JP2008257375A - Automatic ticket examination device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic ticket examination device for accurately discriminating an adult from a child. <P>SOLUTION: A camera is provided beside a passage of the automatic ticket examination device, and a leg part of a user passing through the passage is imaged by the camera. A knee position is detected from an edge bent in an elbow shape in an imaged leg part image. When the detected knee position is a preset threshold value or more, the user is determined as an adult. When the detected knee position is less than the threshold value, the user is determined as a child. Passage of the user is controlled based on decision results thereof. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an automatic ticket gate apparatus installed in a railway station, and more particularly to a technique for determining whether a passenger passing through a ticket gate is an adult or a child.

  In the automatic ticket gate, when an adult and a child are discriminated, conventionally, as described in Patent Document 1 below, for example, a reflection type optical sensor is provided on the upper part of the apparatus body, and the light receiving state of the optical sensor is Based on this, it is determined whether the user is an adult or a child. In other words, when light is projected obliquely upward from the optical sensor, if the customer is an adult, the projected light is reflected by the customer and received by the optical sensor, but if the customer is a child, it is short. The projected light is not reflected by the sensor and is not received by the sensor. Therefore, it is possible to determine the adult / child of the user based on whether or not the light sensor receives light.

  As another discrimination method, a technique for photographing a customer with a camera attached to the ceiling and discriminating whether the customer is an adult or a child using the obtained image is disclosed in Patent Document 2 below. Yes. In this document, the height, which is the adult / child discrimination criterion, is set as a reference line (threshold) for the photographed image, and if the photographed customer's height is greater than the reference line, it is determined to be an adult. If the height of the user is less than the reference line, it is determined that the child is a child.

JP 2005-31841 A JP-A-7-14038

  In the method of Patent Document 1, even when the user is an adult, for example, when wearing black clothes, the amount of reflected light is insufficient, and no light is detected by the optical sensor, and the child is determined to be a child. There is. On the other hand, even if the customer is a child, for example, when the user has a balloon, the light is reflected by the balloon, and the light sensor detects the received light, so that the user is identified as an adult. There is. If there is such misidentification of adults / children, incorrect passage processing such as allowing passage for no-ticket customers who do not have a ticket or prohibiting passage for normal passengers. Will be done.

  Further, in the method of Patent Document 2, the height of the user on the image differs depending on the position of the user who passes through the automatic ticket gate (position in the direction of travel), and the height is high near the camera and far from the camera. However, since the height is low, there is a risk of misclassifying adults / children.

  The present invention solves the above-described problems, and an object of the present invention is to provide an automatic ticket gate that can accurately discriminate between adults and children.

  An automatic ticket gate according to the present invention includes an imaging unit that images a leg portion of a user passing through a ticket gate, a detection unit that detects a knee position from an image of a leg imaged by the imaging unit, and the detection unit includes: Based on the detected knee position, there is provided a discriminating means for discriminating whether the user is an adult or a child, and a control means for performing traffic control for the user according to the discrimination result of the discriminating means.

  In the present invention, the fact that the position of the knee is different between the adult and the child is used, and the adult / child discrimination is performed based on the knee position obtained from the leg image captured by the imaging means. It is possible to accurately discriminate between an adult and a child regardless of the color of the customer's clothes and the balloons held by the child. Further, since the height of the user is not used, there is no possibility of erroneous determination due to the fact that the height on the image differs depending on the position of the user.

  In preferable embodiment of this invention, an imaging means images a user's leg part from the side with respect to a traffic direction. In this way, the background of the captured image is only the ticket gate main body, and no extraneous items such as other users are shown, so that the knee position can be easily extracted from the image with high accuracy.

  Moreover, in preferable embodiment of this invention, a detection means detects a knee position from the edge bent in the character shape in the image imaged by the imaging means. If it does in this way, it will become possible to detect a knee position reliably by a bending edge.

  Moreover, in preferable embodiment of this invention, an imaging means consists of the 1st and 2nd imaging means arrange | positioned on both sides on both sides of a ticket gate passage, and images a user's leg part from both sides. In this way, even if the baggage is shown in the image captured by the imaging means on one side and the knee position cannot be detected, the knee position can be detected from the image captured by the imaging means on the other side without luggage. However, it is possible to reliably detect the knee position even when carrying a load in one hand.

  In a preferred embodiment of the present invention, a plurality of imaging means are arranged at a certain distance in the direction of travel. In this way, the legs can be imaged from different positions by a plurality of imaging means, and the distance to the target can be obtained by performing the parallax calculation based on these images. It can be detected separately.

  Further, in a preferred embodiment of the present invention, the imaging means comprises first and second imaging means arranged on both sides with the ticket gate passage therebetween, and these imaging means are respectively separated by a certain distance in the traffic direction. Are arranged. In this way, since the leg is imaged from both sides, the knee position can be reliably detected even when the user has a load in one hand, and the leg is imaged from a plurality of different positions. Therefore, the leg portion and the luggage can be distinguished and detected by obtaining the distance to the object.

  In a preferred embodiment of the present invention, the determination unit includes a plurality of edges in which the first image acquired by imaging of the first imaging unit includes a difference in distance from the imaging unit that is equal to or greater than a predetermined value. If it is, the adult / child discrimination is performed based on the second image acquired by the imaging of the second imaging means. In this way, if the customer has a baggage such as a bag and this is reflected in the first image, it is determined that the user has the baggage from the difference in distance to the edge, and the first Images are not adopted. Then, the second image without the baggage acquired by the second imager on the opposite side of the first imager is adopted, and the discrimination is performed based on the second image. Thus, erroneous detection of the knee position can be prevented.

  Further, in a preferred embodiment of the present invention, the discriminating means obtains an image acquired by the imaging means on the side having the boarding medium reading portion provided near the entrance of the ticket gate passage, out of the first and second imaging means. Adopt preferentially. When the passenger makes the automatic ticket gate read the boarding medium, the user has the boarding medium in the hand (generally the right hand) on the side where the boarding medium reading unit is located (generally the right hand) and the other hand (generally the left hand). Since it is normal to have a baggage, it is considered that there are few cases where the baggage is reflected in the image taken on the side where the boarding medium reading unit is located. Therefore, if this image is preferentially adopted, the knee is detected from the beginning in most cases, so that the efficiency of the knee detection process can be improved.

  Further, in a preferred embodiment of the present invention, the determining means includes an image acquired by imaging of the imaging means including a plurality of edges whose distance from the imaging means is less than a certain value, and the edge line includes When there are a plurality of inflection points, an intersection point estimated from two edges having the largest inclination is specified as a knee position, and adult / child discrimination is performed based on the knee position. When the knee is hidden by wearing the skirt, when the knee is bent, the front edge of the skirt substantially coincides with the edge of the leg above the knee, so the distance from the imaging means to both edges is approximately It will be the same. Since the slopes of the leg edge and the skirt edge are the largest, the knee position is erroneously determined based on the skirt edge by specifying the intersection point obtained from the estimation of these two edges as the knee position. It is possible to prevent detection.

  In the present invention, instead of performing the adult / child determination based on the knee position, the adult / child determination may be performed based on the presence or absence of the knee in the image. In this case, the automatic ticket gate detects the presence or absence of a knee from an image pickup means for picking up a leg of a user passing through the ticket gate and a leg image picked up by the image pickup means within a preset image pickup area. Detecting means for determining, based on a detection result in the detecting means, a determining means for determining whether the user is an adult or a child, and a control means for performing traffic control for the user according to the determination result of the determining means; Is provided. Even in this way, an adult and a child can be accurately discriminated based on the presence or absence of a knee.

  According to the present invention, it is possible to accurately determine whether the user is an adult or a child by detecting the position of the knee or the presence or absence of the knee.

  1 to 3 are views showing an automatic ticket gate according to an embodiment of the present invention. FIG. 1 is a perspective view, FIG. 2 is a front view, and FIG. 3 is a side view. In the figure, 50 is an automatic ticket gate device, 51 is a main body of the automatic ticket gate device 50, 52 is a gate door provided on the ticket gate side of the automatic ticket gate device 50, and 53 is a gate door provided on the ticket collection side of the automatic ticket gate device 50. , 54 is an antenna that communicates with a non-contact IC card (not shown) used in the automatic ticket gate device 50, and 55 indicates whether the non-contact IC card read by the antenna 54 is a normal boarding medium. A lamp display unit for displaying, 56 is a message display unit for displaying various messages such as passage permission and passage prohibition for passengers, 57 is a side plate provided on the side of the main body 51, and 58 is provided on the upper surface of the side plate 57. A child / student display lamp 59, a cover for covering a sensor (described later) provided in the side plate 57, a pass / fail indicator 60 provided in front of the main body 51, and a pair of automatic ticket gates 5 are provided. A ticket gate passage defined by.

  FIG. 3 is a side view of the right automatic ticket gate 50 in FIG. 1 with the cover 59 removed. Reference numeral 40 denotes a human position tracking sensor arranged in a straight line in the passing direction, and is composed of, for example, a transmission type optical sensor. In addition, the side plate 57 in the automatic ticket gate 50 on the left side of FIG. 1 is also provided with a plurality of transmission type optical sensors at positions facing each of the sensors 40 across the ticket gate passage 61. In each automatic ticket checker 50, the light projecting elements and the light receiving elements constituting the sensor are alternately arranged in the passing direction, and the light projecting element of one automatic ticket checker 50 and the other automatic ticket checker 50 are arranged. 50 light receiving elements face each other across the ticket gate 61.

  As shown in FIGS. 1 to 3, cameras 11 </ b> R and 12 </ b> R are arranged in the lower part near the entrance of the main body 51 of the automatic ticket gate 50 on the right side. As shown in FIG. 2, cameras 11L and 12L are also provided in the main body 51 of the automatic ticket gate 50 on the left side. FIG. 4 shows the imaging area of the camera, where (a) is a top view and (b) is a front view. P is the user and X is the direction of travel of the user P. The cameras 11R and 12R are arranged at a certain distance in the traffic direction X, and the cameras 11L and 12L are also arranged at the same distance in the traffic direction X. The camera 11R and the camera 11L are in a position facing each other, and the camera 12R and the camera 12L are in a position facing each other. Each camera has an imaging region as indicated by a dotted line, and images the leg G of the customer P from both sides of the ticket gate passage 61 as can be seen from FIG.

  The automatic ticket gate 50 as described above is installed in, for example, a railway station, and when a user holds the non-contact IC card over the antenna 54, the data of the non-contact IC card read by the antenna 54 is stored inside the main body 51. The control unit determines whether the boarding medium is appropriate and controls the opening and closing of the gate doors 52 and 53 to permit or prohibit the passage.

  FIG. 5 is a block diagram showing the electrical configuration of the automatic ticket gate 50. Reference numeral 1 denotes a CPU as a control unit for controlling the operation of the automatic ticket gate device 50, and 2 denotes a storage unit including a memory. The storage unit 2 has an area for storing traffic information read from the boarding medium, an area for storing an operation program for the CPU 1, an area for storing various control parameters, and the like. Reference numeral 3 denotes a door drive unit that drives the gate doors 52 and 53, and includes a door opening / closing motor, a motor drive circuit, and the like. Reference numeral 4 denotes a display unit which includes the lamp display unit 55, the message display unit 56, the child / student display lamp 58, and the pass / fail display unit 60 shown in FIG. Reference numeral 5 denotes a host communication unit that performs communication with a host device (not shown) that is a host device, and reference numeral 6 denotes a power supply unit that supplies power to each unit of the automatic ticket gate device 50.

  Reference numeral 7 denotes an imaging unit, which includes the cameras 11R, 12R, 11L, and 12L. An image processing unit 8 processes an image captured by each camera, and performs processing such as knee position detection described later. Reference numeral 9 denotes a human detection unit, which includes the sensor 40 shown in FIG. Reference numeral 10 denotes an antenna control unit that controls the operation of the antenna 54. The antenna 54 performs wireless communication with the non-contact medium 70 formed of a non-contact IC card, and the traffic information recorded on the non-contact medium 70 is obtained. Read without contact.

  In the above, the CPU 1 constitutes an embodiment of the discrimination means and the control means in the present invention, the cameras 11R, 12R, 11L, and 12L constitute an embodiment of the imaging means in the present invention, and the image processing unit 8 is the present invention. And the antenna 54 constitutes an embodiment of the boarding medium reading unit according to the present invention.

  Next, the principle of adult / child discrimination according to the present invention will be described. The present invention utilizes the fact that the position of the knee differs between adults and children. In the case of an adult, as shown in FIG. 6 (a), the height h1 of the knee N in the leg G is high, and in the case of a child, the knee N in the leg G is shown in FIG. 6 (b). The height h2 is low. Therefore, a knee position is detected from an image obtained by imaging with a camera, and if the knee height is equal to or higher than a preset threshold value, it can be determined as an adult, and if not higher than the threshold value, it can be determined as a child.

  In detecting the knee position, for example, in the image of the leg G shown in FIG. 7, the distance (arrow) from the reference position to the front edge of the leg G is calculated for each scan, and the inflection point at which the distance becomes maximum, That is, the bending point of the U-shaped edge is the position of the knee N. The edge of the leg G can be detected using a known difference extraction method. In addition, it can image | photograph reliably the state bent in the shape of a knee-knee by imaging with one camera several times with respect to one customer.

  In this way, when adult / child discrimination is performed based on the knee position, even if the color of the clothes of the user is dark or the child has balloons, the adult and child are not affected by them. Can be accurately determined. Further, since the height of the user is not used for the determination of the adult / child, there is no possibility of erroneous determination depending on the position of the user as in Patent Document 2.

  The above is the basic principle of adult / child discrimination based on the knee position. If the image picked up by the camera is only the leg, only one camera may be used as the image pickup means in accordance with the above principle. However, actually, as shown in FIG. 8, the customer P often carries the luggage B, and it is necessary to devise a technique for detecting the knee position in consideration of this case. For this reason, in the present embodiment, cameras 11R and 12R as first imaging means and cameras 11L and 12L as second imaging means are arranged on both sides of the ticket gate passage 61 so that the legs of the user The image is taken from both sides.

  In the case where the baggage B possessed by the user P in FIG. 8 is a bag, on the camera 11R, 12R side without the bag B, an image of the leg G as shown in FIG. On the camera 11L, 12L side, images of the leg G and the bag B as shown in FIG. 9B are acquired. Here, in the image of FIG. 9B, the edge α of the leg G and the edge β of the bag B are connected, and the edge N may be erroneously determined as the leg, and the knee N may not be detected. . The situation is the same when the bag B is on the camera 11R, 12R side.

  Therefore, in the present embodiment, by performing known stereo image processing on each image captured by the cameras 11R and 12R and each image captured by the cameras 11L and 12L, FIG. ) As a distance image. Stereo image processing is a technique for obtaining an image in which the distance to a target is visualized by light and dark based on two images obtained by imaging the target from two different positions with two cameras. This image is called a distance image. According to this, since the difference in distance to the edge in FIG. 9B can be determined, if the distance to the edge α and the distance to the edge β are greatly different, the edge β is the edge of the leg G. Instead, the edge of the bag B is determined. Then, the image of FIG. 9A is employed without employing the image of FIG. 9B, and the position of the knee N is detected based on the above-described principle. As a result, erroneous detection of the knee position due to the edge β of the bag B can be prevented, and the knee position can be accurately detected.

  In this case, a distance image based on each image captured by the cameras 11R and 12R may be preferentially adopted. When the passenger causes the automatic ticket gate 50 to read the boarding medium (here, the non-contact medium 70), the user holds the boarding medium with the hand (right hand) with the antenna 54 in FIG. 1 and the hand with the opposite side (left hand). Therefore, it is considered that there are few cases where the baggage is shown in the images taken by the cameras 11R and 12R on the antenna 54 side. Therefore, if the images captured by the cameras 11R and 12R are preferentially employed, in most cases, the knee is detected from the beginning, so that the efficiency of the knee detection process can be improved.

  By the way, the erroneous detection of the knee position due to the edge is not limited to the case where the user carries the luggage, but also when the knee is hidden by wearing the skirt. In this case, for example, leg images as shown in FIG. 10 are acquired on the cameras 11R and 12R side. In FIG. 10, since the knee N is hidden by the skirt K, the knee N cannot be detected from the edge γ of the leg G. However, in the state where the knee is bent, as shown in the figure, the front edge δ of the skirt K substantially coincides with the edge of the portion above the knee of the leg G, so that the distance image obtained by the stereo image processing described above is used. , The distance to the edge γ and the distance to the edge δ are substantially the same. Therefore, in this case, the edge δ is regarded as the edge of the skirt K, and the point where the edge γ is extended and intersected with the edge δ, that is, the intersection obtained by estimation from each edge γ, δ is specified as the position of the knee N. Thereby, erroneous detection of the knee position due to the edge δ of the skirt K can be prevented, and the knee position can be detected accurately.

  FIG. 11 is a flowchart showing the procedure of the ticket gate process of the automatic ticket gate device 50. First, in step S1, a ticket acceptance process is performed, and the ticket information recorded on the non-contact medium 70 held over the antenna 54 is read. Next, in step S2, the validity of the read ticket information is determined, and the next step S3 waits for the user to enter the ticket gate passage 61. When the user enters the ticket gate 61, adult / child discrimination processing is performed in step S4. Details of step S4 will be described later.

  As a result of the determination in step S4, if the customer is an adult (step S5: YES) and the boarding ticket is a valid ticket (step S6: YES), the correct ticket counter is incremented by 1 in step S7. The initial value of the correct ticket counter is 0, and if the ticket is determined to be valid, the value of the correct ticket counter becomes +1. A state where the correct ticket counter is +1 means that one passenger is allowed to pass. The correct ticket counter is provided in a predetermined area of the storage unit 2 (FIG. 5). On the other hand, if the customer is not an adult (step S5: NO), the process proceeds to step S17, and the gate door 53 is kept open. If the boarding ticket is not a valid ticket (step S6: NO), step S7 is omitted and the process proceeds to step S8.

  Next, it is checked in step S8 whether or not the customer has returned to the ticket gate 61. If the customer has returned (step S8: YES), the ticket counter is reset by -1 in step S9, and the process returns to step S1. . If the ticket passage 61 has not been returned (step S8: NO), it waits for the passenger to pass through the no-ticket line (shown by a one-dot chain line in FIG. 3) in step S10, and the correct ticket in step S11. Determine if there is any remaining in the counter.

  As a result of the determination, if there is a remaining in the correct ticket counter (step S11: YES), the gate door 53 is kept open in step S12, and the user waits for the user to exit the gate door 53 in step S14. Meanwhile, in step S16, it is checked whether or not the ticket gate passage 61 is returned. If there is a return (step S16: YES), the process proceeds to step S9. When the user exits the gate door 53 (step S14: YES), the ticket counter is reset by -1 in step S15, and the process returns to the beginning. On the other hand, if there is no remaining ticket counter in step S11 (step S11: NO), the gate door 53 is closed in step S13 to prohibit passage.

  FIG. 12 is a flowchart showing details of the adult / child discrimination process in step S4 of FIG. In step S21, the legs of the customer are imaged by the cameras 11R, 12R, 11L, and 12L. In a succeeding step S22, a process of detecting a knee position (a knee height) from the captured image is performed. Details of this processing will be described later. Next, in step S23, the knee position detected in step S22 is compared with a threshold value to determine whether the knee position is equal to or greater than the threshold value. As a result of the determination, if the knee position is equal to or greater than the threshold (step S23: YES), it is determined as an adult in step S24, and if the knee position is not equal to or greater than the threshold (step S23: NO), it is determined as a child in step S25.

  FIG. 13 is a flowchart showing details of the knee position detection process in step S22 of FIG. In step S31, an edge is extracted from an image (right camera image) acquired based on the images taken by the cameras 11R and 12R. In the next step S32, it is determined whether or not the variation in the distance to the extracted edge is less than the threshold value. If it is less than the threshold value (step S32: YES), the process proceeds to step S34. : NO), in step S33, after extracting an edge from the image (left camera image) acquired based on the imaging by the cameras 11L and 12L, the process proceeds to step S34.

  In step S34, it is determined whether there is an inflection point in the extracted edge line. If there is no inflection point in the edge line (step S34: NO), the process returns to step S21 in FIG. 12, and if there is an inflection point in the edge line (step S34: YES), the process proceeds to step S35, where the edge line It is determined whether or not there are two or more inflection points. When there is one inflection point as shown in FIG. 9A (step S35: NO), the process proceeds to step S36, and the inflection point is specified as the position of the knee N. On the other hand, when there are a plurality of inflection points in the edge line as shown in FIG. 10 (step S35: YES), the process moves to step S37, and the intersection of the two edge lines (γ, δ) having the largest inclination is set to the knee N. Identify with location.

  In the above-described embodiment, the user's leg G is imaged from the side with respect to the traffic direction X, so the background of the captured image is only the ticket gate apparatus body, and no extraneous items such as other users are captured. Therefore, the knee position can be easily and accurately extracted from the image. In this case, since the knee position is detected from the edge bent in a dogleg shape in the captured image, the knee position can be reliably detected by the bent edge.

  In the above-described embodiment, since the leg portion G of the customer P is imaged from both sides of the ticket gate passage, even when the luggage B is reflected in the image captured by the camera on one side and the knee position cannot be detected, The knee position can be detected from an image captured by the camera on the other side without the luggage B. For this reason, even if the user P has the luggage B in one hand, the position of the knee N can be reliably detected.

  In the embodiment described above, the position of the knee is detected, and the height of the knee is compared with the threshold value to determine the adult / child, but instead, based on the presence or absence of the knee in the image. Adult / child discrimination may be performed. In this case, as shown in FIG. 14, the legs of the customer are imaged in the range of the imaging area Z set in advance. In the case of an adult, as shown in FIG. 14 (a), the knee N is not detected from the image because the knee N is outside the imaging region Z, but in the case of a child, as shown in FIG. 14 (b), Since the knee N is in the imaging region Z, the knee N is detected from the image. Therefore, it is possible to determine an adult / child based on the detection result of the presence / absence of a knee.

  FIG. 15 is a flowchart showing the adult / child discrimination process in this case. In step S41, the legs of the customer are imaged in the above-described imaging area Z by the cameras 11R, 12R, 11L, and 12L. In a succeeding step S42, processing for detecting a knee from the captured image is performed. Next, in step S43, it is determined whether or not a knee is detected. If a knee is detected (step S43: YES), it is determined in step S44 that the child is not detected. If a knee is not detected (step S43: NO). In step S45, it is determined that the person is an adult.

  In the present invention, various embodiments other than those described above can be adopted. For example, a transparent or translucent plastic plate may be provided as a protective cover on the front surfaces of the cameras 11R and 12R and the cameras 11L and 12L. Each camera may be a normal camera or an infrared camera. Furthermore, in the above-described embodiment, an example in which two cameras are provided on both sides of the ticket gate passage 61 has been described, but three or more cameras may be provided.

  In the above embodiment, a non-contact type automatic ticket gate using a non-contact IC card as a boarding medium is taken as an example. However, the present invention relates to a contact type automatic ticket gate using a magnetic card, a magnetic card, The present invention can also be applied to a hybrid automatic ticket gate that can use both contactless IC cards.

It is a perspective view of the automatic ticket gate apparatus concerning the embodiment of the present invention. It is a front view of the automatic ticket gate. It is a side view of the automatic ticket gate. It is the figure which showed the imaging area of the camera. It is the block diagram which showed the electrical structure of the automatic ticket gate apparatus. It is a figure explaining the principle of the adult / child discrimination | determination by this invention. It is a figure explaining the detection principle of a knee position It is the figure which showed the case where a user has luggage. It is the figure which showed the leg part image acquired by the imaging of a camera. It is the figure which showed the leg part image acquired by the imaging of a camera. It is the flowchart which showed the procedure of the ticket gate process of an automatic ticket gate apparatus. It is the flowchart which showed the detail of the adult / child discrimination | determination process. It is the flowchart which showed the detail of the knee position detection process. It is a figure explaining the principle of the adult / child discrimination | determination by other embodiment. 6 is a flowchart illustrating an adult / child discrimination process according to another embodiment.

Explanation of symbols

1 CPU
7 Imaging unit 8 Image processing unit 11R, 12R, 11L, 12L Camera 50 Automatic ticket gate 54 Antenna 61 Ticket gate P User G G leg N Knee Z Imaging area

Claims (10)

Imaging means for imaging the legs of the passengers passing through the ticket gate;
Detecting means for detecting a knee position from an image of a leg imaged by the imaging means;
Based on the knee position detected by the detection means, a determination means for determining whether the customer is an adult or a child,
Control means for performing traffic control for the user according to the determination result of the determination means;
An automatic ticket gate characterized by comprising: In the automatic ticket gate apparatus according to claim 1,
The automatic ticket gate device, wherein the imaging means images the leg of the customer from the side with respect to the direction of traffic. In the automatic ticket gate according to claim 2,
The automatic ticket gate apparatus, wherein the detecting means detects a knee position from an edge bent in a dogleg shape in an image taken by the imaging means. In the automatic ticket gate according to claim 2 or claim 3,
2. The automatic ticket gate apparatus according to claim 1, wherein the image pickup unit includes first and second image pickup units arranged on both sides of the ticket gate passage, and picks up the legs of the customer from both sides. In the automatic ticket gate according to claim 2 or claim 3,
An automatic ticket gate apparatus, wherein a plurality of the imaging means are arranged at a predetermined distance in the direction of travel. In the automatic ticket gate according to claim 2 or claim 3,
The imaging means comprises first and second imaging means disposed on both sides across the ticket gate passage,
An automatic ticket gate device, wherein a plurality of the first and second imaging means are arranged at a predetermined distance in the direction of travel. In the automatic ticket gate apparatus according to claim 6,
When the first image acquired by the imaging of the first imaging unit includes a plurality of edges whose difference in distance from the imaging unit is equal to or greater than a certain value, the determination unit performs the second imaging. An automatic ticket gate apparatus for performing adult / child discrimination based on a second image acquired by imaging of the means. In the automatic ticket gate device according to claim 4,
The discriminating means preferentially adopts an image acquired by the imaging means on the side having the boarding medium reading portion provided near the entrance of the ticket gate passage among the first and second imaging means. Automatic ticket gate device. In the automatic ticket gate according to claim 5,
In the case where the image obtained by imaging by the imaging unit includes a plurality of edges whose difference in distance from the imaging unit is less than a certain value, and the edge line has a plurality of inflection points. In addition, an automatic ticket gate is characterized in that an intersection estimated from two edges having the greatest inclination is identified as a knee position, and adult / child discrimination is performed based on the knee position. Imaging means for imaging the legs of the passengers passing through the ticket gate passage within a preset imaging area;
Detecting means for detecting the presence or absence of a knee from an image of a leg imaged by the imaging means;
Discrimination means for discriminating whether the customer is an adult or a child based on the detection result in the detection means;
Control means for performing traffic control for the user according to the determination result of the determination means;
An automatic ticket gate characterized by comprising:

Images