CN107037494B - The safe examination system of control method and control device, vehicle or container - Google Patents
The safe examination system of control method and control device, vehicle or container Download PDFInfo
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- CN107037494B CN107037494B CN201710223032.1A CN201710223032A CN107037494B CN 107037494 B CN107037494 B CN 107037494B CN 201710223032 A CN201710223032 A CN 201710223032A CN 107037494 B CN107037494 B CN 107037494B
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- 230000005855 radiation Effects 0.000 claims abstract description 73
- 238000003384 imaging method Methods 0.000 claims description 25
- 238000005070 sampling Methods 0.000 claims description 16
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 4
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- 230000004927 fusion Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
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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 proposes the safe examination systems of control method, control device and the vehicle of a kind of safe examination system for vehicle or container or container, wherein safe examination system includes: the first X-ray emitter being oppositely arranged and the first detector array, the second X-ray emitter and second array detector and control method includes: to emit the second x-ray of the first x-ray and radiation energy higher than the radiation energy of first x-ray to vehicle to be checked or container respectively by the first, second X-ray emitter；It is received respectively by the first, second detector array across the first X of vehicle to be checked or container, the second x-ray and the first, second scan data of corresponding generation；First, second scan data is separately converted to merge to obtain the targeted scans image of vehicle or container to be checked after the first, second scan image.The technical solution, is able to ascend the performance of equipment, shows the scan image of vehicle or container entirety clear and accurately.
Description
Technical field
The present invention relates to Internet technical fields, in particular to the control for vehicle or the safe examination system of container
Method processed, for vehicle or container safe examination system control device and vehicle or container safe examination system.
Background technique
Currently, the X of higher radiation energy can be launched for the safe examination system of a kind of existing vehicle or container
Light ray carries out radiation scanning imaging, the advantage is that penetration capacity is very strong, can penetrate vehicle or the thicker part of container,
Clearly image displaying is carried out to it, for example loads the cargo of weight and the engine and battery section of vehicle, but for
Vehicle or the relatively thin part of container, there are obvious shortcoming in the image hierarchy and readability shown to it, such as unloaded
Container and vehicle cab part；And for the safe examination system of existing another vehicle or container, it can launch
The x-ray of lower radiation energy carries out radiation scanning imaging, and penetration capacity is relatively weak, therefore cannot penetrate vehicle or container
Thicker part is to carry out clearly image displaying, but the part relatively thin for vehicle or container, image hierarchy and clear
Showing for degree is relatively strong.
Therefore, how to make same safe examination system within the scope of controllable costs, part that can be thicker to vehicle or container
It carries out clearly radiation scanning to be imaged, can also show the image hierarchy and clearly details of vehicle or container well, at
For technical problem urgently to be resolved.
Summary of the invention
The present invention is based on the above problems, proposes a kind of new technical solution, is able to ascend vehicle or container
The radiation scanning imaging inspection performance of safe examination system, shows the scan image of vehicle or container entirety clear and accurately.
In view of this, according to the first aspect of the invention, a kind of safe examination system for vehicle or container is proposed
The safe examination system of control method, the vehicle or container includes: that the first X-ray emitter being oppositely arranged and the first array are visited
Survey device, the second X-ray emitter being oppositely arranged and second array detector, wherein first X-ray emitter with it is described
Second X-ray emitter is set side by side, and first detector array and the second array detector are set side by side, the control
Method processed includes: by first X-ray emitter and second X-ray emitter respectively to vehicle to be checked or container
Emit the first x-ray and the second x-ray, wherein the radiation energy of second x-ray is higher than first X-ray and penetrates
The radiation energy of line；It is received respectively by first detector array and the second array detector across the vehicle to be checked
Or container first x-ray and second x-ray and corresponding generate the first scan data and the second scanning
Data；First scan data and second scan data are separately converted to the first scan image and the second scanning figure
Picture；First scan image and second scan image are merged into the targeted scans figure of the vehicle to be checked or container
Picture.
In the technical scheme, two sets of X-rays being oppositely arranged by being arranged in the safe examination system of vehicle or container
Generator and detector array, respectively transmitting have the x-ray of different radiation energies to same vehicle to be checked or container into
The imaging of row radiation scanning, the radiation energy of specific second x-ray is higher than the radiation energy of the first x-ray, in this way, passing through
The first scan image that the combination of first X-ray emitter and the first detector array is got can be very good to show vehicle to be checked
Or the different piece of container between contrast and details, and detected by the second X-ray emitter and second array
The second scan image that the combination of device is got can carry out clearly radiation scanning to the thicker part of vehicle or container
Imaging, and then vehicle or container to be checked by effectively being merged the first scan image and the second scan image
Targeted scans image, and be only the minor modifications to the safe examination system of existing vehicle or container, can controllably at
Make same safe examination system in this range, clearly radiation scanning can be carried out to the thicker part of vehicle or container and be imaged,
Also vehicle or container is effectively promoted in the image hierarchy and clearly details that can show vehicle or container well
The radiation scanning imaging inspection performance of safe examination system, and clear and accurate the scan image for showing vehicle or container entirety.
In the above-mentioned technical solutions, it is preferable that the first scanning number is generated by first detector array sampling
According to frequency it is identical as the frequency of second scan data is generated by second array detector sampling.
In the technical scheme, it in order to ensure the imaging resolution of the first scan image and the second scan image is consistent, answers
It is corresponding across vehicle to be checked or container to ensure that two detector arrays sampling of the safe examination system of vehicle or container receives
X-ray and generate corresponding scan data frequency it is consistent, so that it is guaranteed that two scan images can be merged effectively.
In any of the above-described technical solution, it is preferable that described by first scan image and second scan image
The step of merging into the targeted scans image of the vehicle to be checked or container, comprising: by first scan image and described
Second scan image is divided into corresponding multiple images block；Each pair of corresponding image block is obtained respectively in first scanning
Second gray value of first sum of the grayscale values in second scan image in image；According to first sum of the grayscale values
The locating threshold range of second gray value difference determines the target image block employed in the targeted scans image.
In the technical scheme, the clear and accurate targeted scans figure of vehicle or container entirety to be checked in order to obtain
Picture first can be divided into multiple images block for the first scan image and the second scan image are corresponding, for example, according to vehicle to be checked or
Each component part of container is divided, and then according to the gray value to each pair of image block for adhering to different scanning image separately
Analysis determines the image block finally used in targeted scans image, that is, in the first scan image and the second scan image
Middle comparison obtains same a part of relatively clear scanning imagery final as its of vehicle or container to be checked as a result, to clear
The clear scan image for accurately showing vehicle or container entirety.
In any of the above-described technical solution, it is preferable that second gray value according to first sum of the grayscale values point
Locating threshold range does not determine the step of target image block employed in the targeted scans image, comprising: when described
One in second gray value described in first sum of the grayscale values lower than the first gray threshold and another is higher than the first gray scale threshold
When value, the corresponding image block of gray value that will be above first gray threshold is placed in the target as the target image block
In the corresponding position of scan image；One in the second gray value described in first sum of the grayscale values is higher than the second gray threshold
And another be lower than second gray threshold when, will be less than the corresponding image block conduct of gray value of second gray threshold
The target image block is placed in the corresponding position of the targeted scans image, wherein second gray threshold is greater than described
First gray threshold；When the second gray value described in first sum of the grayscale values is below first gray threshold, by gray scale
It is worth higher image block to be placed in as the target image block in the corresponding position of the targeted scans image；When first ash
When angle value and second gray value are above first gray threshold and are lower than second gray threshold, by two gray scales
It is worth in corresponding two image blocks the biggish image block of brightness or will be in described two image blocks in its adjacent area
The higher image block of Information Meter is placed in the corresponding position of the targeted scans image as the target image block；When described
When second gray value described in one sum of the grayscale values is above second gray threshold, using the lower image block of gray value as described in
Target image block is placed in the corresponding position of the targeted scans image.
In the technical scheme, threshold value locating for the gray value of each pair of image block is defined by two gray thresholds of setting
Range, wherein the second gray threshold is greater than the first gray threshold, shows image overexposure higher than the second gray threshold, and lower than the
One gray threshold shows image exposure deficiency；Further specifically, if one gray value is lower than first in two image blocks
Gray threshold and another is higher than or two image blocks in one gray value be higher than the second gray threshold and another is lower than,
It then will and image accordingly clear in the first gray threshold to the gray value between the second gray threshold in this normal range (NR)
The image block of high resolution is fused in targeted scans image as target image block；And if the gray value of two image blocks is equal
Higher than the second gray threshold or it is below the second gray threshold, then by image more higher than more visible and image resolution ratio in the two
Block is fused in targeted scans image as target image block；And if the gray value of two image blocks is in normal range (NR)
It is interior, then it can adjacent area Information Meter highest optimal according to brightness of image or image block (such as the adjacent area of image block
Standard deviation is larger) principle selection target image block, in this way, can then complete having for the first scan image and the second scan image
Effect fusion.
In any of the above-described technical solution, it is preferable that the value range of the radiation energy of first x-ray are as follows:
160KeV~450KeV；The value range of the radiation energy of second x-ray are as follows: 1MeV~9MeV.
In the technical scheme, in order to make through the first x-ray and the second x-ray radiation scanning vehicle to be checked or packaging
Case generate the first scan image and the second scan image can effective integration be targeted scans image, meet the exposure need of image
It asks, the value range of the radiation energy of the first x-ray can take the radiation energy of 160KeV~450KeV, the second x-ray
Value range can take 1MeV~9MeV, it is preferable that can be respectively 320KeV and 4MeV.
According to the second aspect of the invention, a kind of control device of safe examination system for vehicle or container is proposed,
The safe examination system of the vehicle or container includes: the first X-ray emitter being oppositely arranged and the first detector array, relatively
The second X-ray emitter and second array detector being arranged, wherein first X-ray emitter and second X-ray
Generator is set side by side, and first detector array and the second array detector are set side by side, the control device packet
It includes: the first control module, for controlling first X-ray emitter and second X-ray emitter respectively to vehicle to be checked
Or container emit the first x-ray and the second x-ray, wherein the radiation energy of second x-ray is higher than described
The radiation energy of first x-ray；Second control module is visited for controlling first detector array and the second array
It surveys device and receives first x-ray across the vehicle to be checked or container and second x-ray and correspondence respectively
Generate the first scan data and the second scan data；Conversion module, for scanning first scan data and described second
Data are separately converted to the first scan image and the second scan image；Image-forming module is used for first scan image and institute
State the targeted scans image that the second scan image merges into the vehicle to be checked or container.
In the technical scheme, two sets of X-rays being oppositely arranged by being arranged in the safe examination system of vehicle or container
Generator and detector array, respectively transmitting have the x-ray of different radiation energies to same vehicle to be checked or container into
The imaging of row radiation scanning, the radiation energy of specific second x-ray is higher than the radiation energy of the first x-ray, in this way, passing through
The first scan image that the combination of first X-ray emitter and the first detector array is got can be very good to show vehicle to be checked
Or the different piece of container between contrast and details, and detected by the second X-ray emitter and second array
The second scan image that the combination of device is got can carry out clearly radiation scanning to the thicker part of vehicle or container
Imaging, and then vehicle or container to be checked by effectively being merged the first scan image and the second scan image
Targeted scans image, and be only the minor modifications to the safe examination system of existing vehicle or container, can controllably at
Make same safe examination system in this range, clearly radiation scanning can be carried out to the thicker part of vehicle or container and be imaged,
Also vehicle or container is effectively promoted in the image hierarchy and clearly details that can show vehicle or container well
The radiation scanning imaging inspection performance of safe examination system, and clear and accurate the scan image for showing vehicle or container entirety.
In the above-mentioned technical solutions, it is preferable that second control module is specifically used for: control first array detection
The frequency that device sampling generates first scan data generates second scanning with by second array detector sampling
The frequency of data is identical.
In the technical scheme, it in order to ensure the imaging resolution of the first scan image and the second scan image is consistent, answers
It is corresponding across vehicle to be checked or container to ensure that two detector arrays sampling of the safe examination system of vehicle or container receives
X-ray and generate corresponding scan data frequency it is consistent, so that it is guaranteed that two scan images can be merged effectively.
In any of the above-described technical solution, it is preferable that the image-forming module specifically includes: dividing submodule, be used for institute
It states the first scan image and second scan image is divided into corresponding multiple images block；Acquisition submodule, for obtaining
Take each pair of corresponding image block respectively in the first sum of the grayscale values in first scan image in second scan image
The second gray value；Submodule is imaged, the threshold value locating for the difference of the second gray value according to first sum of the grayscale values
Range determines the target image block employed in the targeted scans image.
In the technical scheme, the clear and accurate targeted scans figure of vehicle or container entirety to be checked in order to obtain
Picture first can be divided into multiple images block for the first scan image and the second scan image are corresponding, for example, according to vehicle to be checked or
Each component part of container is divided, and then according to the gray value to each pair of image block for adhering to different scanning image separately
Analysis determines the image block finally used in targeted scans image, that is, in the first scan image and the second scan image
Middle comparison obtains same a part of relatively clear scanning imagery final as its of vehicle or container to be checked as a result, to clear
The clear scan image for accurately showing vehicle or container entirety.
In any of the above-described technical solution, it is preferable that the imaging submodule is specifically used for: when first sum of the grayscale values
One in second gray value lower than the first gray threshold and another will be above institute when being higher than first gray threshold
The corresponding image block of gray value for stating the first gray threshold is placed in the phase of the targeted scans image as the target image block
It answers in position；One in the second gray value described in first sum of the grayscale values is higher than the second gray threshold and another is lower than
When second gray threshold, the corresponding image block of gray value of second gray threshold will be less than as the target image
Block is placed in the corresponding position of the targeted scans image, wherein second gray threshold is greater than first gray threshold；
When the second gray value described in first sum of the grayscale values is below first gray threshold, by the higher image block of gray value
It is placed in as the target image block in the corresponding position of the targeted scans image；Second described in first sum of the grayscale values
When gray value is above first gray threshold and is lower than second gray threshold, by two gray values corresponding two
The biggish image block of brightness or by the higher figure of Information Meter in described two image blocks in its adjacent area in a image block
As block is placed in the corresponding position of the targeted scans image as the target image block；Described in first sum of the grayscale values
When second gray value is above second gray threshold, it is placed in using the lower image block of gray value as the target image block
In the corresponding position of the targeted scans image.
In the technical scheme, threshold value locating for the gray value of each pair of image block is defined by two gray thresholds of setting
Range, wherein the second gray threshold is greater than the first gray threshold, shows image overexposure higher than the second gray threshold, and lower than the
One gray threshold shows image exposure deficiency；Further specifically, if one gray value is lower than first in two image blocks
Gray threshold and another is higher than or two image blocks in one gray value be higher than the second gray threshold and another is lower than,
It then will and image accordingly clear in the first gray threshold to the gray value between the second gray threshold in this normal range (NR)
The image block of high resolution is fused in targeted scans image as target image block；And if the gray value of two image blocks is equal
Higher than the second gray threshold or it is below the second gray threshold, then by image more higher than more visible and image resolution ratio in the two
Block is fused in targeted scans image as target image block；And if the gray value of two image blocks is in normal range (NR)
It is interior, then it can adjacent area Information Meter highest optimal according to brightness of image or image block (such as the adjacent area of image block
Standard deviation is larger) principle selection target image block, in this way, can then complete having for the first scan image and the second scan image
Effect fusion.
In any of the above-described technical solution, it is preferable that the value range of the radiation energy of first x-ray are as follows:
160KeV~450KeV；The value range of the radiation energy of second x-ray are as follows: 1MeV~9MeV.
In the technical scheme, in order to make through the first x-ray and the second x-ray radiation scanning vehicle to be checked or packaging
Case generate the first scan image and the second scan image can effective integration be targeted scans image, meet the exposure need of image
It asks, the value range of the radiation energy of the first x-ray can take the radiation energy of 160KeV~450KeV, the second x-ray
Value range can take 1MeV~9MeV, it is preferable that can be respectively 320KeV and 4MeV.
According to the third aspect of the invention we, the safe examination system of a kind of vehicle or container, including above-mentioned technical side are proposed
The control device of the safe examination system of vehicle or container, therefore, the peace of the vehicle or container are used for described in any one of case
Check system has all beneficial technical effects of the control device, and details are not described herein.
According to the technical solution of the present invention, it is able to ascend the radiation scanning imaging inspection of the safe examination system of vehicle or container
Performance shows the scan image of vehicle or container entirety clear and accurately.
Detailed description of the invention
The process that Fig. 1 shows the control method of the safe examination system for vehicle or container of the embodiment of the present invention is shown
It is intended to；
The first scan image and the second scan image are merged into targeted scans figure Fig. 2 shows the embodiment of the present invention
The method flow schematic diagram of picture；
Fig. 3 shows the schematic block of the control device of the safe examination system for vehicle or container of the embodiment of the present invention
Figure；
Fig. 4 shows the schematic block diagram of image-forming module shown in Fig. 3；
Fig. 5 shows the schematic block diagram of the vehicle of the embodiment of the present invention or the safe examination system of container.
Specific embodiment
It is with reference to the accompanying drawing and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
The vehicle of the embodiment of the present invention or the safe examination system of container include: the first X-ray hair being oppositely arranged
Raw device and the first detector array, the second X-ray emitter being oppositely arranged and second array detector, wherein the first X
Ray generator is set side by side with second X-ray emitter, first detector array and second array detection
Device is set side by side.
Below with reference to Fig. 1 and Fig. 2 to the controlling party of the safe examination system for vehicle or container of the embodiment of the present invention
Method is specifically described.
As shown in Figure 1, the control method of the safe examination system for vehicle or container of embodiment according to the present invention, packet
Include following below scheme step:
Step S10, by first X-ray emitter and second X-ray emitter respectively to vehicle to be checked or
Container emits the first x-ray and the second x-ray, wherein the radiation energy of second x-ray is higher than described first
The radiation energy of x-ray.
Step S20, by first detector array and the second array detector receive respectively across it is described to
First x-ray and second x-ray of inspection vehicle or container and corresponding generation the first scan data and second
Scan data.
Further, the frequency of first scan data is generated by first detector array sampling and passes through institute
The frequency for stating second array detector sampling generation second scan data is identical.
It is understood that in order to ensure the imaging resolution of the first scan image and the second scan image is consistent, it should be true
The two detector arrays sampling for protecting the safe examination system of vehicle or container receives the corresponding X for passing through vehicle to be checked or container
The light ray and frequency for generating corresponding scan data is consistent, so that it is guaranteed that two scan images can be merged effectively.
Step S30, by first scan data and second scan data be separately converted to the first scan image and
Second scan image.
First scan image and second scan image are merged into the vehicle to be checked or packaging by step S40
The targeted scans image of case.
In this embodiment, it is sent out by two sets be arranged in the safe examination system of the vehicle or container X-rays being oppositely arranged
Raw device and detector array, there is the x-ray of different radiation energies to carry out to same vehicle to be checked or container for transmitting respectively
Radiation scanning imaging, the radiation energy of specific second x-ray are higher than the radiation energy of the first x-ray, in this way, passing through the
The first scan image that the combination of one X-ray emitter and the first detector array is got can be very good to show vehicle to be checked
Or contrast and details between the different piece of container, and pass through the second X-ray emitter and second array detector
The second scan image for getting of combination the thicker part of vehicle or container can be carried out clearly radiation scanning at
Picture, and then vehicle or container to be checked by effectively being merged the first scan image and the second scan image
Targeted scans image, and be only the minor modifications to the safe examination system of existing vehicle or container, it can be in controllable costs
Make same safe examination system in range, clearly radiation scanning can be carried out to the thicker part of vehicle or container and be imaged,
The image hierarchy and clearly details that vehicle or container can be showed well, are effectively promoted the peace of vehicle or container
The radiation scanning imaging inspection performance of check system, and clear and accurate the scan image for showing vehicle or container entirety.
Further, as shown in Fig. 2, the step S40 in above-described embodiment can be executed specifically are as follows:
First scan image and second scan image are divided into corresponding multiple images by step S402
Block.
Step S404 obtains first sum of the grayscale values of each pair of corresponding image block respectively in first scan image and exists
The second gray value in second scan image.
Step S406, according to the difference of the second gray value described in first sum of the grayscale values, locating threshold range is determined in institute
State target image block employed in targeted scans image.
In this embodiment, the clear and accurate targeted scans image of vehicle or container entirety to be checked in order to obtain,
The first scan image and the second scan image correspondence first can be divided into multiple images block, such as according to vehicle to be checked or packaging
Each component part of case is divided, and then according to the analysis of the gray value to each pair of image block for adhering to different scanning image separately
The image block finally used in targeted scans image is determined, that is, comparing in the first scan image and the second scan image
Compared with the same a part of relatively clear scanning imagery final as its for obtaining vehicle or container to be checked as a result, to clear quasi-
Really show the scan image of vehicle or container entirety.
Further, the step S406 in above-described embodiment is specifically included: the second ash described in first sum of the grayscale values
One in angle value lower than the first gray threshold and another will be above first gray scale when being higher than first gray threshold
The corresponding image block of the gray value of threshold value is placed in the corresponding position of the targeted scans image as the target image block；When
One in second gray value described in first sum of the grayscale values be higher than the second gray threshold and another lower than second ash
When spending threshold value, will be less than the corresponding image block of gray value of second gray threshold be placed in as the target image block it is described
In the corresponding position of targeted scans image, wherein second gray threshold is greater than first gray threshold；When described first
When second gray value described in sum of the grayscale values is below first gray threshold, using the higher image block of gray value as the mesh
Logo image block is placed in the corresponding position of the targeted scans image；The second gray value described in first sum of the grayscale values is high
In first gray threshold and be lower than second gray threshold when, will be in corresponding two image blocks of two gray values
The biggish image block of brightness or using the higher image block of the Information Meter in described two image blocks in its adjacent area as institute
Target image block is stated to be placed in the corresponding position of the targeted scans image；The second gray value described in first sum of the grayscale values
When being above second gray threshold, the lower image block of gray value is placed in the target as the target image block and is swept
In the corresponding position of tracing picture.
In this embodiment, threshold value model locating for the gray value of each pair of image block is defined by two gray thresholds of setting
It encloses, wherein the second gray threshold is greater than the first gray threshold, shows image overexposure higher than the second gray threshold, and is lower than first
Gray threshold shows image exposure deficiency；Further specifically, if one gray value is lower than the first ash in two image blocks
Spend threshold value and another is higher than or two image blocks in one gray value be higher than the second gray threshold and another is lower than, then
By in the first gray threshold to the gray value between the second gray threshold in this normal range (NR), accordingly clear and image divides
The high image block of resolution is fused in targeted scans image as target image block；And if the gray value of two image blocks is high
In the second gray threshold or it is below the second gray threshold, then by image block more higher than more visible and image resolution ratio in the two
It is fused in targeted scans image as target image block；And if the gray value of two image blocks is in normal range (NR),
It then can adjacent area Information Meter highest optimal according to brightness of image or image block (such as the standard of the adjacent area of image block
Difference is larger) principle selection target image block, in this way, can then complete effectively melting for the first scan image and the second scan image
It closes.
In the above-described embodiments, the first gray threshold can be the 5% of the entire dynamic range of gray value, and the second gray scale
Threshold value can be the 95% of the entire dynamic range of gray value, for example, when the entire dynamic range of gray value is 0~255 totally 256
When grade, then the 5% of entire dynamic range is 256 × 5% (i.e. the first gray thresholds), and the 95% of entire dynamic range is
256 × 95% (i.e. the second gray thresholds).
Further, in any of the above-described embodiment, the value range of the radiation energy of first x-ray are as follows:
160KeV~450KeV；The value range of the radiation energy of second x-ray are as follows: 1MeV~9MeV.
In this embodiment, in order to make through the first x-ray and the second x-ray radiation scanning vehicle to be checked or container
Generate the first scan image and the second scan image can effective integration be targeted scans image, meet the exposure need of image
It asks, the value range of the radiation energy of the first x-ray can take the radiation energy of 160KeV~450KeV, the second x-ray
Value range can take 1MeV~9MeV, it is preferable that can be respectively 320KeV and 4MeV.
The control of the safe examination system for vehicle or container of the embodiment of the present invention is filled below with reference to Fig. 3 and Fig. 4
It sets and is specifically described.
As shown in figure 3, the control device of the safe examination system for vehicle or container of embodiment according to the present invention
300, comprising: the first control module 302, the second control module 304, conversion module 306 and image-forming module 308.
Wherein, first control module 302 is for controlling first X-ray emitter and second X-ray hair
Raw device emits the first x-ray and the second x-ray to vehicle to be checked or container respectively, wherein second x-ray
Radiation energy is higher than the radiation energy of first x-ray；Second control module 304 is for controlling first array
Detector and the second array detector receive respectively across first x-ray of the vehicle to be checked or container and
Second x-ray and the first scan data of corresponding generation and the second scan data；The conversion module 306 is used for will be described
First scan data and second scan data are separately converted to the first scan image and the second scan image；The imaging mould
Block 308 is used to merge into first scan image and second scan image target of the vehicle to be checked or container
Scan image.
In this embodiment, it is sent out by two sets be arranged in the safe examination system of the vehicle or container X-rays being oppositely arranged
Raw device and detector array, there is the x-ray of different radiation energies to carry out to same vehicle to be checked or container for transmitting respectively
Radiation scanning imaging, the radiation energy of specific second x-ray are higher than the radiation energy of the first x-ray, in this way, passing through the
The first scan image that the combination of one X-ray emitter and the first detector array is got can be very good to show vehicle to be checked
Or contrast and details between the different piece of container, and pass through the second X-ray emitter and second array detector
The second scan image for getting of combination the thicker part of vehicle or container can be carried out clearly radiation scanning at
Picture, and then vehicle or container to be checked by effectively being merged the first scan image and the second scan image
Targeted scans image, and be only the minor modifications to the safe examination system of existing vehicle or container, it can be in controllable costs
Make same safe examination system in range, clearly radiation scanning can be carried out to the thicker part of vehicle or container and be imaged,
The image hierarchy and clearly details that vehicle or container can be showed well, are effectively promoted the peace of vehicle or container
The radiation scanning imaging inspection performance of check system, and clear and accurate the scan image for showing vehicle or container entirety.
Further, in the above-described embodiments, second control module 304 is specifically used for: control first array
The frequency that detector sampling generates first scan data generates described second with by second array detector sampling
The frequency of scan data is identical.
It in this embodiment, should be true in order to ensure the imaging resolution of the first scan image and the second scan image is consistent
The two detector arrays sampling for protecting the safe examination system of vehicle or container receives the corresponding X for passing through vehicle to be checked or container
The light ray and frequency for generating corresponding scan data is consistent, so that it is guaranteed that two scan images can be merged effectively.
Further, as shown in figure 4, in any of the above-described embodiment, the image-forming module 308 is specifically included: dividing son
Module 3082, acquisition submodule 3084 and imaging submodule 3086.
Wherein, the division submodule 3082 for drawing first scan image and second scan image respectively
It is divided into corresponding multiple images block；The acquisition submodule 3084 is for obtaining each pair of corresponding image block respectively described first
Second gray value of first sum of the grayscale values in second scan image in scan image；The imaging submodule 3086 is used
It determines in the locating threshold range of the difference of the second gray value according to first sum of the grayscale values in the targeted scans image
Employed in target image block.
In this embodiment, the clear and accurate targeted scans image of vehicle or container entirety to be checked in order to obtain,
The first scan image and the second scan image correspondence first can be divided into multiple images block, such as according to vehicle to be checked or packaging
Each component part of case is divided, and then according to the analysis of the gray value to each pair of image block for adhering to different scanning image separately
The image block finally used in targeted scans image is determined, that is, comparing in the first scan image and the second scan image
Compared with the same a part of relatively clear scanning imagery final as its for obtaining vehicle or container to be checked as a result, to clear quasi-
Really show the scan image of vehicle or container entirety.
Further, in the above-described embodiments, the imaging submodule 3086 is specifically used for: when first sum of the grayscale values
One in second gray value lower than the first gray threshold and another will be above institute when being higher than first gray threshold
The corresponding image block of gray value for stating the first gray threshold is placed in the phase of the targeted scans image as the target image block
It answers in position；One in the second gray value described in first sum of the grayscale values is higher than the second gray threshold and another is lower than
When second gray threshold, the corresponding image block of gray value of second gray threshold will be less than as the target image
Block is placed in the corresponding position of the targeted scans image, wherein second gray threshold is greater than first gray threshold；
When the second gray value described in first sum of the grayscale values is below first gray threshold, by the higher image block of gray value
It is placed in as the target image block in the corresponding position of the targeted scans image；Second described in first sum of the grayscale values
When gray value is above first gray threshold and is lower than second gray threshold, by two gray values corresponding two
The biggish image block of brightness or by the higher figure of Information Meter in described two image blocks in its adjacent area in a image block
As block is placed in the corresponding position of the targeted scans image as the target image block；Described in first sum of the grayscale values
When second gray value is above second gray threshold, it is placed in using the lower image block of gray value as the target image block
In the corresponding position of the targeted scans image.
In this embodiment, threshold value model locating for the gray value of each pair of image block is defined by two gray thresholds of setting
It encloses, wherein the second gray threshold is greater than the first gray threshold, shows image overexposure higher than the second gray threshold, and is lower than first
Gray threshold shows image exposure deficiency；Further specifically, if one gray value is lower than the first ash in two image blocks
Spend threshold value and another is higher than or two image blocks in one gray value be higher than the second gray threshold and another is lower than, then
By in the first gray threshold to the gray value between the second gray threshold in this normal range (NR), accordingly clear and image divides
The high image block of resolution is fused in targeted scans image as target image block；And if the gray value of two image blocks is high
In the second gray threshold or it is below the second gray threshold, then by image block more higher than more visible and image resolution ratio in the two
It is fused in targeted scans image as target image block；And if the gray value of two image blocks is in normal range (NR),
It then can adjacent area Information Meter highest optimal according to brightness of image or image block (such as the standard of the adjacent area of image block
Difference is larger) principle selection target image block, in this way, can then complete effectively melting for the first scan image and the second scan image
It closes.
In the above-described embodiments, the first gray threshold can be the 5% of the entire dynamic range of gray value, and the second gray scale
Threshold value can be the 95% of the entire dynamic range of gray value, for example, when the entire dynamic range of gray value is 0~255 totally 256
When grade, then the 5% of entire dynamic range is 256 × 5% (i.e. the first gray thresholds), and the 95% of entire dynamic range is
256 × 95% (i.e. the second gray thresholds).
Further, in any of the above-described embodiment, the value range of the radiation energy of first x-ray are as follows:
160KeV~450KeV；The value range of the radiation energy of second x-ray are as follows: 1MeV~9MeV.
In this embodiment, in order to make through the first x-ray and the second x-ray radiation scanning vehicle to be checked or container
Generate the first scan image and the second scan image can effective integration be targeted scans image, meet the exposure need of image
It asks, the value range of the radiation energy of the first x-ray can take the radiation energy of 160KeV~450KeV, the second x-ray
Value range can take 1MeV~9MeV, it is preferable that can be respectively 320KeV and 4MeV.
Fig. 5 shows the schematic block diagram of the vehicle of the embodiment of the present invention or the safe examination system of container.
As shown in figure 5, the vehicle of embodiment according to the present invention or the safe examination system 500 of container, including above-mentioned implementation
Described in any one of example for vehicle or container safe examination system control device 300, therefore, the vehicle or container
Safe examination system 500 has all beneficial technical effects of the control device 300, and details are not described herein.
The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, according to the technical solution of the present invention, is able to ascend
It is whole to show vehicle or container clear and accurately for the radiation scanning imaging inspection performance of the safe examination system of vehicle or container
Scan image.
In the present invention, term " first ", " second " are only used for the purpose described, are not understood to indicate or imply phase
To importance；Term " multiple " indicates two or more；Term " connected ", " connection " etc. shall be understood in a broad sense, for example,
It may be fixed connection or may be dismantle connection, or integral connection；It can be directly connected, centre can also be passed through
Medium is indirectly connected.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of control method of the safe examination system for vehicle or container, which is characterized in that the vehicle or container
Safe examination system includes: the first X-ray emitter being oppositely arranged and the first detector array, the second X-ray hair being oppositely arranged
Raw device and second array detector, wherein first X-ray emitter is set side by side with second X-ray emitter, institute
It states the first detector array and the second array detector is set side by side, the control method includes:
By first X-ray emitter and second X-ray emitter respectively to vehicle to be checked or container transmitting the
One x-ray and the second x-ray, wherein the radiation energy of second x-ray is higher than the spoke of first x-ray
Penetrate energy；
It is received respectively by first detector array and the second array detector across the vehicle to be checked or packaging
First x-ray and second x-ray of case and the first scan data of corresponding generation and the second scan data；
First scan data and second scan data are separately converted to the first scan image and the second scan image；
First scan image and second scan image are merged into the targeted scans of the vehicle to be checked or container
Image, comprising:
First scan image and second scan image are divided into corresponding multiple images block；
Obtaining each pair of corresponding image block, the first sum of the grayscale values in first scan image is scanned described second respectively
The second gray value in image；
According to the difference of the second gray value described in first sum of the grayscale values, locating threshold range is determined in the targeted scans figure
Target image block as employed in.
2. control method according to claim 1, which is characterized in that
It is visited by the frequency that first detector array sampling generates first scan data with by the second array
The frequency for surveying device sampling generation second scan data is identical.
3. control method according to claim 2, which is characterized in that described second according to first sum of the grayscale values
The step of locating threshold range of gray value difference determines the target image block employed in the targeted scans image, packet
It includes:
One in the second gray value described in first sum of the grayscale values lower than the first gray threshold and another be higher than it is described
When the first gray threshold, the corresponding image block of gray value that will be above first gray threshold is set as the target image block
In the corresponding position of the targeted scans image；
One in the second gray value described in first sum of the grayscale values be higher than the second gray threshold and another lower than described
When the second gray threshold, the corresponding image block of gray value that will be less than second gray threshold is set as the target image block
In the corresponding position of the targeted scans image, wherein second gray threshold is greater than first gray threshold；
When the second gray value described in first sum of the grayscale values is below first gray threshold, by the higher figure of gray value
As block is placed in the corresponding position of the targeted scans image as the target image block；
The second gray value described in first sum of the grayscale values is above first gray threshold and lower than second gray scale
When threshold value, by the biggish image block of brightness in corresponding two image blocks of two gray values or by described two image blocks
In the higher image block of Information Meter in its adjacent area the phase of the targeted scans image is placed in as the target image block
It answers in position；
When the second gray value described in first sum of the grayscale values is above second gray threshold, by the lower figure of gray value
As block is placed in the corresponding position of the targeted scans image as the target image block.
4. control method according to any one of claim 1 to 3, which is characterized in that
The value range of the radiation energy of first x-ray are as follows: 160KeV~450KeV；
The value range of the radiation energy of second x-ray are as follows: 1MeV~9MeV.
5. a kind of control device of the safe examination system for vehicle or container, which is characterized in that the vehicle or container
Safe examination system includes: the first X-ray emitter being oppositely arranged and the first detector array, the second X-ray hair being oppositely arranged
Raw device and second array detector, wherein first X-ray emitter is set side by side with second X-ray emitter, institute
It states the first detector array and the second array detector is set side by side, the control device includes:
First control module, for controlling first X-ray emitter and second X-ray emitter respectively to vehicle to be checked
Or container emit the first x-ray and the second x-ray, wherein the radiation energy of second x-ray is higher than described
The radiation energy of first x-ray；
Second control module is received respectively for controlling first detector array and the second array detector across institute
State vehicle or container to be checked first x-ray and second x-ray and it is corresponding generate the first scan data and
Second scan data；
Conversion module, for by first scan data and second scan data be separately converted to the first scan image and
Second scan image；
Image-forming module, for first scan image and second scan image to be merged into the vehicle to be checked or packaging
The targeted scans image of case, specifically includes:
Submodule is divided, for first scan image and second scan image to be divided into corresponding multiple figures
As block；
Acquisition submodule, for obtaining first sum of the grayscale values of each pair of corresponding image block respectively in first scan image
The second gray value in second scan image；
Submodule is imaged, the threshold range locating for the difference of the second gray value according to first sum of the grayscale values determines
Target image block employed in the targeted scans image.
6. control device according to claim 5, which is characterized in that second control module is specifically used for:
The frequency that the first detector array sampling generates first scan data is controlled to visit with by the second array
The frequency for surveying device sampling generation second scan data is identical.
7. control device according to claim 6, which is characterized in that the imaging submodule is specifically used for:
One in the second gray value described in first sum of the grayscale values lower than the first gray threshold and another be higher than it is described
When the first gray threshold, the corresponding image block of gray value that will be above first gray threshold is set as the target image block
In the corresponding position of the targeted scans image；
One in the second gray value described in first sum of the grayscale values be higher than the second gray threshold and another lower than described
When the second gray threshold, the corresponding image block of gray value that will be less than second gray threshold is set as the target image block
In the corresponding position of the targeted scans image, wherein second gray threshold is greater than first gray threshold；
When the second gray value described in first sum of the grayscale values is below first gray threshold, by the higher figure of gray value
As block is placed in the corresponding position of the targeted scans image as the target image block；
The second gray value described in first sum of the grayscale values is above first gray threshold and lower than second gray scale
When threshold value, by the biggish image block of brightness in corresponding two image blocks of two gray values or by described two image blocks
In the higher image block of Information Meter in its adjacent area the phase of the targeted scans image is placed in as the target image block
It answers in position；
When the second gray value described in first sum of the grayscale values is above second gray threshold, by the lower figure of gray value
As block is placed in the corresponding position of the targeted scans image as the target image block.
8. control device according to any one of claims 5 to 7, which is characterized in that
The value range of the radiation energy of first x-ray are as follows: 160KeV~450KeV；
The value range of the radiation energy of second x-ray are as follows: 1MeV~9MeV.
9. the safe examination system of a kind of vehicle or container characterized by comprising as described in any one of claim 5 to 8
The control device of safe examination system for vehicle or container.
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| US5838759A (en) * | 1996-07-03 | 1998-11-17 | Advanced Research And Applications Corporation | Single beam photoneutron probe and X-ray imaging system for contraband detection and identification |
| BRPI0719616B1 (en) * | 2006-12-28 | 2019-07-16 | Nuctech Company Limited | METHOD AND SYSTEM FOR BINOCULAR STEROSCOPIC RADIOGRAPHIC IMAGE FORMATION |
| CN101435780B (en) * | 2008-12-12 | 2010-12-01 | 哈尔滨工业大学 | Intelligent monitoring method of optical fiber with ice structure |
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