CN110874551A - Image processing method for access control gate passage logic control - Google Patents
Image processing method for access control gate passage logic control Download PDFInfo
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- CN110874551A CN110874551A CN201811017077.4A CN201811017077A CN110874551A CN 110874551 A CN110874551 A CN 110874551A CN 201811017077 A CN201811017077 A CN 201811017077A CN 110874551 A CN110874551 A CN 110874551A
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- 238000004891 communication Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 8
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
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Abstract
The invention discloses an image processing method for access gate passage logic control, which comprises the following steps: shooting images in the channel by using a camera arranged on the gate, and sending the shot images to a computer; the image processing software is used for capturing the facial features of passengers so as to judge people or objects; the type, the position, the quantity and the moving direction of the moving target in the channel are correctly judged by utilizing an image processing technology; combining the protection sensor in the channel with image information from a camera, so that all human body, object and blind area information in the channel are mutually supplemented and mutually verified; the method comprises the steps of integrating specific ticket swiping information of a ticket card reader, virtually limiting an effective area in a gate channel, and accurately judging the traffic logic; the computer sends a door opening and closing signal to the door mechanism according to the processed result. The invention is more accurate and reliable, and solves the problems of inaccurate counting of the photoelectric sensor, close following of two persons, distinguishing of large luggage and passengers, imposition of free tickets of other persons and the like.
Description
Technical Field
The invention relates to the technical field of image processing, in particular to an image processing method which is used for the passage logic control of an entrance guard gate and can identify various passage states in a gate channel.
Background
The gate machine is widely used in places such as subways, high-speed rails, airports, tourist attractions, factories, office buildings and the like. The gate inhibition machine is divided into a three-roller gate machine, a wing gate machine (also called a leaf gate and a scissors gate machine), a swing gate machine (also called a flapping gate machine), a translation gate machine and a full-height rotation gate machine, and the basic working principle is consistent: under the effective release signal, the gate releases the blocking device and opens the door leaf; when the passenger passes through the blocking door leaf, the gate door leaf is closed. Whether the passenger passes through the door body or not is detected, and the passenger passes through a plurality of pedestrians, so that the detection technology is a key detection technology of the gate machine and is called passage logic.
Wing gate, swing gate, and sliding gate typically use multiple opposing photoelectric sensors mounted on the chassis on both sides of the aisle to detect passengers and baggage. As shown in fig. 1, when the infrared ray of the correlation sensor is not blocked, the receiving sensor sends a logic "1" (or logic "0") signal to the controller; when the infrared ray of the path correlation type sensor is blocked, the receiving sensor sends a logic '0' (or logic '1') signal to the controller; when the passenger enters the gate passage, the infrared rays of some sensors are shielded; when the passenger walks from front to back in the corridor, all sensors are occluded and then not occluded. This results in the multi-sensor signal changing from "1" to "0" (or "0" to "1") alternately, and the controller determines whether the passenger has passed through the gate, whether the passenger has carried luggage or a child, and whether several passengers have passed through the gate based on the changes in the sensor signals.
The passing logic requires that whether the passengers pass through the gate can be accurately judged, the number of people passing through the gate can be accurately calculated, whether the passengers carry luggage or children can be accurately judged, whether the phenomena of trailing and the like can be accurately judged, and the like. Otherwise, the ticket checking gate will generate false action: the authorized passengers cannot pass through the gate; the door can be closed when a certain number of passengers pass through the door without finishing passing; adults pass and children cannot pass; passengers are blocked by passing luggage, and the passengers pass normally. The ticket checking gate can bring complaints and even injuries to passengers, and a user can not trust the ticket checking gate.
When the photoelectric sensor is shielded, it cannot be distinguished whether the body of a passenger blocks the sensor or a carried article (such as luggage) blocks the sensor, so that the controller often makes a misjudgment. For example: when a passenger carries a luggage case to pass through a gate passage, the total height of the pull rod luggage case is about 1100mm, the front width and the rear width are about 300mm, the arm of the passenger pushes the luggage case upwards, the distance between the luggage case and the passenger is about 200mm, and the passing logic can consider that two passengers pass through the gate, which is typical misjudgment.
When the distance between two passengers is close, the detection mode of the photoelectric sensor is generally regarded as one person, and the counting is inaccurate.
In summary, the current domestic and foreign access control gate traffic logic generally adopts a photoelectric sensor detection technology, and when pedestrians pass through the gate, the simple traffic situation in the channel can be identified, but the ubiquitous problems are as follows: the pedestrian traffic behavior and the relationship between the pedestrian and goods motion of the load cannot be identified and processed, so the detection principle of the photoelectric sensor has serious technical defects.
Disclosure of Invention
The invention aims to provide a more accurate and reliable detection means, and the access control gate adopts an image vision processing technology for passing logic, so that the problem of inaccurate counting of a photoelectric sensor, the problem of close following of two persons, the problem of distinguishing large luggage and passengers, the problem of inaccurate counting of a plurality of passengers passing in a short distance, the problem of entering by using free tickets (old people, tourist guides, officers and the like) of other persons and the like are solved.
In order to solve the problems existing in the background technology, the invention adopts the following technical scheme: the image processing method for the access gate passage logic control comprises the following steps:
(1) shooting images in the channel by using a camera arranged on the gate, and sending the shot images to a computer;
(2) the method comprises the following steps that image processing software built in a computer is used for capturing facial features of passengers, so that people or objects are judged;
(3) the type, the position, the quantity and the moving direction of the moving target in the channel are correctly judged by utilizing an image processing technology;
(4) combining the protection sensor in the channel with image information from a camera, so that all human body, object and blind area information in the channel are mutually supplemented and mutually verified;
(5) the method comprises the steps of integrating specific ticket swiping information of a ticket card reader, virtually limiting an effective area in a gate channel, and accurately judging the traffic logic;
(6) the computer sends a door opening and closing signal to the door mechanism according to the processed result, thereby controlling the opening and closing state of the door mechanism.
As a further improvement of the present invention; and a plurality of photoelectric sensors electrically connected with the computer are arranged near the door mechanism and used for preventing passengers from being extruded by the door mechanism when passing.
As a further improvement of the present invention; the specific ticket swiping information in the step (5) comprises the number of full-price tickets, half-price tickets and free tickets.
As a further improvement of the present invention; the content of the accurate judgment made by the pass logic in the step (5) comprises one or more of the following: whether the passenger normally passes, the relationship between the adult passenger and the luggage, the adult passenger carrying children below 1 m 3, the passenger passing through the gate without ticket, and the passenger trying to pass by the gate.
After the technical scheme is adopted, the invention has the following beneficial effects:
compared with the infrared correlation photoelectric sensor technology, the invention adopts the image processing technology, and has the advantages that: the passing logic judgment is accurate and reliable.
The image processing technology can accurately judge various special abnormal conditions, and is extremely effective under the condition that the relative positions of adults, children and objects are close or even overlapped, thereby solving the phenomenon that the machine is not friendly to people and reducing unnecessary ticket affairs problems and lots of disputes. In a word, the entrance guard gate adopts an image processing technology to replace the existing photoelectric sensor detection technology, and has very important significance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a correlation photoelectric sensor in the prior art;
FIG. 2 is a schematic block diagram of the components of a graphics processing gate system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a normal passenger passing through a gate according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an adult passenger carrying a child through a gate in accordance with an embodiment of the present invention;
fig. 5 is a schematic diagram of the embodiment of the invention, wherein the adult passengers carry luggage and pass through a gate in sequence.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 2 to 5, the following technical solutions are adopted in the present embodiment: the image processing method for the access gate passage logic control comprises the following steps:
a camera is arranged on the right machine of each channel of the entrance guard gate, and the camera is over against the face of the passenger. The mounting is shown in figure 3.
The video signal of the camera is sent to the computer, the application software built in the computer processes the image, and the door opening and closing signal is sent to the door mechanism according to the processing result. The system composition is shown in figure 2.
During the forward traveling process of the passenger in the gate passage, the application software built in the computer searches the facial features of the passenger in the video signal, the captured facial image is always locked, and the passenger is considered to pass through the gate after traveling to a certain position of the picture.
If the passenger carries luggage, the volume size is similar to the human body, because there is not facial feature, can not be mistaken as the passenger, promptly: the gate will not determine the baggage as a traveler. The gate can accurately calculate the number of people passing through the gate;
if the adult passenger enters the gate passage together with the child, the image processing technology can accurately judge the adult and the child according to the height, and the gate can accurately calculate the number of people passing through the gate, as shown in fig. 4;
if the passenger enters the gate passage and exits after passing through the blocking gate, the gate can accurately judge the behavior according to the image processing technology, and the behavior is taken as that the passenger does not pass through the gate, so that the logic is reasonable;
if a plurality of people queue in sequence to enter the gate passage, the image processing technology can simultaneously grasp the facial features of all passengers and accurately calculate the number of the passengers, as shown in fig. 5;
if a passenger tries to follow the previous passenger through the gate, the gate can judge the trailing phenomenon, and the voice prompts the passenger not to follow;
in order to prevent passengers from being bruised by the door mechanism, it is necessary to install a small number of photosensors near the door mechanism.
The invention has more accurate and reliable detection, the entrance guard gate adopts the image vision processing technology for the passing logic, and solves the problems of inaccurate counting of the photoelectric sensor, close following of two persons, distinguishing of large luggage and passengers, inaccurate counting of a plurality of passengers passing in a short distance, the problem of entering by using free tickets (old people, tourist guides, officers and the like) of other persons and the like.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. The image processing method for the access gate passage logic control is characterized by comprising the following steps of:
(1) shooting images in the channel by using a camera arranged on the gate, and sending the shot images to a computer;
(2) the method comprises the following steps that image processing software built in a computer is used for capturing facial features of passengers, so that people or objects are judged;
(3) the type, the position, the quantity and the moving direction of the moving target in the channel are correctly judged by utilizing an image processing technology;
(4) combining the protection sensor in the channel with image information from a camera, so that all human body, object and blind area information in the channel are mutually supplemented and mutually verified;
(5) the method comprises the steps of integrating specific ticket swiping information of a ticket card reader, virtually limiting an effective area in a gate channel, and accurately judging the traffic logic;
(6) the computer sends a door opening and closing signal to the door mechanism according to the processed result, thereby controlling the opening and closing state of the door mechanism.
2. The image processing method for gate entry traffic logic control of claim 1, wherein a plurality of photosensors are mounted in electrical communication with a computer in proximity to said gate mechanism.
3. The image processing method for gate entry traffic logic control of claim 1, wherein the specific ticket swiping information in step (5) comprises the number of full-price tickets, half-price tickets and free tickets.
4. The image processing method for gate entry logic control of claim 1, wherein the content of the accurate judgment made by the gate entry logic in step (5) comprises one or more of the following: whether the passenger normally passes, the relationship between the adult passenger and the luggage, the adult passenger carrying children below 1 m 3, the passenger passing through the gate without ticket, and the passenger trying to pass by the gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811017077.4A CN110874551A (en) | 2018-09-03 | 2018-09-03 | Image processing method for access control gate passage logic control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811017077.4A CN110874551A (en) | 2018-09-03 | 2018-09-03 | Image processing method for access control gate passage logic control |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111723770A (en) * | 2020-06-30 | 2020-09-29 | 四川兴事发门窗有限责任公司 | Anti-trailing gate system and method based on image recognition |
| CN112233289A (en) * | 2020-09-04 | 2021-01-15 | 常州方可为机械科技有限公司 | Intelligent driving system for gate |
| CN112288937A (en) * | 2020-11-18 | 2021-01-29 | 重庆赛丰基业科技有限公司 | Virtual gate and control method |
| CN112309018A (en) * | 2020-10-30 | 2021-02-02 | 北京市商汤科技开发有限公司 | Image display method and device, computer equipment and storage medium |
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| CN112288937A (en) * | 2020-11-18 | 2021-01-29 | 重庆赛丰基业科技有限公司 | Virtual gate and control method |
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Application publication date: 20200310 |