CN104181178A - Channel type two-viewing-angle X-ray liquid substance safety check system - Google Patents
Channel type two-viewing-angle X-ray liquid substance safety check system Download PDFInfo
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- 230000000007 visual effect Effects 0.000 claims description 55
- 239000000463 material Substances 0.000 claims description 31
- 238000007689 inspection Methods 0.000 claims description 27
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- 239000002360 explosive Substances 0.000 claims description 18
- 230000011218 segmentation Effects 0.000 claims description 16
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- 238000007405 data analysis Methods 0.000 claims description 9
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- 230000005540 biological transmission Effects 0.000 claims description 5
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- 238000002360 preparation method Methods 0.000 claims description 4
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- 238000003672 processing method Methods 0.000 description 1
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- 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
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Abstract
The invention discloses a channel type two-viewing-angle X-ray liquid substance safety check system which comprises a software system architecture and a hardware architecture, wherein the hardware architecture is a channel type two-viewing-angle X-ray liquid substance safety check device. According to the invention, channel type two-viewing-angle X-ray machine equipment and two computers are utilized, the software system of three-layer structures, namely a lower data processing layer, an intermediate logical analysis layer and an upper interface display layer, calculates substance characteristics of the liquid substance according to a two-viewing-angle image, wherein in the software system architecture, the data processing layer consists of seven functional modules, the logical analysis layer consists of four modules, and the interface display layer is composed of one module. The system has the advantages that liquid is supported and allowed to be arranged in a tray in a cross mode with non-liquid, distance between the liquid is not needed to be kept, a conveyor of equipment can reversely operate and perform liquid detection, and the condition that a conveyor belt of two-viewing-angle equipment reversely operates can be avoided.
Description
Technical field
The present invention relates to a kind of channel-type Double-visual angle X ray liquid article safety check system, belong to X ray digital imagery safety inspection technical field.
Background technology
Since September 11 attacks, liquid article inspection becomes the hot issue in safety inspection field gradually, and because liquid article relates to of a great variety, diversified in packagingly, the difficulty that makes quickly and accurately all kinds of liquid articles to carry out dangerous identification is increasing.Since 2010, each aviation safety authoritative institution is all to studying and formulate about the portable liquid article band standard of boarding a plane in the world.The schedule that portable liquid is boarded a plane is also repeatedly decided.European Union has put into effect the standard of EU.For liquid blasting material detectability difficulty or ease, Standard1 and two standards of Standard2 have been proposed, ability for equipment is divided into again tetra-grades of A-D, there is both at home and abroad many moneys equipment of different manufacturers to accept and passed through the test of this standard, possessed corresponding liquid checking ability.
In existing liquid article safety check technology, the lossless detection method based on X ray transmission imaging technology, with it possess check result accuracy high, to features such as container material quality susceptibility are low, come into one's own.This wherein, more representational is that publication number is two pieces of patents of invention of CN101140247A and CN101629916A, their common ground is all based on CT layer scanning technology, utilized dual-energy x-ray, obtain density and the material information that is examined liquid article simultaneously, liquid article density, material information and default database are compared, complete the inspection to tested liquid article.In addition, multi-view X ray Security Inspection Equipments adopts a plurality of fixed viewpoint double energy X-rays to carry out transillumination to object, by dual energy, obtains object materials feature, rebuilds object cross section obtain object density feature by a plurality of visual angles projected image.Multi-view X ray Security Inspection Equipments has had the quick DR imaging of conventional dual-energy x-ray rays safety detection apparatus concurrently and has measured the feature that equivalent atom ordinal sum CT type X ray rays safety detection apparatus tomoscan is measured density, and two kinds of patterns of liquid inspection and baggage inspection have been taken into account, improve the efficiency checking, widened the field of application.This wherein, more representational is that publication number is CN102928448A and CN202903699U patent of invention, the common ground of these two patents is to have utilized dual-energy x-ray projection to obtain being examined material behavior and the density feature of liquid article, and final judgement is examined whether safety of liquid article.Wherein CN102928448A is mainly the method flow of having emphasized to realize above-mentioned purpose, elaborated and how by various images processing and analysis means, finally to have obtained fluid to be measured material and density two dimensional character, and CN202903699U is mainly the system architecture of emphasizing to realize the described method of CN102928448A, from the angle of software theory, set forth building and operating of whole system.In system described in CN202903699U patent, be with 4 groups of radiographic source detectors, 2 computing machines are acquisition workstation, and 1 computing machine is that density workstation is on the hardware platform of equipment, by 7 software module organic compositions.CN202903699U patent is a basis of this patent, the difference of this patent and CN202903699U patent is, the system of this patent is with 2 groups of radiographic source detectors, 1 computing machine is acquisition workstation, 1 computing machine is that density workstation is on the hardware platform of equipment, by 12 software modules, be distributed in data analysis layer, logic analysis layer, the organic composition of interface display layer.From hardware platform to software module and steering logic have essential difference.
Common double visual angle equipment is commonplace in present traditional type, and the market share is large.If liquid Detection Techniques can be affixed one's name in this its upper side, that for new detection mode to spread out with the function upgrading of existing equipment be doulbe-sides' victory, both for the expansion of liquid detection mode in safety check field, reduced cost, again for existing safety check form provides diversity and technical guarantee.Since be a common equipment in existing safety check market, when improving detection performance, can not limit the ease for use of Double-visual angle equipment, this publication number is that the method and system of mentioning in CN102928448A and CN202903699U patent of invention can not be tackled the situation of Double-visual angle equipment travelling belt inverted running.
Summary of the invention
The object of the present invention is to provide a kind of channel-type Double-visual angle X ray liquid article safety check system that can overcome above-mentioned technical matters.
The present invention includes software system architecture and hardware structure, described software system architecture comprises data analysis layer, logic analysis layer and interface display layer; Described hardware structure is channel-type Double-visual angle X ray liquid article safety inspection device.
The present invention utilizes a channel-type Double-visual angle X-ray machine equipment and two computing machines, take acquisition workstation and liquid detection operations station is hardware platform, by low layer data processing, the software system architecture of middle layer logic analysis and upper strata interface display three-decker is according to the material property of two visual angle image calculation liquid articles.Hardware platform wherein, first visual angle V1 be the end according to visual angle, its radiographic source is positioned under the bottom of described safety inspection device passage; Second visual angle V2 is that side is shone visual angle, and its radiographic source is positioned at the right side of described safety inspection device passage; Software system architecture wherein, data analysis layer is comprised of 7 functional modules, and logic analysis layer is comprised of 4 modules, and interface display layer is comprised of 1 module.
This three-decker of software system architecture of the present invention has two kinds of mode of operations, and a kind of is to gather-survey-demonstration mode of operation, and another kind is image work for the treatment of pattern.When in gather-detection-demonstration mode of operation, by data analysis layer triggering work, the tissue of 7 modules of this one deck calls and result is further analyzed and completed by logic analysis layer, logic analysis layer obtains after data analysis layer result, by 4 module computational analysis of this layer, further result being passed to interface display layer and showing; When in image work for the treatment of pattern, be interface display layer triggering work, transferring command is to logic analysis layer, and logic analysis layer obtains order and analyzes, then the order of calling data processing layer specific implementation, then effect image transmission is gone back to show at display layer.Described these software systems can adapt to the mode of operation of described this equipment inverted running simultaneously.
The data analysis layer of described software system architecture comprises with lower module:
1) image capture module: receive the radioscopic image signal that the data acquisition card at two visual angles of Security Inspection Equipments of the present invention transmits, picture signal is arranged and analyzed, be partitioned into independently the image of parcel or plastic pallet, export the image of complete independently parcel or plastic pallet;
2) Images Classification module: the input step 1) result of image capture module, is judged as following 2 types: a) common parcel; B) plastic pallet box, output judgement classification results;
3) inspected object segmentation module: the result that is input as image capture module and Images Classification module, the image that is common parcel for type, original image forms single parcel image sections automatically, carry out conventional explosive detection, the image that is plastic pallet for type, segmentation in plastic pallet from front to back, order continuous liquid article in front and back in plastic pallet is formed to a liquid image section, other continuous personal belongings of front and back order in plastic pallet are formed to an on-liquid image sections, an image can be divided into a plurality of image sections, be that liquid and personal belongings can alternately occur front and back, but liquid and personal belongings can not occur side by side, avoid liquid to survey to form to disturb, above-mentioned image sections becomes the image as unit of subsequent analysis, the image at two visual angles is after segmentation, each section be also corresponding in groups, the image sections that is two visual angles of every group has same position at the whole story in original image context, the object of operation is to provide data source and foundation to starting different detecting modules like this, to liquid image section by start liquid detecting module, to on-liquid image sections, will start parcel detecting module, be output as different image sections and indicate accordingly,
4) explosive detection module: be input as parcel image sections and on-liquid image sections in inspected object segmentation module, this module is utilized the method for object materials signature analysis, surveys in parcel or in plastic pallet foreign material whether have explosive.Be output as sky or explosive explosive area array and corresponding sign;
5) liquid regions is selected module: be input as liquid image section in inspected object segmentation module, in same liquid image section, each part liquid is likely from beginning to end, according to features such as changes in material properties, volume, local shapes, by separating by container from beginning to end, be output as the section of finding several local material stability of characteristics in each container;
6) container material quality estimation module: be input as liquid regions and select module result, by material value, the material of the container of 3 criterion judgement liquid of color value and edge intensity profile, is output as container material quality judged result;
7) image display effect module: be input as the order of result and the upper layer transfers of image capture module, this module the inside has encapsulated figure image intensifying, edge strengthens, image inversion, and image intensification adds secretly, organism inorganics is rejected, image is bright to be swept, and image amplifies, the image processing functions such as gradation of image demonstration, be output as the processing result image triggering according to interface display layer, this module is image work for the treatment of pattern;
The logic analysis layer of described software system architecture comprises with lower module:
1) data preparation module: the liquid regions that is input as two visual angle images is selected module result, the result that the main disposal data processing layer of this module imports into, the data structure format that output subsequent module needs, also bearing simultaneously and arranging the image processing command that interface display layer transmits, after arrangement, sending instructions to image effect display module;
2) section matching module: be input as data preparation module result, there is the result of a plurality of slicing treatment at each visual angle, the function of this module is according to the locus of section and material information, the section of same group of each visual angle to be mated, and is output as some groups of Double-visual angles section arrays that match;
3) container section is rebuild module: be input as section matching module result, the judged result obtaining according to data capsule material module, low atomic number container utilizes a kind of nonlinear least square method in conjunction with the algorithm of method of conjugate gradient, in iterative estimation cross section, whether each grid belongs to container area, finally obtain cross sectional shape, high atomic number container is by container section modelling, utilize a kind of nonlinear least square method in conjunction with the algorithm of method of conjugate gradient, in iterative estimation cross section, whether each grid belongs to container, liquid, or air, finally obtain cross sectional shape, be output as the various reference value attributes of this container section,
4) characteristics analysis module, be input as section matching module and container interface and rebuild the result of module, the spectral information of bonding apparatus, X ray attenuation characteristic to the liquid in container is carried out a plurality of feature decomposition, feature comprises density, material, projection gray level etc., and carries out danger judgement by support vector machine.Be output as the current whether dangerous result of liquid that is examined.
The interface display layer of described software system architecture comprises with lower module:
1) image display: when this software system architecture in gathering-survey-while showing mode of operation, the radioscopic image at every group of two visual angles is synchronously shown at 2 displays respectively; And explosive detection and liquid can be surveyed to the abnormal article of finding, and with remarkable color box, at interface upper ledge, go out, when these software systems are when image is dealt with the work pattern, by showing, according to user intention, call the processing result image after image display effect module.
Channel-type Double-visual angle X ray liquid article safety check system of the present invention is supported automatic detection device inverted running, when liquid blasting material is carried out to automatic detection, Images Classification module in system, inspected object segmentation module, liquid regions select module according to the image at two visual angles, to analyze judgement separately, extract image type, image sections and detection slice position, the visual angle application of rear scanning first scans the analysis result that visual angle obtains, to avoid the same analytic process of repetition.
Described channel-type Double-visual angle X ray liquid article safety inspection device adopts brand-new Double-visual angle topological design, described Double-visual angle is comprised of 2 groups of x-ray sources and detector, every group of x-ray source and detector are called a probe unit, wherein, described probe unit be at the bottom of the middle part being installed in transfer passage according to unit of view V1, right side side according to unit of view V2; At the bottom of described middle part, according to unit of view V1, comprise that the end, middle part is according to x-ray source and the first detector; Described right side side comprises that according to unit of view V2 right side side is according to x-ray source and the second detector; And in the position near conduit wall, at the bottom of corresponding described middle part, according to x-ray source, right side side, according to x-ray source, be provided with respectively the collimating apparatus that X-ray beam is formed to thin fan beam.
Described channel-type Double-visual angle X ray liquid article safety inspection device also comprises system control and signal processing circuit unit, control with system and signal processing circuit unit carries out overall treatment computing machine, conveyor and the transfer passage of data transmission, wherein, described overall treatment computing machine connects two unit of view, the X ray data of obtaining two unit of view by signal processing circuit unit, conveyor is also controlled by overall treatment computing machine in addition.
Advantage of the present invention is to realize the groove of the liquid opsition dependent of examine being put into plastic pallet box, the liquid placement that can join end to end, can in nonoverlapping situation, in plastic pallet box, place small sized personal article simultaneously, the present invention supports to allow liquid and on-liquid to intersect to be put in plastic pallet, and do not need to keep at a distance between liquid, and the conveyor of equipment can antiport and is carried out liquid detection, the present invention can also tackle the situation of Double-visual angle equipment travelling belt inverted running, the present invention finally shows the image of checked property on device screen, learn whether dangerous and and alarm of checked property simultaneously.
Accompanying drawing explanation
Fig. 1 is the software system architecture three-layer weave structural drawing of channel-type Double-visual angle X ray liquid article safety check system of the present invention;
Fig. 2 is the overall data sequential process flow diagram of channel-type Double-visual angle X ray liquid article safety check system of the present invention;
Fig. 3 is the physical arrangement connection diagram of channel-type Double-visual angle X ray liquid article safety inspection device of the present invention;
Fig. 4 is the one-piece construction schematic diagram of channel-type Double-visual angle X ray liquid article safety inspection device of the present invention;
Fig. 5 is the schematic top plan view of plastic pallet box of the load bearing fluid of channel-type Double-visual angle X ray liquid article safety inspection device of the present invention.
Embodiment
Below in conjunction with drawings and Examples, describe the present invention.
Fig. 1 is the software system architecture three-layer weave structural drawing of channel-type Double-visual angle X ray liquid article safety check system of the present invention.As previously mentioned, 12 modules, fasten and are distributed in data analysis layer, logic analysis layer, interface display layer in organisational level pass altogether.When in gather-detection-demonstration mode of operation, the present invention, from the work of bottom trigger data processing layer, passes to logic analysis layer by result, then analysis result is passed to the demonstration of interface display layer; When in image work for the treatment of pattern, the present invention triggers work by upper strata, and interface display layer button is triggered, and order is passed to logic analysis layer, by logic analysis layer resolve command calling data processing layer associated picture Processing Algorithm, worked again, obtain result and return to interface display layer.
Fig. 2 is the overall data sequential process flow diagram of channel-type Double-visual angle X ray liquid article safety check system of the present invention, first illustrated that modules difference actual deployment is on acquisition workstation T1 and these 2 computing machines of liquid detection operations station T2, described 12 modules and be in the present invention and how to have worked and the transmission situation of data stream, simultaneously, while also having described device inverted running of the present invention, how the present invention supports.
Fig. 3 is the physical arrangement connection layout of channel-type Double-visual angle X ray liquid article safety inspection device of the present invention.Wherein 1 is channel-type Double-visual angle X ray liquid sniffer, 2,3 is the image pick-up card at corresponding two visual angles, 4 is acquisition workstation T1,5 is liquid detection operations station T2,6,7 is two displays, the image that shows respectively two visual angles, is all connected with acquisition workstation T1, is directly controlled the output of display 6, display 7 by acquisition workstation T1.
Fig. 4 is channel-type Double-visual angle X ray liquid article safety inspection device of the present invention, i.e. 1 in corresponding diagram 3.Wherein 15,22 is two radiographic sources, the former corresponding V2 visual angle, the corresponding V1 of the latter visual angle; 14,23 is ray collimators corresponding to two visual angles, and 13,16 is corresponding two groups of detectors; 17 is passage, and 21,24 is optical inductor, and 25 is conveyor; 20 is the plastic pallet of load bearing fluid 26, as shown in Figure 4; 28 is overall treatment computing machine, and described overall treatment computing machine has two.In plastic pallet 20, once can place a plurality of liquid articles to be detected, and can place other personal belongings simultaneously, as key, wallet, mobile phone etc.In addition, the 11,12,17,18, the 19th, the plumbous door curtain of described safety inspection device.
Fig. 5 is the schematic top plan view of plastic pallet box of the load bearing fluid of channel-type Double-visual angle X ray liquid article safety inspection device of the present invention, the 32nd, and the groove of container, the 31st, the liner of plastic pallet.
According to Fig. 1, Fig. 2, Fig. 4, describe the mode of operation flow process of collection-detection-demonstration of the present invention below in detail.
When the right access to plant of plastic pallet 20 from passage, the scanning of irradiating line source, horizontal rays source, V2 right side through the end, V1 middle part successively.In conjunction with Fig. 4, image pick-up card 27 acquisition of image data, image pick-up card is connected with acquisition workstation T1, and the data at two visual angles are successively sent to acquisition workstation T1.In conjunction with Fig. 2, under equipment forward ruuning situation, V1 first gathers visual angle again, and V2 is rear collection visual angle.In T1, hardware collects signal and triggers bottom data processing layer and call image capture module S1 and first obtain the independent parcel of visual angle V1 or the image of plastic pallet 20.Then, calling graph obtains and can supply the unit of analysis, i.e. image sections as sort module S2, inspected object segmentation module S3.Again each image sections is issued to suitable processing module: parcel image sections and on-liquid image sections are sent to explosive detection module S4, liquid image Duan Ze is sent to liquid regions and selects module S5 to obtain the position that liquid is surveyed section.At the same time, image capture module S1 gathers after obtaining the independent parcel of visual angle V2 or the image of plastic pallet 20.In conjunction with Fig. 2, in order to save time, the information of image kind (plastic pallet still wraps up), plastic pallet 20 internal image sections, detection slice position etc. is completely according to the analysis result of visual angle V1, and the major function of S2, S3, S5 module is skipped; For V2 visual angle on-liquid image sections, also can be sent to module S4 and carry out explosive detection.The liquid that V1 and V2 obtain is like this surveyed the information of section, by passing to the logic analysis layer at T2 liquid detection operations station, analyzes.By S7, to the analysis of S10, obtain the whether dangerous judgement of current detected material.To judge whether that dangerous result passes to upper strata image display S11 and demonstrate explosive area and report to the police again.
Important innovations of the present invention be can treat liquid sniffer inverted running sight, be in Fig. 4, conveyor 25 inverted runnings, plastic pallet 20 load bearing fluids 26 are from left side access to plant, first by horizontal rays source, V2 right side, then by the mode of operation of V1 middle part end irradiation line source.
When plastic pallet 20 enters from the left side of passage, the scanning of irradiating line source through horizontal rays source, V2 right side, the end, V1 middle part successively.After image pick-up card 27 acquisition of image data, the data at two visual angles are successively sent to acquisition workstation T1.In conjunction with Fig. 2, in device inverted running situation, V2 first gathers visual angle, and V1 is rear collection visual angle.In T1, hardware collects signal and triggers bottom data processing layer and call image capture module S1 and first obtain the independent parcel of visual angle V2 or the image of plastic pallet 20.Then, calling graph obtains and can supply the unit image sections of analysis as sort module S2, inspected object segmentation module S3.Again constituent parts image sections is issued to suitable processing module: parcel image sections and on-liquid image sections are sent to explosive detection module S4, liquid image Duan Ze is sent to liquid regions and selects module S5, obtains the position that liquid is surveyed section.At the same time, the image of the visual angle V1 that image capture module S1 gathers after obtaining.In order to save time, image kind (plastic pallet still wraps up), plastic pallet 20 internal image sections, survey slice position etc. information completely according to the analysis result of visual angle V2, the major function that is S2, S3, S5 module is skipped, certainly, for V1 visual angle on-liquid image sections, also can be sent to module S4 and carry out explosive detection.The liquid that V2 and V1 obtain is like this surveyed the information of section, by passing to the logic analysis layer at T2 liquid detection operations station, analyzes.By S7 to the whether dangerous judgement of the current detected material of calculating of S10.To judge whether that dangerous result passes to upper strata image display S11 and demonstrate explosive area and report to the police again.
In a word, Images Classification module S2, inspected object segmentation module S3, liquid regions select module S5 according to the image at V1 visual angle or V2 visual angle, to analyze judgement separately, extract image type, image sections and detection slice position.In conjunction with Fig. 2, the application of the visual angle of rear collection first gathers the analysis result that visual angle obtains, and can not need the same analytic process of repetition.Thereby improved the processing speed of integral body of the present invention.
Above-mentioned steps is a whole detection flow process, and the acquisition workstation T1 of front end and liquid detection operations station T2 continuous acquisition inspection box image under rational spacing is processed.
According to Fig. 1, Fig. 2, Fig. 4, describe the image work for the treatment of model process of software systems of the present invention below in detail.
As conveyor in Fig. 4 25 moves or stops, as long as overall treatment computing machine 28 display image screens, image work for the treatment of just can trigger.Safety inspector triggers display interface image treatment button, interface display layer can be passed to order the module S10 of logic analysis layer, through the concrete image processing method in the parsing calling data processing layer module S6 of module S10, then the effect image after processing is returned to module S10 pass to module S11 and show.
Described channel-type Double-visual angle X ray liquid article safety inspection device can inverted running when liquid blasting material is surveyed, be conveyor 25 inverted runnings in Fig. 4, plastic pallet 20 load bearing fluids 26 are from left side access to plant, first by horizontal rays source, V2 right side, then by the mode of operation of V1 middle part end irradiation line source.
Channel-type Double-visual angle X ray liquid article safety check system of the present invention is when carrying out automatic detection to liquid blasting material, Images Classification module S3 in system, inspected object segmentation module S4, liquid regions select module S6 according to the image at V1 visual angle or V2 visual angle, to analyze judgement separately, extract image type, image sections and detection slice position, the visual angle application of rear scanning first scans the analysis result that visual angle obtains, to avoid the same analytic process of repetition.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in scope disclosed by the invention; the variation that can expect easily or replacement, all should be encompassed in the protection domain of the claims in the present invention.
Claims (5)
1. a channel-type Double-visual angle X ray liquid article safety check system, is characterized in that, comprising: software system architecture and hardware structure, and described software system architecture comprises data analysis layer, logic analysis layer and interface display layer; Described hardware structure is channel-type Double-visual angle X ray liquid article safety inspection device.
2. a kind of channel-type Double-visual angle X ray liquid article safety check system according to claim 1, is characterized in that,
The data analysis layer of described software system architecture comprises with lower module:
1) image capture module: receive the radioscopic image signal that the data acquisition card at two visual angles of Security Inspection Equipments of the present invention transmits, picture signal is arranged and analyzed, be partitioned into independently parcel or pallet image, export complete independently parcel or pallet image;
2) Images Classification module: the input step 1) result of image capture module, is judged as following 2 types: a) common parcel; B) plastic pallet box, output judgement classification results;
3) inspected object segmentation module: the result that is input as image capture module and Images Classification module, the image that is common parcel for type, original image forms single parcel image sections automatically, carry out conventional explosive detection, the image that is plastic pallet for type, segmentation in pallet from front to back, order continuous liquid article in front and back in pallet is formed to a liquid image section, other continuous personal belongings of front and back order in pallet are formed to an on-liquid image sections, an image can be divided into a plurality of image sections, be that liquid and personal belongings can alternately occur front and back, but liquid and personal belongings can not occur side by side, avoid liquid to survey to form to disturb, above-mentioned image sections becomes the image as unit of subsequent analysis, the image at two visual angles is after segmentation, each section be also corresponding in groups, the image sections that is two visual angles of every group has same position at the whole story in original image context, the object of operation is to provide data source and foundation to starting different detecting modules like this, to liquid image section by start liquid detecting module, to on-liquid image sections, will start parcel detecting module, be output as different image sections and indicate accordingly,
4) explosive detection module: be input as parcel image sections and on-liquid image sections in inspected object segmentation module, this module is utilized the method for object materials signature analysis, surveys in parcel or in pallet foreign material whether have explosive.Be output as sky or explosive explosive area array and corresponding sign;
5) liquid regions is selected module: be input as liquid image section in inspected object segmentation module, in same liquid image section, each part liquid is likely from beginning to end, according to features such as changes in material properties, volume, local shapes, by separating by container from beginning to end, be output as the section of finding several local material stability of characteristics in each container;
6) container material quality estimation module: be input as liquid regions and select module result, by material value, the material of the container of 3 criterion judgement liquid of color value and edge intensity profile, is output as container material quality judged result;
7) image display effect module: be input as the order of result and the upper layer transfers of image capture module, this module the inside has encapsulated figure image intensifying, edge strengthens, image inversion, and image intensification adds secretly, organism inorganics is rejected, image is bright to be swept, and image amplifies, the image processing functions such as gradation of image demonstration, be output as the processing result image triggering according to interface display layer, this module is image work for the treatment of pattern;
The logic analysis layer of described software system architecture comprises with lower module:
1) data preparation module: the liquid regions that is input as two visual angle images is selected module result, the result that the main disposal data processing layer of this module imports into, the data structure format that output subsequent module needs, also bearing simultaneously and arranging the image processing command that interface display layer transmits, after arrangement, sending instructions to image effect display module;
2) section matching module: be input as data preparation module result, there is the result of a plurality of slicing treatment at each visual angle, the function of this module is according to the locus of section and material information, the section of same group of each visual angle to be mated, and is output as some groups of Double-visual angles section arrays that match;
3) container section is rebuild module: be input as section matching module result, the judged result obtaining according to data capsule material module, low atomic number container utilizes a kind of nonlinear least square method in conjunction with the algorithm of method of conjugate gradient, in iterative estimation cross section, whether each grid belongs to container area, finally obtain cross sectional shape, high atomic number container is by container section modelling, utilize a kind of nonlinear least square method in conjunction with the algorithm of method of conjugate gradient, in iterative estimation cross section, whether each grid belongs to container, liquid, or air, finally obtain cross sectional shape, be output as the various reference value attributes of this container section,
4) characteristics analysis module: be input as the result that section matching module and container interface are rebuild module, the spectral information of bonding apparatus, X ray attenuation characteristic to the liquid in container is carried out a plurality of feature decomposition, feature comprises density, material, projection gray level etc., and carries out danger judgement by support vector machine; Be output as the current whether dangerous result of liquid that is examined;
The interface display layer of described software system architecture comprises with lower module:
1) image display: when this software system architecture in gathering-survey-while showing mode of operation, the radioscopic image at every group of two visual angles is synchronously shown at 2 displays respectively; And explosive detection and liquid can be surveyed to the abnormal article of finding, and with remarkable color box, at interface upper ledge, go out, when these software systems are when image is dealt with the work pattern, by showing, according to user intention, call the processing result image after image display effect module.
3. a kind of channel-type Double-visual angle X ray liquid article safety check system according to claim 1 and 2, is characterized in that supporting automatic detection device inverted running.When liquid blasting material is carried out to automatic detection, Images Classification module in system, inspected object segmentation module, liquid regions select module according to the image at two visual angles, to analyze judgement separately, extract image type, image sections and detection slice position, the visual angle application of rear scanning first scans the analysis result that visual angle obtains, to avoid the same analytic process of repetition.
4. a kind of channel-type Double-visual angle X ray liquid article safety check system according to claim 1, it is characterized in that, described channel-type Double-visual angle X ray liquid article safety inspection device adopts brand-new Double-visual angle topological design, described Double-visual angle is comprised of 2 groups of x-ray sources and detector, every group of x-ray source and detector are called a probe unit, wherein, described probe unit be at the bottom of the middle part being installed in transfer passage according to unit of view V1, right side side according to unit of view V2; At the bottom of described middle part, according to unit of view V1, comprise that the end, middle part is according to x-ray source and the first detector; Described right side side comprises that according to unit of view V2 right side side is according to x-ray source and the second detector; And in the position near conduit wall, at the bottom of corresponding described middle part, according to x-ray source, right side side, according to x-ray source, be provided with respectively the collimating apparatus that X-ray beam is formed to thin fan beam.
5. according to a kind of channel-type Double-visual angle X ray liquid article safety check system described in claim 1 or 4, it is characterized in that, described channel-type Double-visual angle X ray liquid article safety inspection device also comprises system control and signal processing circuit unit, control with system and signal processing circuit unit carries out overall treatment computing machine, conveyor and the transfer passage of data transmission, wherein, overall treatment computing machine connects two each and every one unit of view, the X ray data of obtaining two visual angles by signal processing circuit unit, conveyor is also controlled by overall treatment computing machine in addition.
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