WO2023277165A1 - カメラ、及びシステム - Google Patents
カメラ、及びシステム Download PDFInfo
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- WO2023277165A1 WO2023277165A1 PCT/JP2022/026397 JP2022026397W WO2023277165A1 WO 2023277165 A1 WO2023277165 A1 WO 2023277165A1 JP 2022026397 W JP2022026397 W JP 2022026397W WO 2023277165 A1 WO2023277165 A1 WO 2023277165A1
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- image
- camera
- detection area
- person
- detection
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- 238000001514 detection method Methods 0.000 claims abstract description 96
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000003384 imaging method Methods 0.000 claims description 57
- 238000012544 monitoring process Methods 0.000 description 55
- 238000000034 method Methods 0.000 description 49
- 238000012545 processing Methods 0.000 description 18
- 238000012986 modification Methods 0.000 description 15
- 230000004048 modification Effects 0.000 description 15
- 230000006870 function Effects 0.000 description 13
- 238000004891 communication Methods 0.000 description 6
- 238000012790 confirmation Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000037237 body shape Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010801 machine learning Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
Definitions
- the present invention relates to a camera and a system provided with the camera.
- the surveillance system described in Patent Literature 1 includes multiple surveillance cameras and a central server having an image recognition section.
- the image recognition unit analyzes the images acquired from each surveillance camera and detects the number of people present in the area where the surveillance camera is installed.
- a monitoring system that does not have a server and is configured with a plurality of monitoring cameras is also known.
- a plurality of surveillance cameras capture an area assigned to each and generate an image of the area.
- the surveillance camera then extracts an object in the captured image and tracks the extracted object.
- JP 2011-134004 A Japanese Patent No. 5686435
- the image recognition unit of the server analyzes the images of each surveillance camera, so the processing load on the server increases as the number of installed surveillance cameras increases.
- the system of Patent Document 2 performs object detection processing in each surveillance camera, so the processing load does not increase as the number of installed surveillance cameras increases.
- each surveillance camera of Patent Document 2 always needs to perform detection processing on the entire area of the image that is captured and generated.
- An object of the present invention is to provide a camera and system that can detect an object in any part of an image that is captured and generated.
- the system of the present invention comprises a camera and a terminal capable of communicating with the camera, wherein the terminal defines a detection area in which an object should be detected in an image acquired from the camera.
- a designation unit that designates a camera wherein the camera includes a detection unit that detects an object within the detection area in the generated image, and a transmission that transmits a notification indicating that the object has been detected to another device. and a part.
- the other device is characterized by operating based on the notification received from the camera.
- the camera is characterized by not sending the notification when a condition other than the detection of the object is met.
- the camera of the present invention comprises an imaging unit that generates an image, and a setting unit that sets a detection area in which an object should be detected in the generated image by a communicable terminal. , a detection unit that detects an object within the detection area in the generated image; and a transmission unit that transmits a notification indicating that the object has been detected to another device.
- an object can be detected in any part of an image generated by imaging.
- the alarm system 100 is a system that issues an alarm when an object such as a person or an object exists in a specific area.
- E1a an object such as a person or an object exists in a specific area.
- FIG. 3 The alarm system 100 includes a surveillance camera 110 (camera) that monitors the restricted area E1a, an information terminal 120 (terminal) (FIG. 3) that sets the restricted area E1a, and an alarm device 130 (another device) that generates an alarm. ), and the alarm device 130 and the information terminal 120 are configured to be able to communicate with the surveillance camera 110 via a network.
- the surveillance camera 110 is a camera that detects the existence of an object in an area E1 where an object should be detected (hereinafter referred to as "detection area E1").
- the monitoring camera 110 of this embodiment is a fixed-point camera having the restricted area E1a as the detection area E1, and captures an image of the imaging area E2 including the restricted area E1a so as to detect the presence of the person P in the restricted area E1a. It is installed on the ceiling etc. in the vicinity where it can be done.
- the surveillance camera 110 includes an image sensor 111 that functions as an imaging unit 11 (FIG. 3) that captures an imaging area E2 including the detection area E1.
- the image sensor 111 captures an image of the imaging area E2 and generates an image of the imaging area E2 (hereinafter referred to as an “imaging area image”).
- the imaging area image generated by the image sensor 111 is input to the CPU 112 provided in the surveillance camera 110 .
- the CPU 112 of the surveillance camera 110 controls the image sensor 111 by executing programs stored in the memory 113 .
- the CPU 112 cooperates with the information terminal 120 and functions as the setting unit 12 that sets the detection area E1 based on the imaging area image acquired from the image sensor 111 . Further, the CPU 112 functions as the detection unit 13 that analyzes the acquired imaging area image every time it acquires the imaging area image from the image sensor 111 and detects the person P within the detection area E1.
- a network module 114 is also connected to the CPU 112 .
- the network module 114 of the surveillance camera 110 functions as a transmitting section that transmits the imaging area image to the information terminal 120 and a receiving section that receives information regarding the detection area E1 from the information terminal 120. Furthermore, the network module 114 also functions as a transmitter that transmits a notification to the alarm device 130 when the person P is detected within the detection area E1.
- the transmitting section and the receiving section are collectively referred to as a communication section 14 .
- the board on which electronic components such as the CPU 112, memory 113, and network module 114 are mounted is housed in the main body 110a of the surveillance camera 110, as shown in FIG.
- the main body 110a is installed via a support arm 110b.
- An imaging unit 110c containing the image sensor 111 is provided on the front side of the main body 110a.
- the imaging unit 110 c includes a lens that forms an image of the imaging area E 2 on the light receiving surface of the image sensor 111 .
- the information terminal 120 is a known notebook-type or desktop-type personal computer, and as shown in FIG.
- a network module functioning as a communication unit 24, a display (not shown) functioning as a display unit 21 for displaying an image received from the monitoring camera 110, and executing a program stored in a memory enables reception
- a CPU (not shown) that functions as a designation unit 22 that designates the detection area E1 based on the captured area image, and a mouse (not shown) that functions as a coordinate input unit (not shown) for inputting coordinates. ing.
- the alarm device 130 is a device that alerts a person P who has entered the restricted area E1a by emitting a red light beam or the like. It is installed in a position that is easy to see.
- the alarm 130 includes a red light source 131 (light source 31 in FIG. 3), a network module 134 functioning as a receiver 34 for receiving notifications from the monitoring camera 110, and a memory 133.
- a CPU 132 that functions as a control unit 32 that controls the light source 131 according to a notification received from the surveillance camera 110 via the network module 134 by executing a program stored in the control unit 132 .
- FIG. 1 The flow of the alarm system 100 according to this embodiment will be described below with reference to FIGS. 4 to 6.
- FIG. The alarm system 100 first sets a detection area E1 in the imaging area E2, and issues an alarm by monitoring the set detection area E1.
- the setting process s10 is a process for setting the detection area E1, and includes an imaging process s11, a transmission process s12, and a registration process s13, as shown in FIG.
- the image capturing process s11 is a process of capturing an image of the image capturing area E2. Generate an image.
- the generated imaging area image is input to the CPU 112 .
- the transmission process s12 is a process of transmitting the imaging area image to the information terminal 120, and the CPU 112 of the surveillance camera 110 controls the network module 114 to transmit the image input from the image sensor 111 to the information terminal 120. do.
- the information terminal 120 executes a reception process s21, a display process s22, and a designation process s23.
- the receiving process s21 is a process of receiving the imaging area image from the surveillance camera 110, and the CPU of the information terminal 120 receives the imaging area image via the network module.
- the display processing s22 is processing in which the CPU of the information terminal 120 displays the imaging area image on the display.
- the designation process s23 is a process of designating the detection area E1 in which the object should be detected in the photographing area image for the surveillance camera 110.
- the detection area E1 in the imaging area image is specified, for example, by the operator operating the mouse in the imaging area image displayed on the display.
- the CPU of the information terminal 120 acquires click information of the mouse operated by the operator. When it is determined that the mouse has been clicked based on the acquired click information, the coordinate values of the mouse at that time are acquired. In this way, the CPU of the information terminal 120 acquires coordinate values each time the mouse is clicked. At least three coordinate values are acquired in this embodiment. Then, the CPU of the information terminal 120 converts the obtained multiple coordinate values into coordinate values in the imaging area image, and transmits the multiple coordinate values to the monitoring camera 110 as information regarding the detection area E1.
- the registration process s13 is a process of registering coordinate values, which are information about the detection area E1. Memorize.
- the surveillance camera 110 executes the confirmation process s30 after executing the setting process s10.
- the confirmation process s30 is a process for confirming which of the setting process s40 and the monitoring process s50 is to be performed.
- the CPU 112 of the monitoring camera 110 receives a setting request from the information terminal 120 (there is a request)
- the CPU 112 of the monitoring camera 110 executes the setting process s40 similar to the setting process s10 described above to set the detection area E1 in the imaging area image. is set (updated).
- the monitoring process s50 is executed at a predetermined frame rate.
- the monitoring process s50 is a process for monitoring the presence of the person P in the detection area E1, and as shown in FIG. Including s54.
- the detection processing s52 is processing for detecting an object within the detection area E1 in the imaging area image generated by the imaging processing s51.
- an image of the detection area E1 (hereinafter referred to as a "detection area image") is extracted from the imaging area image, and the person P is detected in the extracted detection area image.
- the detection area image is extracted based on the information regarding the detection area set in the setting processes s10 and s40.
- a polygon whose vertices are the plurality of coordinate values stored in the memory 113 is partitioned in the coordinate system of the imaging area image, and the image included in the polygon is extracted as the detection area image.
- the detection of the person P in the detection area image for example, an image pattern including the characteristics of the person P is determined in advance, and if the detection area image includes an image pattern that matches or approximates the image pattern, the person P is detected. can be determined to have been detected.
- machine learning is performed in advance using the image of the person P as training data to generate a learned model, and the detection area image extracted in the extraction process is input to the learned model to determine the presence or absence of the person P. I don't mind if you let me.
- the monitoring process s50 is ended and the confirmation process s30 (FIG. 4) is executed.
- the surveillance camera 110 executes the notification process s54.
- the notification process s54 is a process for notifying that the person P exists in the detection area E1. Then, the CPU 112 of the surveillance camera 110 ends the surveillance process and executes the confirmation process s30 (FIG. 4).
- the CPU 132 of the alarm device 130 When the CPU 132 of the alarm device 130 receives the alarm command via the network module 134, it causes the red light source 131 to emit light.
- the information terminal 120 designates a person in the detection area E1, which is an arbitrarily determined partial area instead of the entire imaging area E2 captured by the surveillance camera 110. Detection of P can be performed.
- the CPU 112 of the monitoring camera 110 executes the object detection processing s52, but the monitoring camera 110 may include a GPU, and the GPU may execute the object detection processing s52. That is, the GPU may function as the detection unit 13 .
- the image sensor 111 included in the monitoring camera 110 of the above embodiment may be a ToF camera sensor.
- the ToF camera sensor is typically a ToF distance image sensor that irradiates the imaging area E2 with light and detects distance information for each pixel.
- the presence or absence of an object within the detection area E1 may be detected using such a ToF camera.
- the presence of the person P in the detection area E1 may be detected by recognizing the body shape and motion of the person P based on the distance information for each pixel.
- one detection area E1 is set within the imaging area image, but a plurality of detection areas E1 may be set within the imaging area E2.
- a plurality of coordinate values (a group of coordinate values) defining one detection area E1 are transmitted to the monitoring camera 110 each time the specifying process s23 of the information terminal 120 is executed a plurality of times.
- surveillance camera 110 registers the received group of coordinate values in memory 113 as information defining one detection area E1.
- a plurality of detection area images partitioned for each coordinate value group are extracted, and the presence of the person P is detected for each of the extracted detection area images.
- a plurality of monitoring cameras 110 may be provided in the above embodiment.
- each surveillance camera 110 is identified by an IP address
- information terminal 120 accesses surveillance camera 110 based on the IP address
- the detection area between surveillance camera 110 and information terminal 120 is different. E1 is set.
- a plurality of alarm devices 130 provided in the above embodiment may be provided.
- each of the alarms 130 would be identified by an IP address, and the surveillance camera 110 would send notifications to the alarms 130 based on the IP address.
- the information terminal 120 and the alarm device 130 communicate with the surveillance camera 110 via a network.
- a Bluetooth module or an IrDA module may be used as the communication units 14 and 24 and the reception unit 34 .
- wired communication such as USB may be used.
- USB modules may be used as the communication units 14 and 24 and the reception unit 34 .
- a personal computer is used as an information terminal, but a mobile information terminal such as a smart phone or a tablet terminal may be used.
- the liquid crystal display of the portable information terminal functions as the display section 21 that displays the imaging area image by executing the display processing s22.
- the touch panel of the portable information terminal functions as a coordinate input unit (not shown) for specifying the detection area by executing the specifying process s23.
- the terminal is not limited to the above information terminal and portable information terminal, and may be a dedicated terminal provided with a designation unit for designating a detection area for surveillance camera 110 .
- the monitoring camera 110 sends a notification to the alarm device 130 when the person P is detected within the detection area E1. You may control whether or not notifications are sent. For example, when the person P is detected, the image of the person P is analyzed. As a result of the analysis, if the name tag is not detected, a notification (alert command) is sent to the alarm device 130 . On the other hand, if the name tag is detected as a result of the analysis, the character string displayed on the name tag is recognized.
- the recognized character string (name) does not match the character string (name) registered in the memory or the like, a notification (alarm command) is sent to the alarm device 130, and the recognized character string (name) is If the character string (name) matches a pre-registered character string (name), it is determined that the person P is authorized to enter, and no notification is sent to the alarm device 130 .
- the face of the person P may be analyzed and the person P may be identified based on the feature amount of the face. By determining whether or not the identified person P is an entry permitter, the presence or absence of notification is controlled.
- the red light source 131 is used as the alarm device 130 in the above embodiment, a speaker may be used as the alarm device 130 .
- the CPU 120 of the alarm device 130 can generate a warning sound or voice from the speaker to call attention to the person P when receiving the notification from the monitoring camera 110 .
- both the red light source 131 and the speaker may be used.
- the alarm device 130 that can communicate with the monitoring camera 110 is used, but a display device that can communicate with the monitoring camera 110 may be provided.
- the display device includes a network module functioning as a receiving unit, a liquid crystal display functioning as a display unit, and a CPU functioning as a control unit for displaying an image calling attention on the liquid crystal display based on a notification received from the monitoring camera 110. and has.
- the alarm system of the above-described embodiment may include an RFID reader provided so as to communicate with surveillance camera 110 .
- the RFID reader for example, is provided near the restricted area E1a and reads an RF tag given to a person P who is permitted to enter the restricted area E1a.
- the RF tag stores an ID for identifying the person P who is permitted to enter.
- the RFID reader reads the ID from the RF tag possessed by the person P
- the RFID reader transmits the read ID to the surveillance camera 110 .
- the surveillance camera 110 receives the ID from the RFID reader, it compares the received ID with an access permission ID pre-registered in a memory or the like, and if the IDs match, a notification is sent to the alarm device 130 in notification processing s54. do not.
- the reader is not limited to the RFID reader, and may be a reader that reads ID-encoded barcodes or QR codes (registered trademark).
- the system of the above embodiment may include a fingerprint authentication device provided so as to be able to communicate with the surveillance camera 110 .
- the fingerprint authentication device is provided, for example, near the off-limits area E1a.
- the fingerprint authentication device has a memory in which the feature amount of the fingerprint of the person P who is permitted to enter is stored in advance, a fingerprint sensor that detects the feature amount of the fingerprint of the person P, and the detected feature amount of the fingerprint is stored in the memory. and a CPU for determining whether or not entry is permitted by comparing with the obtained feature amount.
- the CPU transmits the determination result to the monitoring camera 110 via the network module.
- the monitoring camera 110 receives the determination result from the fingerprint authentication device, and does not transmit the notification to the alarm device 130 in the notification processing s54 when the determination result indicates that entry is permitted. On the other hand, if the determination result is no access permission, a notification is sent to the alarm device 130 in notification processing s54.
- a fingerprint authentication device that authenticates a person's fingerprint is used in Modification 12 above, it is not limited to a fingerprint authentication device, and may be a vein authentication device or an iris authentication device. That is, a sensor for detecting the feature quantity of a person's body, a memory in which the feature quantity of the body of a person who is permitted to enter is stored in advance, and a comparison of the detected feature quantity with the feature quantity stored in the memory. , and a CPU for determining whether or not entry is permitted.
- the alarm system 100 can be used, for example, as a system that issues an alarm when a person P enters a restricted area of a truck yard.
- the truck yard is provided with a truck movement area where trucks enter and stop after retreating, and a work stage where cargo is carried out from and loaded into the stopped truck.
- the work stage includes a stage that is elevated with respect to the ground in the truck travel area to facilitate worker access to the truck bed.
- the monitoring camera 110 of the alarm system 100 is installed on the ceiling above the truck movement area, captures an area including the work stage as an imaging area, and generates an imaging area image.
- the information terminal 120 designates the work stage in the imaging area image received from the monitoring camera 110 as the detection area.
- the monitoring camera 110 extracts a detection area image (image on the work stage) and detects the presence of the person P in the extracted detection area image.
- An alarm device 130 is installed on the work stage of the truck yard.
- the alarm device 130 When a person P is detected on the work stage by the surveillance camera 110, the alarm device 130 having received the notification causes the red light source 131 to emit light to detect the person. Alert P. Since a warning can be issued to the person P who has entered the work stage in this manner, it is possible to prevent the person P from falling off the work stage.
- the transmission of the notification to the alarm device 130 may be interrupted when a condition other than the detection of the person P is satisfied.
- a symbol such as a one-dimensional code or a two-dimensional code is arranged at a position hidden (not included in the imaging area image) by a truck entering the truck movement area.
- Such a symbol is imaged by the image sensor 111 of the surveillance camera 110 when the truck is not stopped in the truck yard, and the symbol is included in the imaging area image.
- the CPU 112 of the monitoring camera 110 acquires the imaging area image from the image sensor 111, it can determine that the truck is not stopped in the truck yard by detecting the symbols in the image. can.
- the monitoring camera 110 detects the existence of the person P in the detection area (on the work stage) in the state determined in this way, a notification is sent to the alarm device 130 to cause the alarm device 130 to generate an alarm.
- the imaging area image generated by the image sensor 111 of the surveillance camera 110 does not include the symbol.
- the CPU 112 of the monitoring camera 110 detects no symbol in the imaging area image obtained from the image sensor 111, so it determines that the cargo is being loaded and unloaded from the stopped truck.
- the monitoring process s50 is terminated without executing the detection process s52. That is, no notification is sent to the alarm device 130 while the truck is stopped.
- the symbols are preferably provided within the detection area.
- the alarm system 100 of the first embodiment can be used, for example, as a system that issues an alarm when a person P enters a braille block on a station platform.
- the monitoring camera 110 of the alarm system 100 is installed on the ceiling of the home, captures an image of the entire home as an imaging area, and generates an imaging area image.
- the information terminal 120 designates the part inside the braille block in the imaging area image received from the monitoring camera 110 as the detection area. Then, in the monitoring process s50, the monitoring camera 110 extracts the detection area image (the image inside the braille block) and detects the existence of the person P in the extracted detection area image. Then, when the person P is detected in the detection area image, the CPU 112 of the monitoring camera 110 transmits a notification to the alarm device 130 to generate an alarm.
- the train detection process is executed prior to the person detection process s52.
- the train detection process is a process of detecting a train in the imaging area image, and if an image pattern that matches or resembles a predetermined feature of the train exists in the imaging area image, the train is detected. becomes. In this case, passengers get on and off the train stopped at the platform, so the monitoring process s50 ends without executing the person detection process s52.
- the alarm system 100 of the first embodiment can be used, for example, in a hospital as a system that issues an alarm when an inpatient enters a doorway during a period of time when inpatients are prohibited from going out, such as at night.
- the monitoring camera 110 of the alarm system 100 is installed on the ceiling of the doorway, captures an image around the doorway as an imaging area, and generates an imaging area image.
- the information terminal 120 designates the vicinity of the entrance in the imaging area image received from the monitoring camera 110 as the detection area. Then, in the detection process s52 of the monitoring process s50, a detection area (image near the entrance) is extracted from the imaging area image, and the presence of the person P in the extracted detection area image is detected s52. Then, when the person P is detected in the detection area image, the CPU 112 of the monitoring camera 110 transmits a notification to the alarm device 130 to generate an alarm.
- the alarm system in this usage example may be provided with an automatic door provided at the doorway so as to be able to communicate with the surveillance camera 110 .
- the automatic door includes a network module that functions as a receiver for receiving a notification from the surveillance camera 110, and a CPU that controls the door to close when the notification is received. This makes it possible to prevent the inpatient from going out during the curfew time.
- inpatients can be identified based on differences in the clothing of hospitalized patients and the clothing of doctors and nurses.
- the alarm system 100 may be installed not only at the entrance/exit but also in the corridor of the hospital. Specifically, an alarm system 100 is installed in a passage leading to an area where only hospital personnel are permitted to enter, and a monitoring camera 110 is installed on the ceiling of the passage. A part of the passage is set as a detection area by the information terminal 120, and the monitoring camera 110 detects a person P who has entered the part of the passage. Here, when the detected person P is identified as an inpatient, the monitoring camera 110 sends a notification to the alarm device 130, and the alarm device 130 generates an alarm.
- a gate device capable of communicating with the surveillance camera 110 may be provided in the passage.
- the gate device includes a network module that functions as a receiving unit that receives a notification from the surveillance camera 110, and a CPU that controls an opening/closing bar that opens and closes the passage to a closed state when the notification is received.
- the alarm system 100 of the first embodiment can be used for vehicles.
- the monitor camera 120 of the alarm system 110 can set the rear side of a vehicle such as a forklift as an imaging area, and the vicinity of the rear side of the vehicle as a detection area.
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Abstract
Description
上記の実施形態では、監視カメラ110が有するCPU112が、オブジェクトの検出処理s52を実行しているが、監視カメラ110はGPUを備え、当該GPUがオブジェクトの検出処理s52を実行しても構わない。すなわち、GPUが検出部13として機能しても構わない。
上記の実施形態の監視カメラ110が備えるイメージセンサ111はToFカメラセンサであっても構わない。ToFカメラセンサとしては、代表的には、撮像エリアE2に対して光を照射して画素ごとに距離情報を検出するToF方式距離画像センサである。このようなToFカメラを用いて検出エリアE1内におけるオブジェクトの有無を検出しても良い。例えば、画素ごとの距離情報に基づいて人Pの体形やモーションを認識することにより、検出エリアE1における人Pの存在を検出しても構わない。
上記の実施形態では、撮像エリア画像内に1つの検出エリアE1が設定されているが、撮像エリアE2内に複数の検出エリアE1が設定されても構わない。当該態様においては、情報端末120の指定処理s23が複数回実行されることにより、その都度、一の検出エリアE1を定める複数の座標値(座標値群)が監視カメラ110に送信される。監視カメラ110は、座標値群を受信する度に、受信した座標値群を一の検出エリアE1を定める情報としてメモリ113に登録する。そして、検出処理s52において、検出エリア画像を抽出する際には、座標値群ごとに区画される複数の検出エリア画像を抽出し、抽出した検出エリア画像の各々について人Pの存在を検出する。
上記の実施形態が備える監視カメラ110は複数であっても構わない。このような態様においては、監視カメラ110の各々はIPアドレスによって識別され、情報端末120がIPアドレスに基づいて監視カメラ110にアクセスすることとなり、監視カメラ110と情報端末120との間で検出エリアE1の設定が行われることとなる。
上記の実施形態が備える警報器130は複数であっても構わない。このような態様においては、警報器130の各々はIPアドレスによって識別され、監視カメラ110がIPアドレスに基づいて警報器130に対して通知を送信することとなる。
上記の実施形態では、監視カメラ110に対して情報端末120および警報器130がネットワークを介して通信する態様であったが、通信態様は、Bluetooth(登録商標)やIrDAなどの無線通信であっても構わない。すなわち、通信部14,24および受信部34として、BluetoothモジュールやIrDAモジュールを用いても構わない。また、USBなどの有線通信であっても構わない。すなわち、通信部14,24および受信部34として、USBモジュールを用いても構わない。
上記の実施形態では、情報端末としてパソコンを用いているが、スマートフォンやタブレット端末などの携帯情報端末であっても構わない。このような態様において、携帯情報端末の液晶ディスプレイは、表示処理s22が実行されることにより、撮像エリア画像を表示する表示部21として機能する。また、携帯情報端末が有するタッチパネルは、指定処理s23が実行されることにより、検出エリアを指定するための座標入力部(不図示)として機能する。また、上記情報端末および携帯情報端末に限られず、監視カメラ110に対して、検出エリアを指定する指定部を備える専用端末であっても構わない。
上記の実施形態では、監視カメラ110は、検出エリアE1内に人Pが検出された場合に通知を警報器130に送信しているが、人Pが備える名札などの目印を認識することにより、通知を送信するか否かを制御しても構わない。例えば、人Pが検出された場合において、その人Pの画像を解析する。解析した結果、名札が検出されなかった場合には通知(警報命令)を警報器130に送信する。一方、解析した結果、名札が検出された場合には、当該名札に表示されている文字列を認識する。そして、当該認識した文字列(氏名)がメモリなどに登録されている文字列(氏名)と一致しない場合には通知(警報命令)を警報器130に送信し、認識した文字列(氏名)が予め登録されている文字列(氏名)と一致する場合には、当該人Pは立入許諾者であると判定し、通知を警報器130に送信しない。
上記の実施形態では、警報器130として赤色光源131を用いているが、警報器130としてスピーカーを用いても構わない。このような態様では、警報器130のCPU120は、監視カメラ110から通知を受信すると、スピーカーから警告音や音声を発生させて人Pに対して注意を促すことができる。また、赤色光源131とスピーカーの両方を用いても構わない。
上記実施形態では、監視カメラ110に対して通信可能な警報器130を用いているが、監視カメラ110に対して通信可能な表示装置を備えても構わない。当該表示装置は、受信部として機能するネットワークモジュールと、表示部として機能する液晶ディスプレイと、監視カメラ110から受信した通知に基づいて、液晶ディスプレイに注意を促す画像を表示させる制御部として機能するCPUと、を備えている。
上記の実施形態の警報システムは、監視カメラ110と通信可能に設けられたRFIDリーダを備えても構わない。RFIDリーダは、例えば、立入禁止エリアE1aの近くに設けられ、立入禁止エリアE1aに立ち入ることを許可された人Pに付与されたRFタグを読み取る。当該RFタグには立入許可された人Pを識別するためのIDが記憶されている。RFIDリーダは、人Pが有するRFタグからIDを読み取ると、読み取ったIDを監視カメラ110へと送信する。監視カメラ110はRFIDリーダからIDを受信すると、受信したIDをメモリなどに事前登録されている立入許可IDと照合し、IDが一致する場合には、通知処理s54において通知を警報器130に送信しない。なお、RFIDリーダに限られず、IDが符号化されたバーコードやQRコード(登録商標)を読み取るリーダであっても構わない。
上記の実施形態のシステムは、監視カメラ110と通信可能に設けられた指紋認証装置を備えても構わない。指紋認証装置は、例えば、立入禁止エリアE1aの近くに設けられる。指紋認証装置は、立入許可された人Pの指紋の特徴量が事前に記憶されたメモリと、人Pの指紋の特徴量を検出する指紋センサと、検出された指紋の特徴量をメモリに記憶された特徴量と照合して、立入許可の有無を判定するCPUと、を備えている。CPUは、ネットワークモジュールを介して、判定結果を監視カメラ110へと送信する。監視カメラ110は、指紋認証装置から判定結果を受信し、判定結果が立入許可ありの場合には、通知処理s54において通知を警報器130に送信しない。一方、判定結果が立入許可なしの場合には、通知処理s54において通知を警報器130に送信する。
14 通信部(送信部)
22 指定部
100 監視システム
110 監視カメラ(カメラ)
120 情報端末(端末)
130 警報器(他の機器)
E1 検出エリア
E2 撮像エリア
Claims (4)
- カメラ、及び当該カメラと通信可能な端末と、を備え、
前記端末は、
カメラから取得した画像中において、オブジェクトを検出すべき検出エリアを前記カメラに対して指定する指定部を備え、
前記カメラは、
生成した画像における前記検出エリア内のオブジェクトを検出する検出部と、
前記オブジェクトが検出されたことを示す通知を他の機器に送信する送信部と、
を備えるシステム。 - 前記他の機器は、前記カメラから受信した通知に基づいて作動することを特徴とする、請求項1に記載のシステム。
- 前記カメラは、前記オブジェクトの検出とは異なる他の条件が満たされた場合に、前記通知を送信しないことを特徴とする、請求項1または請求項2に記載のシステム。
- 画像を生成する撮像部と、
前記生成された画像中において、オブジェクトを検出すべき検出エリアが、通信可能な端末によって設定される設定部と、
前記生成された画像における前記検出エリア内のオブジェクトを検出する検出部と、
前記オブジェクトが検出されたことを示す通知を他の機器に送信する送信部と、
を備えるカメラ。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04311186A (ja) * | 1991-04-10 | 1992-11-02 | Toshiba Corp | 画像監視装置 |
JP2000293773A (ja) * | 1999-04-08 | 2000-10-20 | Toenec Corp | 警報装置及び方法 |
JP2011134004A (ja) | 2009-12-22 | 2011-07-07 | Panasonic Electric Works Co Ltd | 建物状況監視システムおよび監視装置 |
JP5686435B2 (ja) | 2011-03-14 | 2015-03-18 | オムロン株式会社 | 監視システム、監視カメラ端末、および動作モード制御プログラム |
JP2015170141A (ja) * | 2014-03-07 | 2015-09-28 | 株式会社中電工 | 指定範囲監視システム |
JP2019016836A (ja) * | 2017-07-03 | 2019-01-31 | 沖電気工業株式会社 | 監視システム、情報処理装置、情報処理方法、及びプログラム |
-
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- 2022-06-30 WO PCT/JP2022/026397 patent/WO2023277165A1/ja active Application Filing
- 2022-06-30 EP EP22833311.8A patent/EP4366299A1/en active Pending
- 2022-06-30 JP JP2023532080A patent/JPWO2023277165A1/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04311186A (ja) * | 1991-04-10 | 1992-11-02 | Toshiba Corp | 画像監視装置 |
JP2000293773A (ja) * | 1999-04-08 | 2000-10-20 | Toenec Corp | 警報装置及び方法 |
JP2011134004A (ja) | 2009-12-22 | 2011-07-07 | Panasonic Electric Works Co Ltd | 建物状況監視システムおよび監視装置 |
JP5686435B2 (ja) | 2011-03-14 | 2015-03-18 | オムロン株式会社 | 監視システム、監視カメラ端末、および動作モード制御プログラム |
JP2015170141A (ja) * | 2014-03-07 | 2015-09-28 | 株式会社中電工 | 指定範囲監視システム |
JP2019016836A (ja) * | 2017-07-03 | 2019-01-31 | 沖電気工業株式会社 | 監視システム、情報処理装置、情報処理方法、及びプログラム |
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