CN111337989A - Active double-visual-angle screening method and device for multistage security inspection instrument - Google Patents
Active double-visual-angle screening method and device for multistage security inspection instrument Download PDFInfo
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- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
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Abstract
The invention discloses a method and a device for active double-view screening of a multi-level security check instrument, wherein a first-level security check instrument with a scanning function synchronously acquires X-ray images of a side view and a depression of a luggage; in response to the received contour information of the depression angle image and the side angle image scanned by the primary security inspection instrument, the security inspection system performs binarization processing, sends the binary processing to a model library for reasoning and judges whether contraband information is contained; synchronously acquiring an X-ray image of each frame of a lateral view angle and a depression angle of the luggage by a secondary security check instrument with a scanning function; responding to the received contour information of the depression angle image and the side view angle image scanned by the secondary security check instrument, performing binarization processing by the security check system, sending the binary information into the model library again for reasoning, and judging whether the information and the type of contraband exist; and in response to receiving the forbidden article type information, marking the forbidden article information by the security inspection system.
Description
Technical Field
The invention relates to the technical field of intelligent security inspection, in particular to a method and a device for active double-view screening of a multistage security inspection instrument.
Background
The safety inspection machine is named as a safety inspection instrument, the 'fire eyes and golden eyes' of the safety inspection instrument are realized by X-rays, the safety inspection instrument is an electronic device which sends checked luggage into an X-ray inspection channel by means of a conveyor belt to finish inspection, the luggage enters the X-ray inspection channel and blocks a package detection sensor, a detection signal is sent to a system control part to generate an X-ray trigger signal to trigger an X-ray source to emit an X-ray beam, a fan-shaped X-ray beam passing through a collimator passes through a checked object on the conveyor belt, the X-ray is absorbed by the checked object and finally bombards a dual-energy semiconductor detector arranged in the channel, the detector converts the X-ray into a signal, the weak signals are amplified and sent to a signal processing cabinet for further processing, and the double-view angle security inspection instrument in the market is widely used at present, but has more problems.
1. Security personnel need to indiscriminately inspect all parcels
In the current package security inspection scene, security inspectors are arranged to inspect packages of passengers and articles carried by passengers, generally, an operator is arranged to sit beside a display attached to the security inspector to check X-ray images in real time, so that whether the packages carried by the passengers are abnormal or not is judged, however, the operators are easy to generate visual fatigue after staring at the X-ray images in the display for a long time, particularly, the current security inspection instrument has no primary screening function when the passengers flow is high in holidays and the like, the security inspectors need to analyze the images one by one, the eyesight of the security inspectors is damaged for a long time, and meanwhile, the leakage inspection of prohibited goods can be caused by the long-term visual fatigue;
2. the security inspection efficiency is lower
At present, in a security inspection scene, the most easily caused congestion is a parcel security inspection area, inspected personnel often need to stand at an exit of a security inspection instrument to wait for the output of security inspection articles, the personnel are easily caused to be congested at a passenger flow peak, meanwhile, a lawbreaker is provided with a chance due to the disordered piece taking process, and the parcel is easily stolen.
Disclosure of Invention
The invention aims to provide an active double-visual-angle screening method for a multistage security inspection instrument, so as to solve the problems in the background technology.
In order to achieve the above object, the present invention provides an active double-view screening method for a multi-stage security inspection apparatus, which includes the following steps:
synchronously acquiring X-ray images of a lateral view angle and a depression angle of the luggage by a primary security check instrument with a scanning function;
responding to the X-ray images of the article side view and the article depression view scanned by the primary security check instrument;
collecting X-ray images of a lateral view angle and a depression angle of the luggage object scanned by the primary security check instrument by a security check system with an image contour extraction function;
in response to receiving a dual-view X-ray image of a luggage item collected by a primary security check instrument, extracting profile information of the top view and side view images by the security check system;
in response to the received contour information of the depression angle image and the side angle image scanned by the primary security inspection instrument, the security inspection system performs binarization processing, sends the binary processing to a model library for reasoning and judges whether contraband information is contained;
in response to the fact that the contraband information is received, the contraband information is sent to a secondary security check instrument through a transfer device;
synchronously acquiring an X-ray image of each frame of a lateral view angle and a depression angle of the luggage by a secondary security check instrument with a scanning function;
in response to receiving a double-view-angle X-ray image of each frame of luggage articles collected by a secondary security inspection instrument, extracting profile information of depression angle images and side view angle images by the security inspection system;
responding to the received contour information of the depression angle image and the side view angle image scanned by the secondary security check instrument, performing binarization processing by the security check system, sending the binary information into the model library again for reasoning, and judging whether the information and the type of contraband exist;
in response to receiving the type information of the contraband, marking the contraband information by the security inspection system;
the method comprises the steps that a display with a video stream playing function is connected with a security inspection system through an HDMI;
displaying, by the display, contraband annotations within the package in response to the received associated image synchronization information.
In a preferred embodiment, the method for active double-view screening by a multilevel security inspection apparatus comprises the following steps:
the X-ray image of the side visual angle and the depression angle of luggage article is gathered by one-level security check appearance in step, and the side visual angle and the depression angle X-ray image of luggage article are established and are m and n, carry out binary processing back with m and n by the security check system, send into the model bank respectively and carry out the reasoning, contain following several kinds of condition through the analysis:
setting the confidence levels of m and n as s1 and s2, respectively, and setting the primary contraband filtering threshold as a constant Y1, then:
if the confidence of any one of s1 and s2 is greater than Y1 under the set filtering threshold Y1, the parcel is determined to be a suspicious parcel, and the parcel needs to be transferred to a secondary security inspection instrument;
and if the confidence degrees of s1 and s2 are both smaller than Y1 under the set filtering threshold value Y1, the package is judged to be safe, and the package is moved out of the multi-level security inspection instrument through a channel between the primary security inspection instrument and the secondary security inspection instrument.
In a preferred embodiment, the method for active double-view screening by a multilevel security inspection apparatus comprises the following steps:
the X-ray image of each frame of the side visual angle and the depression angle of the luggage article is synchronously collected by a secondary security check instrument, the X-ray image of the side visual angle and the depression angle of the luggage article is set to be p and q, after binarization processing is carried out on p and q by a security check system, the p and q are respectively sent into a model base for reasoning, and the following conditions are contained through analysis:
setting the confidence degrees of p and q as s3 and s4 respectively, setting the secondary contraband filtering threshold value as a constant Y2, and setting the contraband information obtained after p and q inference as R1 and R2, then:
if the contraband contained in the same position in R1 and R2 is in the same classification and s1> Y and s2> Y, the contained contraband needs to be prompted to the security personnel;
if the contraband contained in the same position in R1 and R2 is in the same category and s1< Y and s2< Y, the detected contraband does not need to be prompted to the security personnel;
if the contraband contained in the same position in R1 and R2 is not the same category and s1> Y > s2, then it is necessary to synchronize the contraband in R1 to R2 and synchronize the contraband information from the side view to the video stream from the top view through the security system;
if the contraband contained in the same location in R1 and R2 is not the same classification and s2> Y > s1, then it is necessary to synchronize the contraband in R2 to R1 and the top view contraband information into the side view video stream through the security system.
In a preferred embodiment, the method for active double-view screening by a multilevel security inspection apparatus comprises the following steps:
the over-inspection speed of the primary security inspection instrument is higher than that of the secondary security inspection instrument, contour information of the depression angle and side view angle images scanned by the primary security inspection instrument is subjected to binarization processing through a security inspection system and is automatically compared under a set threshold constant Y1, and the destination of a package is automatically distributed by the security inspection system according to a result Y1;
the threshold constant Y2 that the second grade security check appearance set for is less than Y1, and the power consumption of second grade security check appearance is greater than the first grade security check appearance, the second grade security check appearance corresponds and is provided with image processing and display system.
The application also provides an active double-visual-angle screening device of the multistage security inspection instrument, and the active double-visual-angle screening method of the multistage security inspection instrument.
Compared with the prior art, the intelligent security inspection system has the advantages that along with the rapid development of science and technology, all manufacturers provide corresponding intelligent security inspection systems, so that security inspection work is gradually intelligentized, the detection rate of forbidden objects is improved to a certain extent, but in places with intensive passenger flows such as holidays, articles carried by passengers are various, the existing intelligent security inspection systems can perform intelligent identification to a certain extent, but still rely on manual identification widely, visual burdens are caused to security protection personnel, the identification accuracy is further influenced, and meanwhile, the security inspection speed in the prior art is low. The invention aims to provide an active double-visual-angle screening method for a multistage security inspection instrument, so as to solve the problems in the background technology.
Drawings
Fig. 1 is a flowchart of an active dual-view screening method for a multilevel security inspection apparatus according to an embodiment of the present invention;
fig. 2 is a flowchart of an active dual-view screening system of a multi-level security inspection apparatus according to an embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Fig. 1 is a flowchart of a method for active dual-view screening by a multilevel security inspection apparatus according to an embodiment of the present invention. As shown in the figure, the method of the present invention comprises the steps of:
step 101: the method comprises the following steps that X-ray images of a lateral view angle and a depression angle of a luggage article are synchronously acquired by a primary security check instrument with a scanning function, the luggage article is conveyed into a primary security check machine through a conveyor belt of a multi-stage security check machine, and the X-ray images of the lateral view angle and the depression angle are formed under fan-shaped X-ray beams emitted by X-ray emitting devices arranged on the inner side part and the top part of the primary security check machine;
step 102: in response to the received X-ray images of the side view angle and the depression angle of the article scanned by the primary security check instrument, a dual-energy semiconductor detector arranged in the primary security check machine converts X-rays into signals, and the signals are amplified and then sent to a security check system for further processing;
step 103: collecting X-ray images of a side view angle and a depression angle of a luggage object scanned by a primary security check instrument by a security check system with an image contour extraction function, and extracting contours of the X-ray images of the side view angle and the depression angle transmitted by a semiconductor detector of the primary security check instrument by the security check system so as to perform next analysis;
step 104: in response to receiving the double-view-angle X-ray image of the luggage item collected by the primary security inspection instrument, extracting profile information of the top view and the side view by the security inspection system, and further analyzing the extracted profile information of the side view and the top view by the security inspection system;
step 105: in response to the received contour information of the depression angle image and the side angle image scanned by the primary security inspection instrument, the security inspection system performs binarization processing, sends the binary processing to a model library for reasoning and judges whether contraband information is contained;
step 106: in response to the received contraband information, the contraband information is sent to the secondary security inspection instrument by the transfer device, the primary security inspection instrument is communicated with the secondary security inspection instrument through a plurality of direction-changeable conveying pulleys arranged in an array manner, when the security inspection system judges that the package is safe, the conveying direction of the conveying pulley is adjusted to be vertical to the connecting line of the primary security inspection instrument and the secondary security inspection instrument, thereby conveying the parcels out of the grading security check instrument, meanwhile, a conveyor belt for bearing the safe parcels is arranged in the vertical direction of the connecting line of the first-level security check instrument and the second-level security check instrument, the transmission speed of the conveyor belt is consistent with that of the conveying pulley, safe packages are transferred to the conveyor belt to wait for a carrier to take, if the security inspection system judges that the packages are suspicious, the conveying direction of the conveying pulley is adjusted to be the horizontal direction of the connecting line of the primary security inspection instrument and the secondary security inspection instrument, and the suspicious packages enter the secondary security inspection instrument for more detailed inspection;
step 107: the method comprises the following steps that a secondary security check instrument with a scanning function synchronously collects X-ray images of each frame of a lateral view angle and a depression angle of a luggage object, the luggage object is conveyed into a secondary security check machine through a conveying pulley, and the X-ray images of the lateral view angle and the depression angle are formed under fan-shaped X-ray beams emitted by X-ray emitting devices arranged at the inner side part and the top part of the secondary security check machine;
step 108: in response to receiving a double-view-angle X-ray image of each frame of luggage articles collected by a secondary security inspection instrument, extracting profile information of depression angle images and side view angle images by the security inspection system;
step 109: responding to the received contour information of the depression angle image and the side view angle image scanned by the secondary security check instrument, performing binarization processing by the security check system, sending the binary information into the model library again for reasoning, and judging whether the information and the type of contraband exist;
step 110: in response to receiving the type information of the contraband, marking the contraband information by the security inspection system;
step 111: the method comprises the steps that a display with a video stream playing function is connected with a security inspection system through an HDMI;
step 112: displaying, by the display, contraband annotations within the package in response to the received associated image synchronization information.
In a preferred embodiment, the method for active double-view screening by a multilevel security inspection apparatus comprises the following steps:
the X-ray image of the side visual angle and the depression angle of luggage article is gathered by one-level security check appearance in step, and the side visual angle and the depression angle X-ray image of luggage article are established and are m and n, carry out binary processing back with m and n by the security check system, send into the model bank respectively and carry out the reasoning, contain following several kinds of condition through the analysis:
setting the confidence levels of m and n as s1 and s2, respectively, and setting the primary contraband filtering threshold as a constant Y1, then:
if the confidence of any one of s1 and s2 is greater than Y1 under the set filtering threshold Y1, the parcel is determined to be a suspicious parcel, and the parcel needs to be transferred to a secondary security inspection instrument;
and if the confidence degrees of s1 and s2 are both smaller than Y1 under the set filtering threshold value Y1, the package is judged to be safe, and the package is moved out of the multi-level security inspection instrument through a channel between the primary security inspection instrument and the secondary security inspection instrument.
In a preferred embodiment, the method for active double-view screening by a multilevel security inspection apparatus comprises the following steps:
the X-ray image of each frame of the side visual angle and the depression angle of the luggage article is synchronously collected by a secondary security check instrument, the X-ray image of the side visual angle and the depression angle of the luggage article is set to be p and q, after binarization processing is carried out on p and q by a security check system, the p and q are respectively sent into a model base for reasoning, and the following conditions are contained through analysis:
setting the confidence degrees of p and q as s3 and s4 respectively, setting the secondary contraband filtering threshold value as a constant Y2, and setting the contraband information obtained after p and q inference as R1 and R2, then:
if the contraband contained in the same position in R1 and R2 is in the same classification and s1> Y and s2> Y, the contained contraband needs to be prompted to the security personnel;
if the contraband contained in the same position in R1 and R2 is in the same category and s1< Y and s2< Y, the detected contraband does not need to be prompted to the security personnel;
if the contraband contained in the same position in R1 and R2 is not the same category and s1> Y > s2, then it is necessary to synchronize the contraband in R1 to R2 and synchronize the contraband information from the side view to the video stream from the top view through the security system;
if the contraband contained in the same location in R1 and R2 is not the same classification and s2> Y > s1, then it is necessary to synchronize the contraband in R2 to R1 and the top view contraband information into the side view video stream through the security system.
In a preferred embodiment, the method for active double-view screening by a multilevel security inspection apparatus comprises the following steps:
the over-inspection speed of the first-level security check instrument is higher than that of the second-level security check instrument, the conveying speed of the first-level security check instrument is 0.35m/s, the conveying speed of the second-level security check instrument is 0.2m/s, through the differentiated conveying speed, the safe packages can quickly pass through the multi-level security check instruments, so that the security check speed is improved, the case speed is improved, meanwhile, the suspicious articles are further scanned in more detail through the second-level security check instrument with lower conveying speed, the contour information of the depression angle and the side angle images scanned by the second-level security check instrument is subjected to binarization processing through a security check system, and the comparison is carried out under a set threshold constant Y2;
threshold constant Y2 that second grade security check appearance set for is less than Y1, and the consumption of second grade security check appearance is greater than the first grade security check appearance, and first grade security check appearance power in this embodiment is 600W, and the power of second grade security check appearance is 1000W, select comparatively safe parcel through the built-in security check system of first grade security check appearance, and the security check personnel only need judge the parcel X light image that gets into the second grade security check appearance, has alleviateed security personnel's work burden greatly, and the built-in security check system of second grade security check appearance in this embodiment can discern the parcel simultaneously, in the video stream of synchronous display screen with contraband thing information, second grade security check appearance corresponds and is provided with image processing and display system.
The application also provides an active double-visual-angle screening device of the multistage security inspection instrument, and the active double-visual-angle screening method of the multistage security inspection instrument.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A method for active double-visual-angle screening of a multi-stage security inspection instrument is characterized by comprising the following steps: the active double-visual-angle screening method of the multilevel security inspection instrument comprises the following steps:
synchronously acquiring X-ray images of a lateral view angle and a depression angle of the luggage by a primary security check instrument with a scanning function;
responding to the X-ray images of the article side view and the article depression view scanned by the primary security check instrument;
collecting X-ray images of a lateral view angle and a depression angle of the luggage object scanned by the primary security check instrument by a security check system with an image contour extraction function;
in response to receiving a dual-view X-ray image of a luggage item collected by a primary security check instrument, extracting profile information of the top view and side view images by the security check system;
in response to the received contour information of the depression angle image and the side angle image scanned by the primary security inspection instrument, the security inspection system performs binarization processing, sends the binary processing to a model library for reasoning and judges whether contraband information is contained;
in response to the fact that the contraband information is received, the contraband information is sent to a secondary security check instrument through a transfer device;
synchronously acquiring an X-ray image of each frame of a lateral view angle and a depression angle of the luggage by a secondary security check instrument with a scanning function;
in response to receiving a double-view-angle X-ray image of each frame of luggage articles collected by a secondary security inspection instrument, extracting profile information of depression angle images and side view angle images by the security inspection system;
responding to the received contour information of the depression angle image and the side view angle image scanned by the secondary security check instrument, performing binarization processing by the security check system, sending the binary information into the model library again for reasoning, and judging whether the information and the type of contraband exist;
in response to receiving the type information of the contraband, marking the contraband information by the security inspection system;
the method comprises the steps that a display with a video stream playing function is connected with a security inspection system through an HDMI;
displaying, by the display, contraband annotations within the package in response to the received associated image synchronization information.
2. The method of multi-level security inspection instrument active dual view screening of claim 1, characterized by: the active double-visual-angle screening method of the multilevel security inspection instrument comprises the following steps:
the X-ray image of the side visual angle and the depression angle of luggage article is gathered by one-level security check appearance in step, and the side visual angle and the depression angle X-ray image of luggage article are established and are m and n, carry out binary processing back with m and n by the security check system, send into the model bank respectively and carry out the reasoning, contain following several kinds of condition through the analysis:
setting the confidence levels of m and n as s1 and s2, respectively, and setting the primary contraband filtering threshold as a constant Y1, then:
if the confidence coefficient of any one of s1 and s2 is greater than Y1 under the set filtering threshold Y1, the parcel is judged to be a suspicious parcel, and the parcel needs to be transferred to a secondary security inspection instrument;
and if the confidence degrees of s1 and s2 are both smaller than Y1 under the set filtering threshold value Y1, the package is judged to be safe, and the package is moved out of the multi-level security inspection instrument through a channel between the primary security inspection instrument and the secondary security inspection instrument.
3. The method of multi-level security inspection instrument active dual view screening of claim 1, characterized by: the active double-visual-angle screening method of the multilevel security inspection instrument comprises the following steps:
the X-ray image of each frame of the side visual angle and the depression angle of the luggage article is synchronously collected by a secondary security check instrument, the X-ray image of the side visual angle and the depression angle of the luggage article is set to be p and q, after binarization processing is carried out on p and q by a security check system, the p and q are respectively sent into a model base for reasoning, and the following conditions are contained through analysis:
setting the confidence degrees of p and q as s3 and s4 respectively, setting the secondary contraband filtering threshold value as a constant Y2, and setting the contraband information obtained after p and q inference as R1 and R2, then:
if the contraband contained in the same position in R1 and R2 is in the same classification and s1> Y and s2> Y, the contained contraband needs to be prompted to the security personnel;
if the contraband contained in the same position in R1 and R2 is in the same category and s1< Y and s2< Y, the detected contraband does not need to be prompted to the security personnel;
if the contraband contained in the same position in R1 and R2 is not the same category and s1> Y > s2, then it is necessary to synchronize the contraband in R1 to R2 and synchronize the contraband information from the side view to the video stream from the top view through the security system;
if the contraband contained in the same location in R1 and R2 is not the same classification and s2> Y > s1, then it is necessary to synchronize the contraband in R2 to R1 and the top view contraband information into the side view video stream through the security system.
4. The method of multi-level security inspection instrument active dual view screening of claim 1, characterized by: the active double-visual-angle screening method of the multilevel security inspection instrument comprises the following steps:
the over-inspection speed of the primary security inspection instrument is higher than that of the secondary security inspection instrument, contour information of the depression angle and side view angle images scanned by the primary security inspection instrument is subjected to binarization processing through a security inspection system and is automatically compared under a set threshold constant Y1, and the destination of a package is automatically distributed by the security inspection system according to a result Y1;
the threshold constant Y2 that the second grade security check appearance set for is less than Y1, and the power consumption of second grade security check appearance is greater than the first grade security check appearance, the second grade security check appearance corresponds and is provided with image processing and display system.
5. An active double-visual-angle screening device of a multi-stage security check instrument is characterized in that the device adopts any one of the 1-4 active double-visual-angle screening methods of the multi-stage security check instrument.
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Cited By (4)
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| CN111751387A (en) * | 2020-07-10 | 2020-10-09 | 安徽启新明智科技有限公司 | Intelligent scanning and storing method for contraband |
| CN114167508A (en) * | 2021-11-18 | 2022-03-11 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | Security inspection device and method |
| CN114660097A (en) * | 2022-03-23 | 2022-06-24 | 成都智元汇信息技术股份有限公司 | Synchronous correction method and system based on double sources and double visual angles |
| WO2023035770A1 (en) * | 2021-09-09 | 2023-03-16 | 同方威视技术股份有限公司 | Intelligent luggage item security inspection system and method |
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| CN114660097A (en) * | 2022-03-23 | 2022-06-24 | 成都智元汇信息技术股份有限公司 | Synchronous correction method and system based on double sources and double visual angles |
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Application publication date: 20200626 |