CN111192391A - Pedestrian passageway gate control method and device based on images and/or videos - Google Patents
Pedestrian passageway gate control method and device based on images and/or videos Download PDFInfo
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Abstract
The application discloses a pedestrian passageway gate control method based on images and/or videos, which comprises the following steps: setting a limited passing area; receiving images and/or videos collected by at least one camera; detecting pedestrians in the limited passing area according to the images and/or videos; and judging whether the detected pedestrian passes the verification, if so, judging that the pedestrian can pass the gate, otherwise, judging that the gate violation behavior occurs. Corresponding image and/or video-based pedestrian passageway gate control apparatus, non-volatile computer-readable storage medium, and electronic apparatus are also disclosed. By applying the technical scheme disclosed by the application, the gate switch of the pedestrian passageway can be reasonably and accurately controlled.
Description
Technical Field
The application relates to the technical field of gate control, in particular to a pedestrian passageway gate control method and device based on images and/or videos.
Background
In places such as office buildings, residential areas, stations and the like where safety management of entrances and exits is required, pedestrian passageway gates are often used. A pedestrian passageway gate is shown in fig. 1, which is a mechanical barrier that allows passage of a legitimate person. The pedestrian passageway gate generally comprises a machine core, a machine case, gates (gate wings, gate rods and the like), a control module and auxiliary modules for alarming, counting, passing detection and the like.
The design requirement of the gate machine is that the gate of the gate machine is allowed to be opened for passing after a passer-by verifies the legality (card swiping or biometric identification verification). However, in practical applications, a plurality of pedestrians may trail or a pedestrian may pass with an object, and in order to prevent this, an infrared detection device is usually installed in the gate.
Usually, infrared detection device installs in the both sides of floodgate machine box, has more than 8 pairs usually, and every pair infrared detection device realizes the detection of sending out one and receiving, promptly: if the infrared detection light beam is blocked, the corresponding area is regarded as a person or an object; if the infrared detection light beam is not blocked, the corresponding area is regarded as having no person or object. It is clear that the disadvantage of this detection by detecting whether the infrared detection beam is blocked is: it is only possible to detect whether the infrared detection beam is blocked, and it is impossible to distinguish whether it is blocked by a person or an object. When the infrared detection beam is continuously blocked, it is impossible to distinguish whether the blocking object is a person or an object (the person is fat or the object is bulky) or a plurality of persons or objects. Sometimes, these floodgates are also used in an environment where a bicycle or a motorcycle can be carried, and the infrared detection device will cause a misjudgment phenomenon because the wheel can transmit the infrared detection beam.
Because the space that the floodgate machine provided these infrared detection device is limited, need certain distance apart just can install a pair of infrared detection device usually, consequently there are many blind areas in this kind of detection mode too, leads to the unable anti-trailing that realizes betterly. Here, the anti-tailing means preventing a person who has not been legally authenticated (card swiping or biometric identification, such as face or fingerprint identification, etc.) from trying to pass through a pedestrian passageway gate along with a person who has passed the legal authentication.
In summary, in the practical application of the existing infrared detection device commonly used in the industry in the gate, whether a person trails or not cannot be accurately judged, so that the gate may be triggered to be closed by mistake, and the gate may hit a pedestrian or damage an article carried by the pedestrian.
Disclosure of Invention
The application aims to provide a pedestrian passageway gate control method and equipment based on images and/or videos so as to reasonably and accurately control the gate switch of the pedestrian passageway gate.
The application discloses a pedestrian passageway gate control method based on images and/or videos, which comprises the following steps:
setting a limited passing area;
receiving images and/or videos collected by at least one camera;
detecting pedestrians in the limited passing area according to the images and/or videos;
and judging whether the detected pedestrian passes the verification, if so, judging that the pedestrian can pass the gate, otherwise, judging that the gate violation behavior occurs.
Preferably, the method further comprises:
and when the pedestrian is detected in the limited passing area according to the images and/or videos, video target tracking is carried out on the pedestrian according to the images and/or videos acquired by the camera by adopting a video target tracking algorithm.
Preferably, after the pedestrian detection is performed in the restricted passage area according to the image and/or the video, the method further includes:
and when the pedestrian is detected in the restricted passing area, performing video target tracking on the detected pedestrian by adopting a video target tracking algorithm according to the image and/or video acquired by the camera.
Preferably, after the pedestrian detection is performed in the restricted passage area according to the image and/or the video, the method further includes:
and judging whether the pedestrian detected in the limited passing area is greater than 1, and if so, judging that trailing behaviors occur.
Preferably, the method further comprises:
setting a free passage area, wherein the free passage area does not have intersection with the limited passage area;
detecting pedestrians in the free passing area according to the video acquired by the camera;
when the pedestrian is detected in the free passage area, the pedestrian attitude behavior analysis algorithm is adopted to prejudge the gate-breaking behavior, and if the gate-breaking behavior is judged to possibly occur, the gate-breaking behavior is early warned.
Preferably, the method further comprises:
and according to the images and/or videos acquired by the camera, calculating and marking the pedestrian-pedestrian communication unit and the pedestrian-appendage communication unit, and controlling the passage gate to be closed only after the pedestrian-pedestrian communication unit or the pedestrian-appendage communication unit completely passes through.
Preferably, the calculating and marking of the pedestrian-pedestrian communication unit and the pedestrian-appendage communication unit includes: and calculating and marking the pedestrian-pedestrian communication unit and the pedestrian-appendage communication unit by using pedestrian detection, video target tracking, connected region analysis and marking algorithm.
The application also discloses pedestrian passageway floodgate machine controlgear based on image and/or video, includes:
the setting module is used for setting a limited passing area;
the receiving module is used for receiving images and/or videos acquired by at least one camera;
the detection module is used for detecting pedestrians in the limited passing area according to the images and/or the videos;
and the judging module is used for judging whether the detected pedestrian passes the verification or not, judging that the pedestrian can pass the gate if the detected pedestrian passes the verification, and otherwise, judging that the gate violation behavior occurs.
The present application also discloses a non-transitory computer-readable storage medium storing instructions that, when executed by a processor, cause the processor to perform the steps of the image and/or video based pedestrian crossing gate control method as previously described.
The present application also discloses an electronic device characterized by comprising the non-volatile computer-readable storage medium as described above, and the processor having access to the non-volatile computer-readable storage medium.
According to the technical scheme, the beneficial effects and innovation points of the technical scheme provided by the invention comprise that:
the video and/or image of the gate entering and exiting machine are collected through the camera, the position of the pedestrian is positioned in real time by utilizing a pedestrian detection algorithm and a target tracking algorithm, so that a basis is provided for judging the gate running and trailing behaviors, and the gate control module reasonably and accurately controls the on and off of the gate. Therefore, compared with the traditional scheme of triggering the gate switch control through an infrared sensor, the scheme can achieve higher control accuracy and robustness.
In addition, on one hand, as cameras are installed in many places, some cameras capable of shooting the attention area can be directly used as input sources of videos and/or images to control the shutter switch, and therefore cost is saved. On the other hand, for the places where the cameras are not installed, the input of the cameras for controlling the gate, which is distributed in the application, can be utilized as the monitoring video to be processed, analyzed and stored, and the cost is reduced. Therefore, if the entrance guard and the security are regarded as a system, the overall cost is reduced.
Drawings
FIG. 1 is a schematic diagram of a conventional pedestrian passageway gate;
FIG. 2 is a schematic flow chart of a method for determining tailgating and gate break behavior according to the present application;
fig. 3 is a schematic flow chart of a method for predicting a gate violation behavior according to the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below by referring to the accompanying drawings and examples.
In order to solve the problems in the prior art, the invention provides a pedestrian passageway gate machine control method based on images and/or videos.
The pedestrian passageway gate control method based on the images and/or videos mainly comprises the following steps:
setting a limited passing area;
receiving images and/or videos collected by at least one camera;
detecting pedestrians in the limited passing area according to the images and/or videos;
and judging whether the detected pedestrian passes the verification, if so, judging that the pedestrian can pass the gate, otherwise, judging that the gate violation behavior occurs.
The following is a detailed description of the pedestrian passageway gate control scheme based on images and/or videos according to the present invention:
(1) setting a region to be noted including a free passage region and a limited passage region
Since the image and/or video range directly captured by the camera may contain areas where no pedestrian detection is required, such as locations further away from the gate, outside the window, etc., the area of interest may be defined at the software level, i.e.: only a portion of the frames of the image and/or video are used as input sources for the pedestrian detection algorithm.
Further, the area of interest may be divided into a free-passage area and a restricted-passage area, and there is no intersection between the free-passage area and the restricted-passage area, wherein:
the free passage area is as follows: the pedestrian can freely pass through the area, and in the free passing area, the pedestrian can not be judged as the break-through area no matter how the pedestrian moves, such as the area outside the queuing line, the area enclosed by the line and the passage wall.
The restricted passage area is: and the pedestrian inputs the passing authority to enable the gate to pass through the passing area after the gate is authorized or verified.
(2) Pedestrian detection
And detecting whether the pedestrian exists in the concerned area by using a pedestrian detection algorithm, and positioning the position of each pedestrian. The pedestrian detection algorithm takes images and/or videos shot by a camera as input, outputs position information of pedestrians, and the position information is used as a part of input of relevant functional modules for subsequent detection of trailing, gate violation and the like. As the pedestrian detection is susceptible to the influences of wearing, size, shielding, posture, shooting visual angle of a monitoring camera and the like of the pedestrian, in order to overcome the influences, the performance and the operation speed of the pedestrian detection algorithm can be improved by combining the technologies in (3) and (4).
(3) Video target tracking
Unlike algorithms that locate the position of an object in a static image (which may be a static frame extracted from a video) based on pedestrian detection alone (e.g., pedestrian detection algorithms targeting a pedestrian), video object tracking algorithms locate the position of an object in the current frame using known object position information from the previous N frames (where N ≧ 1) in combination with other available information. Specifically, an existing video target tracking algorithm may be adopted, and details are not described here.
Because the video target tracking utilizes the known target position information of the previous N frames, the calculation amount required by positioning the target can be reduced under certain conditions, and the positioning accuracy and precision are improved. If the pedestrian's location information has been located by a pedestrian detection algorithm, the use of a video target tracking algorithm may continuously update the pedestrian's location coordinates without detection. This is particularly effective for pedestrian detection difficulties caused by changes in pedestrian size, attitude and viewing angle during pedestrian movement.
In the whole process of acquiring the position coordinates of the pedestrian in the region of interest, the pedestrian detection algorithm and the video target tracking algorithm may work cooperatively, and the cooperative manner includes, but is not limited to, the following two manners:
1) and the synchronous operation is realized, so that on one hand, the missing rate of pedestrian detection can be reduced by using the video target tracking algorithm, and on the other hand, the tracking error which possibly occurs in the video target tracking algorithm can be corrected by using the pedestrian detection algorithm.
2) And performing segmentation work, namely once the pedestrian is successfully detected by using the pedestrian detection algorithm, handing the subsequent continuous positioning work of the pedestrian to a video target tracking algorithm with lower calculation amount and/or more accurate positioning to complete. The flow of the segmentation work can be repeated under the condition that the video target tracking algorithm is lost.
(4) Multi-camera input source
The images and/or videos captured by the cameras installed at different positions are combined to serve as input sources of a pedestrian detection algorithm and a video target tracking algorithm, and the important problems of low positioning accuracy and low precision caused by the fact that the size, the posture and the capturing visual angle of pedestrians are changed and are shielded can be solved. In order to improve the accuracy of pedestrian detection and video target tracking, a plurality of cameras which are installed at different positions and have different shooting visual angles can be used as image and/or video input sources, and the pedestrian detection algorithm and the video target tracking algorithm are adopted to position and track pedestrians.
(5) Detecting trailing and gate violation behavior
The pedestrian detection and video target tracking algorithm is used, and the output value of an authority input module (such as a non-contact IC card, biological identification, input password and the like) is combined, so that whether the trailing and/or gate break behavior exists or not can be judged. One possible decision logic is shown in FIG. 2, and includes:
step 1: when a pedestrian is detected in the restricted passage area, step 2 is performed.
Step 2: and judging whether the output value of the authority input module indicates that the authorization passes, if so, continuing to execute the step 3, otherwise, judging that a gate break behavior occurs, and ending the judgment.
And 3, step 3: and judging whether the pedestrian detected in the limited passing area is larger than 1, if so, judging that a trailing behavior occurs, and finishing the judgment. Here, the number of persons detected in the restricted passage area can be determined using a pedestrian detection algorithm.
If trailing and/or gate break behavior is detected, an alarm may be given.
In addition, the pedestrian detection and video target tracking algorithm is used, and the pedestrian attitude behavior analysis algorithm for analyzing the pedestrian attitude behavior is combined, so that the possible gate break behavior can be pre-judged and early warning can be performed on the conditions. One possible decision logic is shown in FIG. 3, and includes:
step 1: when a pedestrian is detected in the free passage area, step 2 is executed.
Step 2: and (3) prejudging the gate-breaking behavior by adopting a pedestrian attitude behavior analysis algorithm, namely judging whether the gate-breaking behavior is possible to appear or not, and if the gate-breaking behavior is possible to appear, early warning the gate-breaking behavior.
Here, a pedestrian attitude behavior analysis algorithm can be applied to the above-mentioned judgment logic of the present application in a machine learning manner to pre-judge the gate violation behavior.
(6) Analyzing and marking pedestrian-pedestrian communication unit and pedestrian-appendage communication unit during passing brake
The concept of the communication unit is introduced to enable the communication unit to replace a single pedestrian as a minimum unit for controlling the release of the gate, so as to avoid the damage to personal safety and property caused by the wrong switch on and off of the gate possibly caused by the single pedestrian as the minimum release unit.
The communicating means are: an integration of any number of people and/or objects directly or indirectly connected by a solid or in contact with a surface (other than the ground). The connected unit reflects the pixel area with connection in the image foreground, which is called connected area. The application provides a concept of a communicating unit to assist in controlling the opening and closing of the gate, wherein two concepts of a pedestrian-pedestrian communicating unit and a pedestrian-accessory communicating unit are provided, and a method for controlling the opening and closing of the gate based on the position relation between one of the two and the gate is provided, and the method comprises the following steps:
in order to reasonably open and close the pedestrian passageway gate, one or more overhead cameras are required to be arranged above the gate. And calculating and marking the pedestrian-pedestrian communication unit and the pedestrian-accessory communication unit by using the images and/or videos captured by the camera and using a pedestrian detection algorithm, a video target tracking algorithm, a communication area analysis algorithm and a marking algorithm, and controlling the passage gate to be closed in time only after the pedestrian-pedestrian communication unit or the pedestrian-accessory communication unit completely passes through. Meanwhile, if the pedestrian-pedestrian communication unit is observed to pass through the gate, an alarm is given.
Corresponding to the method, the application also provides a pedestrian passageway gate control device based on images and/or videos, which comprises: a processor to:
setting a limited passing area;
receiving images and/or videos collected by at least one camera;
detecting pedestrians in the limited passing area according to the images and/or videos;
and judging whether the detected pedestrian passes the verification, if so, judging that the pedestrian can pass the gate, otherwise, judging that the gate violation behavior occurs.
Preferably, the processor is specifically configured to: and when the pedestrian is detected in the limited passing area according to the images and/or videos, video target tracking is carried out on the pedestrian according to the images and/or videos acquired by the camera by adopting a video target tracking algorithm.
Preferably, the processor is specifically configured to: and when the pedestrian is detected in the restricted passing area, performing video target tracking on the detected pedestrian by adopting a video target tracking algorithm according to the image and/or video acquired by the camera.
Preferably, the processor is specifically configured to: and judging whether the pedestrian detected in the limited passing area is greater than 1, and if so, judging that trailing behaviors occur.
Preferably, the processor is specifically configured to:
setting a free passage area, wherein the free passage area does not have intersection with the limited passage area;
detecting pedestrians in the free passing area according to the video acquired by the camera;
when the pedestrian is detected in the free passage area, the pedestrian attitude behavior analysis algorithm is adopted to prejudge the gate-breaking behavior, and if the gate-breaking behavior is judged to possibly occur, the gate-breaking behavior is early warned.
Preferably, the processor is specifically configured to: and according to the images and/or videos acquired by the camera, calculating and marking the pedestrian-pedestrian communication unit and the pedestrian-appendage communication unit, and controlling the passage gate to be closed only after the pedestrian-pedestrian communication unit or the pedestrian-appendage communication unit completely passes through.
Preferably, the processor is specifically configured to: and calculating and marking the pedestrian-pedestrian communication unit and the pedestrian-appendage communication unit by using pedestrian detection, video target tracking, connected region analysis and marking algorithm.
The application also provides a pedestrian passageway gate control system based on image and/or video, including: pedestrian passageway floodgate machine controlgear, floodgate machine and at least one camera, wherein:
the at least one camera is used for collecting images and/or videos and sending the images and/or videos to the pedestrian passageway gate control equipment;
the pedestrian passageway gate control equipment is used for setting a limited passing area and detecting pedestrians in the limited passing area according to the images and/or videos received from the at least one camera; and judging whether the detected pedestrian passes the verification, if so, judging that the pedestrian can pass the gate to control the gate to be opened, otherwise, judging that a gate breaking behavior occurs to control the gate to be closed.
Furthermore, the present application also provides a non-transitory computer-readable storage medium storing instructions that, when executed by a processor, cause the processor to perform the steps of the image and/or video based pedestrian crossing gate control method as described above.
Further, the present application provides an electronic device comprising the non-volatile computer-readable storage medium as described above, and the processor having access to the non-volatile computer-readable storage medium.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (17)
1. A pedestrian passageway gate control method based on images and/or videos is characterized by comprising the following steps:
setting a limited passing area;
receiving images and/or videos collected by at least one camera;
detecting pedestrians in the limited passing area according to the images and/or videos;
and judging whether the detected pedestrian passes the verification, if so, judging that the pedestrian can pass the gate, otherwise, judging that the gate violation behavior occurs.
2. The method of claim 1, further comprising:
and when the pedestrian is detected in the limited passing area according to the images and/or videos, video target tracking is carried out on the pedestrian according to the images and/or videos acquired by the camera by adopting a video target tracking algorithm.
3. The method of claim 1, further comprising, after pedestrian detection in the restricted traffic zone from the images and/or video:
and when the pedestrian is detected in the restricted passing area, performing video target tracking on the detected pedestrian by adopting a video target tracking algorithm according to the image and/or video acquired by the camera.
4. The method according to any one of claims 1 to 3, further comprising, after pedestrian detection in the restricted passage area from the images and/or video:
and judging whether the pedestrian detected in the limited passing area is greater than 1, and if so, judging that trailing behaviors occur.
5. A method according to any one of claims 1 to 3, characterized in that the method further comprises:
setting a free passage area, wherein the free passage area does not have intersection with the limited passage area;
detecting pedestrians in the free passing area according to the video acquired by the camera;
when the pedestrian is detected in the free passage area, the pedestrian attitude behavior analysis algorithm is adopted to prejudge the gate-breaking behavior, and if the gate-breaking behavior is judged to possibly occur, the gate-breaking behavior is early warned.
6. A method according to any one of claims 1 to 3, characterized in that the method further comprises:
and according to the images and/or videos acquired by the camera, calculating and marking the pedestrian-pedestrian communication unit and the pedestrian-appendage communication unit, and controlling the passage gate to be closed only after the pedestrian-pedestrian communication unit or the pedestrian-appendage communication unit completely passes through.
7. The method of claim 6, wherein:
the calculating and marking of the pedestrian-pedestrian communication unit and the pedestrian-appendage communication unit comprises the following steps: and calculating and marking the pedestrian-pedestrian communication unit and the pedestrian-appendage communication unit by using pedestrian detection, video target tracking, connected region analysis and marking algorithm.
8. An image and/or video-based pedestrian passageway gate control apparatus, comprising: a processor to:
setting a limited passing area;
receiving images and/or videos collected by at least one camera;
detecting pedestrians in the limited passing area according to the images and/or videos;
and judging whether the detected pedestrian passes the verification, if so, judging that the pedestrian can pass the gate, otherwise, judging that the gate violation behavior occurs.
9. The pedestrian passageway gate control apparatus of claim 8, wherein the processor is specifically configured to:
and when the pedestrian is detected in the limited passing area according to the images and/or videos, video target tracking is carried out on the pedestrian according to the images and/or videos acquired by the camera by adopting a video target tracking algorithm.
10. The pedestrian passageway gate control apparatus of claim 8, wherein the processor is specifically configured to:
and when the pedestrian is detected in the restricted passing area, performing video target tracking on the detected pedestrian by adopting a video target tracking algorithm according to the image and/or video acquired by the camera.
11. The pedestrian passageway gate control apparatus of any one of claims 8 to 10, wherein the processor is specifically configured to:
and judging whether the pedestrian detected in the limited passing area is greater than 1, and if so, judging that trailing behaviors occur.
12. The pedestrian passageway gate control apparatus of any one of claims 8 to 10, wherein the processor is specifically configured to:
setting a free passage area, wherein the free passage area does not have intersection with the limited passage area;
detecting pedestrians in the free passing area according to the video acquired by the camera;
when the pedestrian is detected in the free passage area, the pedestrian attitude behavior analysis algorithm is adopted to prejudge the gate-breaking behavior, and if the gate-breaking behavior is judged to possibly occur, the gate-breaking behavior is early warned.
13. The pedestrian passageway gate control apparatus of any one of claims 8 to 10, wherein the processor is specifically configured to:
and according to the images and/or videos acquired by the camera, calculating and marking the pedestrian-pedestrian communication unit and the pedestrian-appendage communication unit, and controlling the passage gate to be closed only after the pedestrian-pedestrian communication unit or the pedestrian-appendage communication unit completely passes through.
14. The pedestrian passageway gate control apparatus of claim 13, wherein the processor is specifically configured to:
and calculating and marking the pedestrian-pedestrian communication unit and the pedestrian-appendage communication unit by using pedestrian detection, video target tracking, connected region analysis and marking algorithm.
15. An image and/or video-based pedestrian passageway gate control system, comprising: pedestrian passageway floodgate machine controlgear, floodgate machine and at least one camera, wherein:
the at least one camera is used for collecting images and/or videos and sending the images and/or videos to the pedestrian passageway gate control equipment;
the pedestrian passageway gate control equipment is used for setting a limited passing area and detecting pedestrians in the limited passing area according to the images and/or videos received from the at least one camera; and judging whether the detected pedestrian passes the verification, if so, judging that the pedestrian can pass the gate to control the gate to be opened, otherwise, judging that a gate breaking behavior occurs to control the gate to be closed.
16. A non-transitory computer readable storage medium storing instructions which, when executed by a processor, cause the processor to perform the steps of the image and/or video based pedestrian passageway gate control method of any one of claims 1 to 7.
17. An electronic device comprising the non-volatile computer-readable storage medium of claim 16, and the processor having access to the non-volatile computer-readable storage medium.
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| CN112083678A (en) * | 2020-08-25 | 2020-12-15 | 深圳市格灵人工智能与机器人研究院有限公司 | Gate security control method and device, electronic equipment and storage medium |
| CN112258719A (en) * | 2020-10-14 | 2021-01-22 | 杭州海康威视数字技术股份有限公司 | Access control system, identity authentication method and access control equipment |
| CN112446913A (en) * | 2020-11-24 | 2021-03-05 | 厦门熵基科技有限公司 | Method, device and equipment for counting pedestrian number and judging trailing of passway gate |
| CN113077556A (en) * | 2021-03-29 | 2021-07-06 | 深圳大学 | Ticket checking system and method based on pedestrian re-identification |
| CN113627345A (en) * | 2021-08-11 | 2021-11-09 | 深圳市捷顺科技实业股份有限公司 | Channel gate pedestrian detection method, device and equipment and readable storage medium |
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