CN101034071B - System for inspecting hiding objects inside-outside human body by central radiated dual-energy X-ray - Google Patents
System for inspecting hiding objects inside-outside human body by central radiated dual-energy X-ray Download PDFInfo
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- CN101034071B CN101034071B CN2007100803912A CN200710080391A CN101034071B CN 101034071 B CN101034071 B CN 101034071B CN 2007100803912 A CN2007100803912 A CN 2007100803912A CN 200710080391 A CN200710080391 A CN 200710080391A CN 101034071 B CN101034071 B CN 101034071B
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Abstract
This invention relates to a flesh inside and outside hidden object checking system of meso-position collineation type, double energy and x-ray, includes X-ray source, x-ray collimating assembly, inspection access, manned slide with handrail, X ray detector, image acquisition system, CGP and control system and operating console;the X-ray source high position place, aim at person belly; x-ray collimating assembly composed by radiation source collimator and protective cup; X ray detector adopt double energy detector, separately detect high and low energy x-ray that penetrating flesh; Image processing and control system carry out compound treat to picked x-ray double energy signal, with different color to denote examining substance image of different material characteristics. This invention not only inspect flesh exterior hidden object, but also in particular aim at identifying flesh interrior narcotic, mainly used to judge drugs and other contraband that hide in stomach, recta and vagina.
Description
Technical field
The present invention relates to a kind of public safety checkout facility, relate in particular to the interior outer Tibet of a kind of X ray human body quality testing and look into equipment.
Background technology
The outer Tibet quality testing is looked into equipment in the present existing X ray human body, and light source position generally all adopts x-ray source in remote placement, and the X-ray bundle is faced upward side according to human body.The imaging aspect adopts traditional x-ray imaging technology, and the monoergic signal that collects is handled, and discerns by the gray-level and the graph outline of inspected object fluoroscopy images.This identification more depends on image processing techniques, and true resolution is lower.Gun in the contraband goods, the article that the cutter isodensity is bigger all have metastable profile, and its feature is obvious, and traditional x-ray imaging technology generally can identify.And for explosive and drugs, traditional x-ray imaging technology but is difficult to identification, especially is difficult to discern the drugs of ensconcing in the human body.Because explosive and drugs all are organism, atomic number is approaching, and also very approaching with the atomic number of tissue, they are less to the absorptivity difference of X-ray radiation, and the grey scale change of image is also less, thereby differentiates relatively difficulty from gray level.Explosive and drugs are not because there is a specific shape in addition, thereby single to differentiate from appearance profile also be the comparison difficulty.
Summary of the invention
The present invention carries out line sweep by using a wide spectrum x-ray source with higher ray high pressure to tested personnel, solved the problem that existing equipment exists, and makes tested personnel drugs that hide the inside and outside etc. fixedly the contraband goods of profile is not clear to debate.
The outer Tibet quality testing is looked into system in a kind of meta direct-injection type double energy X-ray human body, manned slide plate, X-ray detector, image capturing system, Computer Image Processing and the control system and the operating console that comprise x-ray source, X ray collimating components, inspection passage, Armrest, wherein:
Described x-ray source is high-order to be placed, and aims at tested personnel's belly;
Described X ray collimating components is made up of radiographic source collimating apparatus and protective cover two parts;
Described X-ray detector adopts dual energy detector, surveys the high and low power X ray that penetrates detected human body respectively;
Described Flame Image Process and control system are carried out Combined Processing to the X ray dual intensity signal that collects, and distinguish the analyte image of organism, inorganics and potpourri with different colours.
According to tested personnel's average height the upright position of described x-ray source is set, guarantees that simultaneously the maximum inclination angle of x-ray bombardment human body is not more than 35 °.
Described manned slide plate adopts aluminium material skateboard or slider structure, steadily drags by motor, travelling belt.
In checking process, described manned slide plate moves reciprocatingly, every inspection once, manned slide plate experience is once reciprocal; When manned slide plate arrives two ends, be subjected to limit switch control and out of service.
Described inspection passage adopts the door case type structure, and X-ray detector is installed in the doorframe, and the arrangement architecture of X-ray detector can be linear, L shaped or three kinds of forms of C shape.
Compared with prior art, the invention has the beneficial effects as follows:
(1) because the human abdomen is the key position of hiding drugs in human bodies, the present invention aims at belly with the high-order placement of x-ray source, make that the transmission image of belly is the most true to nature, penetrability is best, under equal transmission image quality requirements, the exposure dose minimum of this scheme, image restoring is the most accurate; Floor area obviously reduces simultaneously, is convenient to the placement and the transportation of equipment;
(2) dual energy detects and makes image level abundant, and testing result is more accurate;
(3) organism and inorganics show with the different colours difference, have effectively given prominence to drugs and other contraband goods, and operating personnel can be distinguished better;
(4) travelling belt drags manned slide plate, and noise is low, moves steadily;
(5) door case type channel set passage and detector are in one, and structure is very compact, detector system sealing, protection against the tide;
(6) chain heavy dose of leakage of ray that prevents that any maloperation from causing of security protection makes system more safe and reliable.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a fundamental diagram of the present invention;
Fig. 3 is the human body phantom image that collects.
Embodiment
Now reaching embodiment in conjunction with the accompanying drawings is described in further detail the present invention.
Fig. 1 is a structural representation of the present invention.With reference to figure 1, wherein 1 is the X ray collimating components, has effectively utilized x-ray source, prevents the ray leakage, and pointolite is become the sectored light face, becomes straight line.X ray collimating components 1 is made up of radiographic source collimating apparatus and protective cover two parts, and the radiographic source collimating apparatus is directly controlled the width and the deflection angle of X ray outgoing seam; 2 is x-ray source, and its source tested personnel's sole height H of heart distance is 860mm, aims at the belly of height 1.7m human body substantially, is applicable to that the highest height reaches the tested personnel of 2m, and the effective emission angle of ray is 69.4 °, complete machine width L
1Be 1852mm, the allowable angle of inclination of radiation exposure human body is 34.7 °.Can adjust the height and position of x-ray source 2 according to tested personnel's average height, also want corresponding adjustment complete machine width L simultaneously
1, with the maximum inclination angle that guarantees the radiation exposure human body less than 35 °; 3 is computing machine, and 4 is subrack, and 5 is fan, and 6 is manned slide plate, drags manned slide plate 6 with travelling belt, and noise is low, moves steadily.This manned slide plate 6 has only 3mm thick, and the unique design of structure has reached it and dragged and indeformable rigidity requirement.In the moving process of manned slide plate 6, finish line sweep to human body, generate stay-in-grade radioscopic image synchronously.Single detection time, single checked that dosage is less than 2.5 μ Sv less than 15 seconds.7 is control desk, and 9 is signal acquiring system.8 is the door case type passage, and its compact conformation with detector and passage organic unity, can be regulated detector position.Passage inner width L
2Be 700mm, doorframe thickness 354mm, doorframe hem width 90mm, the thick 70mm of lintel, whole sensation is light and handy, no sense of depression.At inner detector and the signal gain circuit board installed of door body.Detector circuit lath surface gluing, circuit board soaks three anti-lacquers (waterproof, protection against the tide, anti-salt fog), the inner drying agent of placing of door body, and door-plate adds the vacuum rubber sealing gasket, these measures reach moistureproof effect substantially, and the equipment that makes can be applied in the relatively moister environment such as south, seashore.Between gate, the outside door-plate and door body of door case type passage 8, between the lintel lid and lintel body of door case type passage 8, interlock switch can be installed.Selected interlock switch meets the IEC60947-5-1 standard.The disconnection of any one switch all can cause system cut-off, stops to stop to launch X ray to the power supply of high pressure radiographic source.
Fig. 2 is a fundamental diagram of the present invention.With reference to figure 2, when system starts working, power up by control desk 7 keyboards, open computing machine 3, x-ray source 2 is instructed pipe, manned slide plate 6 returns initial position.After all preliminary works were finished, system's ready lamp (green) was bright, and expression can be carried out human body at present and check.At this moment, tested personnel climb up manned slide plate, hand, pin are placed on yellow indicating positions and put on an eyeshade.Equipment operator is sent manned slide plate 6 advancement commands by control desk 7 keyboards, x-ray source 2 preheatings, and X ray is launched immediately, and the ray emission lamp is bright, screen spool color display.After manned sled mechanism was all by the X ray covering of the fan, spool stopped, and showed the human body all images on the screen, and manned sled mechanism stops under limit switch control, and tested personnel get off, and manned slide plate 6 returns initial position under operator's control.Like this, an end-to-end finishes.
Next need image is handled and differentiated, its specific practice is: utilize function key on control desk 7 keyboards to the image that the collects display process of being correlated with, for example step by step highlight, add dark, edge enhancing, subregion amplification, white and black displays, image inversion etc., these operations are supplementary meanss that drugs are judged, compare each image, judged result is more accurate.Each tested personnel's image all can be stored in the hard disc of computer automatically, by pulling back image, can check the image that had before obtained, and these images can also be handled with the image processing function key of keyboard.
System utilizes the material analysis software of special software bag that image is carried out material analysis and processing, calculates the equivalent atom ordinal number of various article, thereby distinguishes organism, inorganics and potpourri, and gives different colors when showing.Usually, less than 10, then material is classified as organism, be shown as Yellow-to-orange as the equivalent atom ordinal number; As the equivalent atom ordinal number is 10 to 17, then material is classified as potpourri, shown in green to cyan; Greater than 17, then material is classified as inorganics as the equivalent atom ordinal number, be shown as blueness.The object blocked up or density is excessive owing to can not be penetrated by X ray, all is shown as dark red.If it is orange-yellow that the article in the image are rendered as, then should pay special attention to.
Fig. 3 is the human body phantom image that system acquisition of the present invention arrives.As can see from Figure 3, reach intravaginal drugs 11 and 12 in tested personnel's stomach and be synthetic equivalent drugs.Pistol 10 is not external.External indistinct lines are clothing.Tissue and drugs are orange-yellow, but difference to some extent on gray scale.The organism basic display is orange-yellow, the atomic number height, and density is big, and gray level is also high.
The above embodiment only is the preferred embodiments of the present invention; the invention is not restricted to the foregoing description; for persons skilled in the art; the any conspicuous change of under the prerequisite that does not deviate from the principle of the invention it being done all belongs to the protection domain of design of the present invention and claims.
Claims (5)
1. the interior outer Tibet of a meta direct-injection type double energy X-ray human body quality testing is looked into system, comprise manned slide plate, X-ray detector, image capturing system, Computer Image Processing and control system and the operating console of x-ray source, X ray collimating components, inspection passage, Armrest, it is characterized in that:
Described x-ray source is high-order to be placed, and aims at tested personnel's belly;
Described X ray collimating components is made up of radiographic source collimating apparatus and protective cover two parts;
Described X-ray detector adopts dual energy detector, surveys the high and low power X ray that penetrates detected human body respectively;
Described Flame Image Process and control system are carried out Combined Processing to the X ray dual intensity signal that collects, and distinguish the analyte image of organism, inorganics and potpourri with different colours.
2. the outer Tibet quality testing is looked into system in the human body according to claim 1, it is characterized in that: according to tested personnel's average height the upright position of described x-ray source is set, guarantees that simultaneously the maximum inclination angle of x-ray bombardment human body is not more than 35 °.
3. the outer Tibet quality testing is looked into system in the human body according to claim 1, it is characterized in that: described manned slide plate adopts aluminium material skateboard or slider structure, steadily drags by motor, travelling belt.
4. the outer Tibet quality testing is looked into system in the human body according to claim 3, and it is characterized in that: in checking process, described manned slide plate moves reciprocatingly, every inspection once, manned slide plate experience is once reciprocal; When manned slide plate arrives two ends, be subjected to limit switch control and out of service.
5. the outer Tibet quality testing is looked into system in the human body according to claim 1, it is characterized in that: described inspection passage adopts the door case type structure, and X-ray detector is installed in the doorframe, and the arrangement architecture of X-ray detector can be linear, L shaped or three kinds of forms of C shape.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100803912A CN101034071B (en) | 2006-11-01 | 2007-03-09 | System for inspecting hiding objects inside-outside human body by central radiated dual-energy X-ray |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200610114198.1 | 2006-11-01 | ||
| CN200610114198 | 2006-11-01 | ||
| CN2007100803912A CN101034071B (en) | 2006-11-01 | 2007-03-09 | System for inspecting hiding objects inside-outside human body by central radiated dual-energy X-ray |
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| CN101034071A CN101034071A (en) | 2007-09-12 |
| CN101034071B true CN101034071B (en) | 2010-12-01 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102455305B (en) * | 2010-11-01 | 2014-06-18 | 北京中盾安民分析技术有限公司 | Image processing method used by device for detecting hidden matters on human body by using dual-energy X-rays |
| CN102621166A (en) * | 2011-01-30 | 2012-08-01 | 中铁快运股份有限公司 | Self-propelled radiant article detection system and detection method thereof |
| CN102768371A (en) * | 2012-08-07 | 2012-11-07 | 安徽启路达光电科技有限公司 | Week X-ray reciprocating security inspection device |
| US9576219B2 (en) * | 2015-07-14 | 2017-02-21 | ADANI Systems, Inc. | Method and system for detection of contraband narcotics in human digestive tract |
| EP3323002B1 (en) * | 2015-07-14 | 2020-08-12 | Adani Systems, Inc. | Method and system for detection of contraband narcotics in human digestive tract |
| CN105326517B (en) * | 2015-11-10 | 2018-09-28 | 重庆慧触科技有限公司 | X-ray/DR thoracic photography dedicated units |
| CN106199747A (en) * | 2016-08-08 | 2016-12-07 | 何山 | A kind of control device of X-ray machine visual system image acquisition |
| DE102018205758A1 (en) * | 2018-04-16 | 2019-10-17 | Siemens Healthcare Gmbh | Medical device and method for operating a medical device |
| CN109187598A (en) * | 2018-10-09 | 2019-01-11 | 青海奥越电子科技有限公司 | Prohibited items detection system and method based on Digital Image Processing |
| JP7360841B2 (en) * | 2019-08-09 | 2023-10-13 | 株式会社日立ソリューションズ | X-ray image processing system, method, and program |
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| CN1297149A (en) * | 2000-12-23 | 2001-05-30 | 中国科学院合肥智能机械研究所 | Device and method for detecting drug hidden in human body |
| US6418189B1 (en) * | 2000-01-24 | 2002-07-09 | Analogic Corporation | Explosive material detection apparatus and method using dual energy information of a scan |
| CN200984188Y (en) * | 2006-11-01 | 2007-12-05 | 公安部第一研究所 | Middle position direct projection type double energy X ray human body inside and outside parts examining system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6418189B1 (en) * | 2000-01-24 | 2002-07-09 | Analogic Corporation | Explosive material detection apparatus and method using dual energy information of a scan |
| CN1297149A (en) * | 2000-12-23 | 2001-05-30 | 中国科学院合肥智能机械研究所 | Device and method for detecting drug hidden in human body |
| CN200984188Y (en) * | 2006-11-01 | 2007-12-05 | 公安部第一研究所 | Middle position direct projection type double energy X ray human body inside and outside parts examining system |
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