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WO2001048724A1 - Appareil de traitement d'images, procédé de traitement d'images et système de surveillance de véhicule - Google Patents

Appareil de traitement d'images, procédé de traitement d'images et système de surveillance de véhicule Download PDF

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Publication number
WO2001048724A1
WO2001048724A1 PCT/JP2000/009025 JP0009025W WO0148724A1 WO 2001048724 A1 WO2001048724 A1 WO 2001048724A1 JP 0009025 W JP0009025 W JP 0009025W WO 0148724 A1 WO0148724 A1 WO 0148724A1
Authority
WO
WIPO (PCT)
Prior art keywords
image
road
image processing
corrected
photographing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2000/009025
Other languages
English (en)
Japanese (ja)
Inventor
Takeshi Iwamoto
Kunio Sakai
Kunihiko Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to AT00987649T priority Critical patent/ATE294434T1/de
Priority to DE60019813T priority patent/DE60019813T2/de
Priority to EP00987649A priority patent/EP1262933B1/fr
Publication of WO2001048724A1 publication Critical patent/WO2001048724A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors

Definitions

  • Image processing apparatus image processing method, and vehicle monitoring system
  • the present invention relates to an image processing device, an image processing method, and a vehicle monitoring system used for monitoring a vehicle and the like.
  • CCTV closed-circuit television
  • CCTV closed-circuit television
  • many cameras are installed to avoid blind spots.
  • the output image of this camera is transmitted to a road control center and the like, displayed on a monitor, and monitored by an observer.
  • a camera image is displayed by assigning multiple cameras to one monitor.
  • a method of sequentially switching and displaying a plurality of camera images every few seconds has been adopted. Disclosure of the invention
  • the above-described traffic monitoring method has a problem that detection of a traffic abnormality is delayed. That is, since the camera images are switched and displayed on the monitor, there are camera images that are not displayed, and the detection of traffic abnormalities may be delayed. In addition, it has been pointed out that problems such as frequent switching of camera images cause a great amount of fatigue of the observer and oversight of traffic abnormalities.
  • the present invention has been made to solve the above problems, and an object of the present invention is to provide an image processing device, an image processing method, and a vehicle monitoring system capable of improving detection of traffic abnormalities. .
  • an image processing apparatus captures a road Conversion means for inputting a plurality of video signals which have been input, and AZD converting the video signals into digital images, correction means for correcting the digital images so that the road faces in the vertical or horizontal direction of the digital images, and correction means.
  • An image synthesizing means for synthesizing a plurality of corrected images is provided so that each road photographed on the corrected image is continuous.
  • the image processing apparatus is characterized by including a storage unit for storing the synthesized image as image data.
  • the image processing method includes a conversion step of inputting a plurality of video signals obtained by photographing a road and AZD converting the video signals into a digital image, and A correcting step of correcting the digital image so as to face the direction, and an image combining step of combining a plurality of corrected images so that each road photographed on the corrected image corrected by the correcting means is continuous. I have.
  • the image processing method according to the present invention is characterized in that the image processing method further comprises an accumulation step of accumulating an image synthesized after the image synthesis step as image data.
  • the vehicle monitoring system includes: a photographing means for photographing a plurality of vehicles traveling along a road to be monitored along a road to be monitored; and inputting each video signal photographed by the photographing means.
  • the vehicle monitoring system includes: a photographing unit including a plurality of vehicles arranged along a road to be monitored and traveling on the road from a side of the road; and a photographing optical system including a wide-angle lens;
  • a photographing unit including a plurality of vehicles arranged along a road to be monitored and traveling on the road from a side of the road
  • a photographing optical system including a wide-angle lens
  • Each video signal captured by the means is input, each video signal is A / D converted to a digital image, the distortion of the digital image by the wide-angle lens is corrected, and each road captured in the corrected digital image is continuous
  • the corrected image processing apparatus includes image processing means for combining and display means for displaying an image processed by the image processing means.
  • the vehicle monitoring system is characterized in that the display means is a projector having a horizontally long display area.
  • the vehicle monitoring system is characterized in that the image processing means stores the synthesized image as image data.
  • the entire road to be monitored for traffic can be displayed on one screen. Therefore, the entire road can be monitored without switching the screen display. Therefore, since there is no area that cannot be monitored by switching screens, delays in detecting traffic abnormalities can be prevented, and detection of traffic abnormalities can be speeded up. In addition, since there is no screen switching, traffic abnormalities can be detected based on screen changes, making it easier to visually detect traffic abnormalities and reducing the monitoring burden.
  • FIG. 1 is an explanatory diagram of a vehicle monitoring system according to a first embodiment of the present invention.
  • FIG. 2 is a flowchart showing the operation of the image processing device of the image processing device in the vehicle monitoring system of FIG.
  • FIG. 3 is an explanatory diagram of an A / D converted digital image.
  • FIG. 4 is an explanatory diagram of the corrected image after the correction processing.
  • FIG. 5 is an explanatory diagram of a synthesized image subjected to the synthesis processing.
  • FIG. 6 is an explanatory diagram of a vehicle monitoring system and the like according to the second embodiment.
  • FIG. 7 is an explanatory diagram of the AZD-converted digital image.
  • FIG. 8 is an explanatory diagram of the corrected image after the correction processing.
  • FIG. 9 is an explanatory diagram of a synthesized image subjected to the synthesis processing.
  • FIG. 10 is an explanatory diagram of a vehicle monitoring system and the like according to the third embodiment.
  • FIG. 1 shows an explanatory diagram of the vehicle monitoring system.
  • the vehicle monitoring system is a system for monitoring the traffic condition of a road, and is used, for example, in a system for detecting a traffic abnormality in a tunnel 1.
  • the vehicle monitoring system includes a plurality of monitoring cameras 2.
  • the surveillance camera 2 is a photographing means for photographing a vehicle 11 traveling on a road in the tunnel 1, and is installed at regular intervals in the tunnel 1.
  • the installation interval of the monitoring camera 2 is, for example, about 200 m.
  • the shooting direction of the monitoring camera 2 is such that the front or rear of the vehicle 11 traveling on the road 10 is shot.
  • Each surveillance camera 2 is connected to a distributor 3.
  • the distributor 3 is installed in a facility 4 built near the tunnel 1, and inputs a video taken by each monitoring camera 2 and outputs it to the image processing device 5.
  • the image processing device 5 is image processing means for inputting an image of the surveillance camera 2 and performing image processing, and transmits the processed image to the control center 6.
  • the image processing device 5 includes, for example, an A / D converter, a video frame memory, an image processor, and a signal output interface.
  • the A / D converter performs AZD conversion of an input video signal from an analog signal to a digital signal.
  • a video A / D converter is used.
  • the video frame memory stores digitally converted video signals as image data.
  • Image data consists of a collection of pixels with gray values for each coordinate point on the X and y axes.
  • the density of the pixel is, for example, 256 bits of 8 bits.
  • the image processor is for processing the image data stored in the video frame memory.
  • the signal output interface is for outputting an image processed by an instruction of the image processor to the outside.
  • the image transmitted from the image processing device 5 is input to the monitor 61.
  • the photographed image in the tunnel 1 is displayed through the monitor 61. Through this image, the observer can visually monitor the running state of the vehicle in tunnel 1.
  • the monitor 61 is a means for displaying an image, and preferably has a horizontally long display area. For example, a projector is used.
  • FIG. 1 a vehicle 11 traveling on a road 10 is photographed by a surveillance camera 2, and a video signal is input to a distributor 3 from each surveillance power camera 2.
  • the video signal of the monitoring power camera 2 is input to the image processing device 5 as appropriate. Then, the image processing device 5 performs image processing of the video signal.
  • FIG. 2 shows a flowchart of image processing in the image processing device 5.
  • AZD conversion is a process of converting an analog image of a video signal into a digital image, and the converted digital image is stored in a video frame memory as image data.
  • the image correction is a process of correcting an image in an AZD-converted digital image such that a road 11 displayed in the digital image is oriented in a vertical direction or a horizontal direction of the image.
  • the digital image shown in FIG. 3 is corrected to the corrected image shown in FIG.
  • the digital image 20 shows the road 10 moving away from the lower right part to the upper left part.
  • This digital image 20 is, as shown in Figure 4, the road 10 Is corrected so as to be in the horizontal direction, and a corrected image 21 is obtained by the correction processing.
  • the vehicle 11 traveling on the road 10 is also image-processed according to the correction.
  • the image synthesis is a process of synthesizing a corrected image subjected to image correction. For example, each corrected image 21 related to a video signal simultaneously captured by each monitoring camera 2 is synthesized into one image. At this time, the synthesizing process is performed so that the roads 10 represented in the respective corrected images 21 are continuous. Also, synthesis is performed so that the same vehicle 11 is not displayed more than once.
  • Figure 5 shows the synthesized image 22 after the synthesis processing.
  • the synthesized image 22 is transmitted to the control center 6. Then, after ending the image synthesizing process, the synthesized image 22 is transmitted to the control center 6. Then, the entire composite image 22 is displayed on the monitor 61 of the control center 6.
  • the image processing device, the image processing method, and the vehicle monitoring system according to the present embodiment it is possible to represent the entire road 10 to be monitored for traffic on one screen. Therefore, the entire road can be monitored without switching the screen display.
  • the composite image 22 is transmitted to the control center 6, but the image processing device, the image processing method, and the image processing method according to the present invention are used.
  • the vehicle monitoring system is not limited to such a system, but may be a system that transmits a plurality of corrected images 21 to the control center 6 and performs image synthesis in the control center 6. Alternatively, all of the image processing (A / D conversion, image correction, image synthesis) may be performed by the control center 6.
  • the image processing device, the image processing method, and the vehicle monitoring system according to the present embodiment have been described with respect to vehicle monitoring on a road in the tunnel 1.
  • the image processing device, the image processing method, and the vehicle monitoring system according to the present invention are not limited to those described above, and may be related to vehicle monitoring of a road in another place.
  • the image processing device, the image processing method, and the vehicle monitoring system according to the present embodiment have substantially the same configuration as the image processing device, the image processing method, and the vehicle monitoring system according to the first embodiment.
  • the difference is that a surveillance camera 3 includes a photographic optical system having a wide-angle lens, and an image processing device 5 as image processing means corrects image distortion caused by the wide-angle lens.
  • FIG. 6 is an explanatory diagram of an image processing device, an image processing method, and a monitoring camera in the vehicle monitoring system according to the present embodiment.
  • the surveillance camera 2 is arranged so as to photograph the vehicle 11 traveling on the road 10 from the side of the road 10 to be monitored.
  • the surveillance camera 2 has a wide-angle lens in the shooting optical system, and can shoot with a wide angle of view.
  • a fisheye lens is used as the wide-angle lens.
  • the “wide-angle lens” means a lens having an angle of view wider than the standard lens, and for example, may be any lens having an angle of view of 60 degrees or more.
  • the operation of the vehicle monitoring system according to the present embodiment the operation of the image processing device, and the image processing method will be described. Similar to the vehicle monitoring system according to the first embodiment, the vehicle traveling on the road 10 with the monitoring force 2 11 is photographed, and the video signal from each surveillance camera 2 is input to the distributor 3. The distributor 3 inputs the video signal of the monitoring camera 2 to the image processing device 5 as appropriate. Then, the image processing apparatus 5 dividing the image processing intensity s i ⁇ video signal.
  • AZD conversion processing is performed as in the first embodiment.
  • the image correction processing the image taken through the wide-angle lens Correction for removing distortion is performed.
  • the digital image 30 that has been subjected to the AZD conversion processing has been captured through a wide-angle lens, and thus has a large barrel distortion.
  • a corrected image 31 from which the distortion has been removed is obtained as shown in FIG.
  • the image synthesizing process the respective corrected images 31 related to the video signals captured simultaneously by the respective monitoring cameras 2 are synthesized into one synthesized image 32.
  • the combining process is performed so that the roads 10 represented in the respective corrected images 21 are continuous.
  • synthesis is performed so that the same vehicle 11 is not displayed more than once.
  • FIG. 9 shows a composite image 32 subjected to the composition processing.
  • the synthesized image 32 is transmitted to the control center 6. Then, the entire composite image 32 is displayed on the monitor 61 of the control center 6.
  • the traffic monitoring is performed similarly to the image processing device, the image processing method, and the vehicle monitoring system according to the first embodiment. It is possible to represent the entire toll road 10 on one screen. Therefore, the entire road can be monitored without switching the screen display. Therefore, since there is no area that cannot be monitored by switching the screen, delays in detecting traffic abnormalities can be prevented, and detection of traffic abnormalities can be speeded up. In addition, since there is no screen switching, a traffic abnormality can be detected based on a screen change, which makes it easy to visually detect a traffic abnormality and reduces the monitoring burden.
  • the image processing device, the image processing method, and the vehicle monitoring system according to the present embodiment have substantially the same configuration as the image processing device, the image processing method, and the vehicle monitoring system according to the first and second embodiments. However, they differ in that image storage is performed after image synthesis in the image processing means and the image processing process.
  • FIG. 10 shows a flowchart of image processing in the image processing apparatus, the image processing method, and the vehicle monitoring system according to the present embodiment.
  • the A / D conversion of S100, the image correction of S200, and the image synthesis of S300 in FIG. 10 are the same as those described in the first embodiment, and thus description thereof is omitted. I do.
  • image accumulation is performed.
  • the image storage is performed by storing the synthesized image 22 or the synthesized image 32 in a storage device such as a memory. By storing the composite image 22 or the composite image 32 in this way, after the occurrence of a traffic abnormality, the composite image can be confirmed and the occurrence of the abnormality can be analyzed.
  • the present invention it is possible to represent the entire road to be monitored for traffic on one screen. Therefore, the entire road can be monitored without switching the screen display. Therefore, since there is no area that cannot be monitored by switching screens, delays in detecting traffic abnormalities can be prevented, and detection of traffic abnormalities can be speeded up.
  • the image processing device, the image processing method, and the vehicle monitoring system of the present invention are useful in traffic monitoring of a vehicle traveling on a road.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Image Processing (AREA)
  • Burglar Alarm Systems (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

L'image d'un véhicule se déplaçant sur une route est saisie au moyen d'une pluralité de caméras de surveillance installées le long de la route, et le signal image en provenance de la caméra de surveillance est soumis à une conversion A/N aux fins de la production d'un signal numérique, qui est ensuite corrigé de sorte que la route soit orientée suivant l'horizontale ou suivant la verticale sur l'image numérique. Les images ainsi formées sont combinées de manière que les routes sur les images numériques corrigées soient continues. De ce fait, la totalité de la route devant être surveillée afin d'assurer une régulation du trafic peut être affichée sur un écran et surveillée sans commutation de l'écran d'affichage, et la détection d'un trafic anormal peut être accélérée.
PCT/JP2000/009025 1999-12-27 2000-12-20 Appareil de traitement d'images, procédé de traitement d'images et système de surveillance de véhicule Ceased WO2001048724A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT00987649T ATE294434T1 (de) 1999-12-27 2000-12-20 Bildverarbeitungsvorrichtung, bildverarbeitungsverfahren und fahrzeugüberwachungssystem
DE60019813T DE60019813T2 (de) 1999-12-27 2000-12-20 Bildverarbeitungsvorrichtung, bildverarbeitungsverfahren und fahrzeugüberwachungssystem
EP00987649A EP1262933B1 (fr) 1999-12-27 2000-12-20 Appareil de traitement d'images, proc d de traitement d'images et syst me de surveillance de v hicule

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11/370298 1999-12-27
JP37029899A JP3601392B2 (ja) 1999-12-27 1999-12-27 画像処理装置、画像処理方法及び車両監視システム

Publications (1)

Publication Number Publication Date
WO2001048724A1 true WO2001048724A1 (fr) 2001-07-05

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Family Applications (1)

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PCT/JP2000/009025 Ceased WO2001048724A1 (fr) 1999-12-27 2000-12-20 Appareil de traitement d'images, procédé de traitement d'images et système de surveillance de véhicule

Country Status (7)

Country Link
EP (1) EP1262933B1 (fr)
JP (1) JP3601392B2 (fr)
AT (1) ATE294434T1 (fr)
DE (1) DE60019813T2 (fr)
ES (1) ES2237485T3 (fr)
HK (1) HK1047814B (fr)
WO (1) WO2001048724A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111935451A (zh) * 2020-07-16 2020-11-13 中国铁道科学研究院集团有限公司电子计算技术研究所 铁路安全监测装置
US12322288B2 (en) 2020-06-12 2025-06-03 Ningbo Geely Automobile Research & Dev. Co., Ltd. Vehicle control system and method for providing information to support overtaking maneuver

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10239026B4 (de) * 2002-08-21 2008-04-03 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren und Vorrichtung zur Verkehrsüberwachung
US8823797B2 (en) * 2010-06-03 2014-09-02 Microsoft Corporation Simulated video with extra viewpoints and enhanced resolution for traffic cameras
CN101976341B (zh) * 2010-08-27 2013-08-07 中国科学院自动化研究所 一种从交通图像中检测车辆位置、姿态和三维轮廓的方法
EP2733677A1 (fr) * 2012-11-19 2014-05-21 Kapsch TrafficCom AB Dispositif de péage ou systèmes télématiques
FR3080701B1 (fr) * 2018-04-26 2020-05-15 Transdev Group Systeme de surveillance de la circulation routiere avec affichage d'une image virtuelle d'objets mobiles evoluant dans une portion d'infrastructure routiere

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JPH1115981A (ja) * 1997-06-19 1999-01-22 Matsushita Electric Ind Co Ltd 広域監視装置及び広域監視システム
JPH1139589A (ja) * 1997-07-18 1999-02-12 Fuji Electric Co Ltd 交通監視装置および交通監視方法
JPH1196494A (ja) * 1997-09-22 1999-04-09 Hitachi Ltd 交通流監視方法および装置
JP2000331279A (ja) * 1999-05-25 2000-11-30 Oki Electric Ind Co Ltd 広域監視装置

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US5682198A (en) * 1993-06-28 1997-10-28 Canon Kabushiki Kaisha Double eye image pickup apparatus
FR2714502A1 (fr) * 1993-12-29 1995-06-30 Philips Laboratoire Electroniq Procédé et dispositif de traitement d'image pour construire à partir d'une image source une image cible avec changement de perspective.
JP3569992B2 (ja) * 1995-02-17 2004-09-29 株式会社日立製作所 移動体検出・抽出装置、移動体検出・抽出方法及び移動体監視システム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1115981A (ja) * 1997-06-19 1999-01-22 Matsushita Electric Ind Co Ltd 広域監視装置及び広域監視システム
JPH1139589A (ja) * 1997-07-18 1999-02-12 Fuji Electric Co Ltd 交通監視装置および交通監視方法
JPH1196494A (ja) * 1997-09-22 1999-04-09 Hitachi Ltd 交通流監視方法および装置
JP2000331279A (ja) * 1999-05-25 2000-11-30 Oki Electric Ind Co Ltd 広域監視装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12322288B2 (en) 2020-06-12 2025-06-03 Ningbo Geely Automobile Research & Dev. Co., Ltd. Vehicle control system and method for providing information to support overtaking maneuver
CN111935451A (zh) * 2020-07-16 2020-11-13 中国铁道科学研究院集团有限公司电子计算技术研究所 铁路安全监测装置

Also Published As

Publication number Publication date
HK1047814A1 (en) 2003-03-07
JP3601392B2 (ja) 2004-12-15
EP1262933A4 (fr) 2004-03-31
JP2001184586A (ja) 2001-07-06
DE60019813T2 (de) 2005-10-06
ATE294434T1 (de) 2005-05-15
EP1262933B1 (fr) 2005-04-27
DE60019813D1 (de) 2005-06-02
EP1262933A1 (fr) 2002-12-04
ES2237485T3 (es) 2005-08-01
HK1047814B (en) 2005-06-24

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