in detail in conjunction with Fig. 1-Fig. 7, in addition, present invention also offers one
Plant radiation testing method.The radiation testing method of the present invention goes in radiation checking system above, below only with regard to this
The basic step that the radiation testing method of invention can have illustrates, and may refer to for the detail section addressed in step
Related narration, repeats no more here above.
The radiation testing method of the present invention may comprise steps of：Scan by column detected material using radiation imaging apparatus
Body, to obtain multiple column scan images of object to be detected, the direction of row is substantially perpendicular to the direction of relative motion；In radiation
In checking process, using visual light imaging device, optical imagery is carried out to object to be detected, to obtain one of object to be detected
Or multiple optical imagery, wherein, during radiation monitoring, visual light imaging device and radiation imaging apparatus have fixing phase
To position relationship；Set up described column scan image and the described light corresponding to same object to be detected based on predetermined matched rule
Learn the corresponding relation between image.
Wherein, column scan image and the optical imagery corresponding to same object to be detected is set up based on predetermined matched rule
Between the step of corresponding relation can include：Scanning imagery time based at least one column scan image and optical imagery
Shooting time, or form the first phase between object to be detected during at least one column scan image based on radiation imaging apparatus
The second relative position relation and object to be detected between during optical imagery is formed to position relationship and visual light imaging device, builds
Corresponding relation between vertical column scan image and optical imagery.
As an alternative embodiment, the radiation testing method of the present invention can also comprise the following steps：Based on the first phase
Multiple column scan images are integrated to position relationship, to obtain imaging scale close to actual reconstruction scanogram；And/or base
Integrate multiple optical imagerys in the second relative position relation, to obtain imaging scale close to actual reconstruction optical imagery.
Wherein, radiation imaging apparatus are scanned by column to object to be detected with the first imaging frequency, and optical imagery is imaged
Device carries out optical imagery with the second imaging frequency to object to be detected, and the method can also include：During radiation monitoring
Using positioner, the relative displacement data that positioner is with respect to object to be detected is gathered with the 3rd frequency acquisition；Based on positioning
One or more relative displacement data that device gathered before and after the scanning imagery time of column scan image, determine the first relative position
Put relation, the one or more relative displacement data being gathered before and after the shooting time of optical imagery based on positioner, determine
Second relative position relation.
When the 3rd frequency acquisition is less than the first imaging frequency, interpolation calculation can be carried out to multiple relative displacement data,
To obtain the first relative position relation corresponding to each column scan image.
The first phase when the 3rd frequency acquisition is equal to the first imaging frequency it may be determined that corresponding to multiple column scan image
Position relationship is corresponded with multiple relative displacement data.
When the 3rd frequency acquisition is more than the first imaging frequency, multiple relative displacement data can be extracted, with
To the first relative position relation corresponding to each column scan image.
When visual light imaging device is line-scan digital camera, by column optical imagery can be carried out to object to be detected, now：
When the 3rd frequency acquisition is less than the second imaging frequency, interpolation calculation is carried out to relative displacement data, every to obtain
The second relative position relation corresponding to individual optical imagery；
When the 3rd frequency acquisition is equal to the second imaging frequency, determine the first relative position corresponding to multiple optical imagerys
Relation is corresponded with multiple relative displacement data；
When the 3rd frequency acquisition is more than the second imaging frequency, relative displacement data is extracted, to obtain each light
Learn the second relative position relation corresponding to image.
In addition, visual light imaging device be area array cameras or during camera head it is seen that photoimaging equipment in advance to quilt
Object of reference at visual light imaging device same distance for the detection object is imaged, to obtain reference picture picture, at images match
Manage the display size of the object of reference in the actual size based on object of reference for the device and reference picture picture, determine imaging scale, image
Join the position that the optical center line that when processor determines formation optical imagery, visual light imaging device shoots is with respect to object to be detected
Put, and determine the position of each column image in optical imagery based on this position and imaging scale.
Radiation checking system and the method according to the present invention is above described in detail by reference to accompanying drawing.
It is described above various embodiments of the present invention, described above is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.In the case of the scope and spirit without departing from illustrated each embodiment, for this skill
For the those of ordinary skill in art field, many modifications and changes will be apparent from.The selection of term used herein, purport
Best explaining principle, practical application or the improvement to the technology in market of each embodiment, or make the art
Other those of ordinary skill are understood that each embodiment disclosed herein.
Claims (19)
1. a kind of radiation checking system, radiates to it in the case of having relative motion between object to be detected
Check it is characterised in that including：
Radiation imaging apparatus, are used for scanning by column object to be detected, to obtain multiple column scan images of described object to be detected,
The direction of described row is substantially perpendicular to the direction of described relative motion；
Visual light imaging device, has fixing relative position relation with described radiation imaging apparatus during radiation monitoring,
For, during described radiation monitoring, optical imagery being carried out to described object to be detected, to obtain described object to be detected
One or more optical imagerys；
Images match processor, for setting up the described column scan corresponding to same object to be detected based on predetermined matched rule
Corresponding relation between image and described optical imagery.
2. radiation checking system according to claim 1 it is characterised in that
Scanning imagery time based at least one column scan image for the described image matched-field processorses and the bat of described optical imagery
Take the photograph the time, or formed during at least one column scan image and described object to be detected between based on described radiation imaging apparatus
First relative position relation and described visual light imaging device form during described optical imagery and described object to be detected between
Second relative position relation, sets up corresponding between the described column scan image of same object to be detected and described optical imagery
Corresponding relation.
3. radiation checking system according to claim 2 it is characterised in that
Described image matched-field processorses are based on described first relative position relation and integrate the plurality of column scan image, to be become
As ratio is close to actual reconstruction scanogram；And/or
Described image matched-field processorses are based on described second relative position relation and integrate the plurality of optical imagery, to be imaged
Ratio is close to actual reconstruction optical imagery.
4. radiation checking system according to claim 2 is it is characterised in that also include：
Positioner, for, during described radiation monitoring, gathering described radiation imaging apparatus relatively with the 3rd frequency acquisition
In the relative displacement data of described object to be detected,
Wherein, described radiation imaging apparatus are scanned by column to described object to be detected with the first imaging frequency, described visible
Photoimaging equipment carries out optical imagery with the second imaging frequency to described object to be detected,
Described image matched-field processorses are gathered before and after the scanning imagery time of described column scan image based on described positioner
One or more relative displacement data, determine described first relative position relation, based on described positioner in described optics
Before and after the shooting time of image, one or more relative displacement data of collection, determine described second relative position relation.
5. radiation checking system according to claim 4 it is characterised in that
When described 3rd frequency acquisition is less than described first imaging frequency, described image matched-field processorses are to the plurality of relative
Displacement data carries out interpolation calculation, to obtain the first relative position relation corresponding to each described column scan image, and/or
Person
When described 3rd frequency acquisition is equal to described first imaging frequency, described image matched-field processorses determine the plurality of row
The first relative position relation corresponding to scanogram is corresponded with the plurality of relative displacement data, and/or
When described 3rd frequency acquisition is more than described first imaging frequency, described image matched-field processorses are to the plurality of relative
Displacement data is extracted, to obtain the first relative position relation corresponding to each described column scan image.
6. radiation checking system according to claim 4 it is characterised in that
Described radiation imaging apparatus are arranged on moveable platform, and described radiation imaging apparatus can be with described moveable platform
Move integrally,
Described positioner includes encoder, and described encoder is arranged at the travel mechanism of described moveable platform.
7. radiation checking system according to claim 6 it is characterised in that
Start to scan by column described object to be detected in response to described radiation imaging apparatus, described encoder starts counting up, wherein,
Described moveable platform often moves preset distance, and described encoder is once counted.
8. radiation checking system according to claim 4 it is characterised in that
It is relative with respect to described object to be detected that described positioner gathers described positioner with described 3rd frequency acquisition
Speed, to obtain one or more relative velocity data, according to described 3rd frequency acquisition and described relative velocity data, really
Fixed one or more described relative displacement data.
9. radiation checking system according to claim 4 it is characterised in that
Described visual light imaging device is line-scan digital camera, for by column optical imagery being carried out to described object to be detected,
When described 3rd frequency acquisition is less than described second imaging frequency, described image matched-field processorses are to described relative displacement
Data carries out interpolation calculation, to obtain the second relative position relation corresponding to each described optical imagery, and/or
When described 3rd frequency acquisition is equal to described second imaging frequency, described image matched-field processorses determine the plurality of light
Learn the first relative position relation corresponding to image to correspond with the plurality of relative displacement data,
When described 3rd frequency acquisition is more than described second imaging frequency, described image matched-field processorses are to described relative displacement
Data is extracted, to obtain the second relative position relation corresponding to each described optical imagery.
10. radiation checking system according to claim 4 it is characterised in that
Described visual light imaging device is area array cameras or camera head,
Described visual light imaging device in advance to described object to be detected at described visual light imaging device same distance
Object of reference is imaged, to obtain reference picture picture,
Object of reference in the actual size based on described object of reference for the described image matched-field processorses and described reference picture picture aobvious
Show size, determine imaging scale,
The optical center that when described image matched-field processorses determine formation described optical imagery, described visual light imaging device shoots
Line is with respect to the position of described object to be detected, and determines each column in described optical imagery based on this position and described imaging scale
The second relative position relation corresponding to image.
11. radiation checking systems according to claim 4 it is characterised in that
Described visual light imaging device is arranged on the Exit positions of the flying spot of described radiation imaging apparatus, or
Described visual light imaging device is positioned away from the Exit positions preset distance of the flying spot of described radiation imaging apparatus
Place.
12. radiation checking systems according to claim 1 are it is characterised in that also include：
GPS location equipment, for, during described radiation monitoring, obtaining the geographical location information of described radiation imaging apparatus；
And/or
Mark identification equipment, for, during described radiation monitoring, identifying the identification information of described object to be detected.
A kind of 13. radiation testing methods, carry out spoke in the case of having relative motion between object to be detected to it
Penetrate inspection it is characterised in that including：
Scan by column object to be detected using radiation imaging apparatus, to obtain multiple column scan images of described object to be detected,
The direction of described row is substantially perpendicular to the direction of described relative motion；
During radiation monitoring, using visual light imaging device, optical imagery is carried out to described object to be detected, to obtain
State one or more optical imagerys of object to be detected, wherein, described visual light imaging device and institute during radiation monitoring
State radiation imaging apparatus and there is fixing relative position relation；
Set up described column scan image and the described optical imagery corresponding to same object to be detected based on predetermined matched rule
Between corresponding relation.
14. radiation testing methods according to claim 13 are it is characterised in that described set up based on predetermined matched rule
The step of the corresponding relation between the described column scan image corresponding to same object to be detected and described optical imagery includes：
Scanning imagery time based at least one column scan image and the shooting time of described optical imagery, or based on described
Radiation imaging apparatus formed during at least one column scan image the first relative position relation and described object to be detected between and
Described visual light imaging device forms the second relative position relation during described optical imagery and described object to be detected between, builds
Vertical corresponding relation between described column scan image and described optical imagery.
15. radiation testing methods according to claim 14 are it is characterised in that also include：
The plurality of column scan image is integrated based on described first relative position relation, to obtain imaging scale close to actual weight
Build scanogram；And/or
The plurality of optical imagery is integrated based on described second relative position relation, to obtain imaging scale close to actual reconstruction
Optical imagery.
16. radiation testing methods according to claim 14, wherein, described radiation imaging apparatus are with the first imaging frequency pair
Described object to be detected is scanned by column, and described optical imagery imaging device is with the second imaging frequency to described object to be detected
Carry out optical imagery, the method also includes：
Using positioner, described positioner is gathered with the 3rd frequency acquisition during radiation monitoring tested with respect to described
Survey the relative displacement data of object；
The one or more positions relatively being gathered before and after the scanning imagery time of described column scan image based on described positioner
Move data, determine described first relative position relation, based on described positioner before and after the shooting time of described optical imagery
One or more relative displacement data of collection, determine described second relative position relation.
17. radiation testing methods according to claim 16 it is characterised in that
When described 3rd frequency acquisition is less than described first imaging frequency, row interpolation meter is entered to the plurality of relative displacement data
Calculate, to obtain the first relative position relation corresponding to each described column scan image, and/or
When described 3rd frequency acquisition is equal to described first imaging frequency, determine the corresponding to the plurality of column scan image
One relative position relation is corresponded with the plurality of relative displacement data, and/or
When described 3rd frequency acquisition is more than described first imaging frequency, the plurality of relative displacement data is extracted,
To obtain the first relative position relation corresponding to each described column scan image.
18. radiation testing methods according to claim 16 it is characterised in that
Described visual light imaging device is line-scan digital camera, for by column optical imagery being carried out to described object to be detected,
When described 3rd frequency acquisition is less than described second imaging frequency, interpolation calculation is carried out to described relative displacement data,
To obtain the second relative position relation corresponding to each described optical imagery, and/or
When described 3rd frequency acquisition is equal to described second imaging frequency, determine first corresponding to the plurality of optical imagery
Relative position relation is corresponded with the plurality of relative displacement data,
When described 3rd frequency acquisition is more than described second imaging frequency, described relative displacement data is extracted, with
The second relative position relation corresponding to optical imagery each described.
19. radiation testing methods according to claim 16 are it is characterised in that described visual light imaging device is face battle array phase
Machine or camera head, the method also includes：
In advance the object of reference at described visual light imaging device same distance with described object to be detected is imaged, with
To reference picture picture；
The display size of the object of reference in the actual size based on described object of reference and described reference picture picture, determines imaging ratio
Example；
Determine that the optical center line that when forming described optical imagery, described visual light imaging device shoots is detected with respect to described
The position of object, and the second phase corresponding to each column image in described optical imagery is determined based on this position and described imaging scale
To position relationship.
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| PCT/CN2017/106345 WO2018072669A1 (en) | 2016-10-17 | 2017-10-16 | Radiation inspection system and method |
| SA519401590A SA519401590B1 (en) | 2016-10-17 | 2019-04-16 | Radiation Inspection System and Method |
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| CN116311085A (en) * | 2023-05-19 | 2023-06-23 | 杭州睿影科技有限公司 | Image processing method, system, device and electronic equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| SA519401590B1 (en) | 2022-06-01 |
| WO2018072669A1 (en) | 2018-04-26 |
| CN106383132B (en) | 2019-05-14 |
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