EP1732051A1 - Method and device for traffic surveillance - Google Patents
Method and device for traffic surveillance Download PDFInfo
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- EP1732051A1 EP1732051A1 EP06011015A EP06011015A EP1732051A1 EP 1732051 A1 EP1732051 A1 EP 1732051A1 EP 06011015 A EP06011015 A EP 06011015A EP 06011015 A EP06011015 A EP 06011015A EP 1732051 A1 EP1732051 A1 EP 1732051A1
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 238000004590 computer program Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 claims 1
- 238000012432 intermediate storage Methods 0.000 claims 1
- 230000000007 visual effect Effects 0.000 abstract 1
- 230000006698 induction Effects 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- 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
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
Definitions
- the invention relates to a method for monitoring, in particular red light monitoring, a light-signal-controlled road spot, in particular crossing or junction.
- the invention further relates to a corresponding device.
- a disadvantage of such camera and flash devices is that a red light violation only at a certain time, to which the vehicle is usually already in the intersection, is documented. In particular, it is not possible to document the misconduct over a longer period of time.
- an induction loop must be present in the roadway and the camera and flash unit must be both with the induction loop and the traffic light control keep in touch. For the installation of such a camera and flash unit, therefore, an additional effort is needed.
- the invention is therefore an object of the invention to provide a way to document with the least possible effort a failure to the light signals of a traffic light system, especially over a longer period of time.
- this object is achieved for a method in that continuously images are acquired and provided by an image acquisition system, in particular at least one video camera, which contain pixels that correspond to at least part of the street location and at least part of the traffic light system on the basis of the images a vehicle entering the roadway and / or a change in the light signal of the traffic light system, in particular red, and when a vehicle enters the roadside after the time of the change of the light signal or after a time which is a predetermined distance at the time the change of the light signal, images are stored, which contain pixels that correspond to at least a portion of the vehicle, in particular the license plate.
- this object is achieved by an image acquisition system, in particular at least one video camera, which is designed to capture and provide images containing pixels that correspond to at least part of the street location and at least part of the traffic light system, a data processing device connected to the image acquisition system which are used to detect an in the road surface incoming vehicle and / or a change of the light signal of the traffic light system, in particular red, is formed on the basis of the images, and when entering a vehicle in the street after the time of change of the light signal or after a time that a predetermined Distance to the time of the change of the light signal, is designed to store images containing pixels that correspond to at least part of the vehicle, in particular the license plate, and a disk on which the images to be stored can be stored.
- an image acquisition system in particular at least one video camera, which is designed to capture and provide images containing pixels that correspond to at least part of the street location and at least part of the traffic light system
- a data processing device connected to the image acquisition system which are used to detect an in the road surface incoming vehicle and
- the invention is characterized in that an image acquisition system, in particular at least one video camera, is provided which can continuously acquire images. At least a portion of the road to be monitored, into which motor vehicles can enter, and at least part of the traffic light system or traffic light, in particular the light signal whose activation triggers the storage of images, can be seen on the images.
- an image acquisition system in particular at least one video camera
- a vehicle entering the monitored road spot can be recognized.
- a change of the light signal of the traffic light system for example from green to yellow or from yellow to red, can be detected.
- the change of the light signal can be recognized in particular by the changing intensity of the light points corresponding pixels of the images.
- the images are continuously focused on the entry of vehicles into the roadside, preferably from at least one direction, and on a change in the light signal of the traffic light system, i. in particular monitored on switching the traffic lights. If it is determined that after a certain point in time a vehicle still enters the roadside, images are stored which show at least a part of the vehicle, in particular its registration number. At the specific time may be the time of change of the light signal, in particular from yellow to red, or else at a time which has a predetermined distance to the time of the change of the light signal, act. In particular, the specific time may be before or after the time of the change of the light signal.
- the stored images preferably comprise at least images that are acquired over a certain period of time from the specific time.
- a data processing device For detecting a vehicle entering the roadway and / or a change in the light signal of the traffic light system, a data processing device is provided which stores the images to be stored on the data carrier, in particular a nonvolatile memory, for example a hard disk, if the vehicle enters the roadside irregularly.
- the image capture system is weatherproof and adapts automatically to the given light conditions.
- the stored images assigned to a vehicle which has been retracted incorrectly into the street area comprise pixels which correspond at least to a part of the vehicle from which an assignment of the vehicle to a vehicle owner is possible. In particular, it is at the part of the vehicle to the license plate of the vehicle.
- images are preferably stored that show not only the license plate, but at least a portion of the road area with the motor vehicle and the part of the traffic light system, which indicates the change of the light signal.
- the irregular entry of the vehicle into the street area and, on the other hand, the direct traffic light of the traffic light system can be documented.
- a video film or a series of images which may comprise fewer images per unit of time than the video film, is recorded for each vehicle that enters the street irregularly.
- An entry into the street location is to be understood in particular as meaning that the entering vehicle passes over or crosses a stop line or a fictitious line mounted on the roadway, or exceeds or falls below a certain minimum distance from the device according to the invention or a reference point of the roadway.
- the invention it is possible to dispense with an induction loop installed in the roadway, since the entry of a vehicle into the roadside can be recognized solely by means of the image acquisition system. In addition, by means of the image acquisition system, a change of the light signal of the traffic light system can be detected. With the invention, it is possible, without further facilities, such as an induction loop or a connection to the traffic light control, a traffic monitoring, in particular red light monitoring to perform. The device according to the invention can therefore without additional measures or precautions may be installed on any road-signaling road-markings.
- images are stored over a predetermined period of time, for example several seconds.
- the recording length is the same for all recordings.
- images can also be stored for a period of time that lasts until the vehicle leaves the viewing area of the image capture system.
- Different recordings then have different recording lengths, which depend on how long the respective vehicle remains in the field of view of the image acquisition system. In this way it can be ensured that the behavior of the vehicle which has been illegally transported to the roadside is fully documented in terms of time.
- the last section of the yellow phase can also be stored. If the saving of images is triggered by a change of the light signal from green to yellow, the last section of the green phase can be saved with.
- all captured images are temporarily stored temporarily. It is particularly advantageous in this case if the temporary storage is continuously overwritten in the manner of an endless loop.
- the cache may have a memory size that allows a recording time of about 10 to 20 seconds.
- the image capture system is sort of in a permanent capture mode. If an illegal entry of a vehicle is recognized in the street site, the corresponding images, in particular images that have already been detected during a certain time before the date of the change of the light signal, then stored on the disk.
- the stored images contain pixels that correspond to at least a portion of the driver of the vehicle and in particular allow identification of the driver. In the case of an evaluation of the stored images, the driver actually located at the wheel of the vehicle at the time in question can thereby be determined.
- the license plate can be identified automatically on the basis of the images. As a result, it is thus not necessary to carry out a manual evaluation with regard to the license plate in order to enable the vehicle to be assigned to the respective vehicle owner.
- the respective images can then be stored or stored under the license plate of the vehicle in the case of such automatic identification.
- the time and / or the date is recorded and associated with the images with the capture of the images.
- the recorded time and / or the date can be superimposed into the respectively assigned images.
- a radio clock can be used, so that the correctness of the time and / or the date is guaranteed.
- the radio times can be recorded in a log file.
- a suitable computer clock can be used.
- Another object of the invention is a computer program with program code means to perform the inventive method when the program is executed on a computer.
- the invention also relates to a computer program product with program code means which are stored on a computer-readable data carrier in order to carry out the method according to the invention when the computer program product is executed on a computer.
- a computer is understood to mean any data processing device with which the method can be executed.
- these may include digital signal processors and / or microprocessors, with which the method is carried out in whole or in part.
- the single FIGURE shows a perspective view of a light-controlled crossing on which a device according to the invention is set up.
- the device 10 comprises a video camera whose viewing area 12 is directed at the intersection to be monitored, a data processing device connected to the video camera or a computer for evaluating images captured and provided by the video camera, a temporary memory in which all captured images are temporarily stored in which the buffer memory is continuously overwritten in the manner of an endless loop, and a hard disk on which images to be stored can be stored.
- a data processing device connected to the video camera or a computer for evaluating images captured and provided by the video camera, a temporary memory in which all captured images are temporarily stored in which the buffer memory is continuously overwritten in the manner of an endless loop, and a hard disk on which images to be stored can be stored.
- a traffic light 14 and 16 are set up in the longitudinal direction per direction of travel.
- the traffic lights of the transverse direction have been omitted for the sake of simplicity.
- the traffic lights 14 and 16 and the traffic lights 14 and 16 associated stop lines 18 and 20 are each in the field of view 12 of the device 10 according to the invention.
- the video camera of the device 10 continuously detects the intersection including the stop line 18 and the traffic light 14, ie the images captured by the video camera contain pixels that correspond to the intersection and the traffic light 14.
- the data processing device of the device 10 can detect a change in the light signals of the traffic light system, in particular from yellow to red, based on the images taken by the video camera.
- the data processing device can detect vehicles, not shown, on the basis of the recorded images in the figure.
- the data processing device can detect whether a vehicle approaching the intersection in the direction of the traffic light 14 crosses the stop line 18. By crossing the stop line 18 is meant a retraction into the intersection in the sense of this application.
- the data processing device now determines that a vehicle has still entered the intersection, even though the traffic light 14 has already switched from yellow to red, the images captured by the video camera will be on the hard disk from the time the light signal changes from yellow to red the device 10 is stored. The images are stored over a period of time that lasts until the vehicle has left the viewing area 12 of the video camera.
- the current time and the current date are recorded by means of a radio clock, not shown in the figure, of the device 10 according to the invention and superimposed into the images to be stored or stored. From the images can by means of the data processing device, the license plate of the motor vehicle be automatically identified, under which the respective images that represent a video, then stored.
- the device 10 according to the invention not only enables the traffic entering the intersection via the stop line 18, but also monitored on the stop line 20 entering the intersection oncoming traffic.
- the oncoming traffic is received head-on by the device 10 according to the invention, wherein the images captured by the video camera also show the face of the respective driver, so that an identification of the respective driver is possible.
- the device 10 according to the invention can also be used only for monitoring oncoming traffic.
- a device according to the invention is mounted on both sides of the crossing so that a front view and / or a rear view is available for both directions of travel, or both a front view and a rear view for a vehicle.
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Überwachung, insbesondere Rotlichtüberwachung, einer lichtzeichengeregelten Straßenstelle, insbesondere Kreuzung oder Einmündung. Die Erfindung betrifft ferner eine entsprechende Vorrichtung.The invention relates to a method for monitoring, in particular red light monitoring, a light-signal-controlled road spot, in particular crossing or junction. The invention further relates to a corresponding device.
Es ist bekannt, Kreuzungen mit Lichtzeichenanlagen oder Ampeln durch fest montierte Kamera- und Blitzgeräte zu überwachen. Wenn ein Fahrzeug während einer Rotlichtphase, insbesondere über eine Markierung, beispielsweise eine Haltelinie, in die Kreuzung einfährt, wird das Fahrzeug durch die Kamera fotografisch erfasst. Hierfür ist das Kamera- und Blitzgerät üblicherweise mit einer Induktionsschleife in der Fahrbahn, die ein Signal abgibt, wenn ein Fahrzeug in die Kreuzung einfährt, und der Ampelsteuerung, die bei einem Wechsel des Lichtzeichens ebenfalls ein Signal abgibt, verbunden.It is known to monitor intersections with traffic lights or traffic lights by permanently mounted camera and flash units. When a vehicle enters the intersection during a red light phase, in particular via a marker, for example a stop line, the vehicle is photographically captured by the camera. For this purpose, the camera and flash unit is usually connected to an induction loop in the lane, which emits a signal when a vehicle enters the intersection, and the traffic light control, which also emits a signal when the light signal changes.
Nachteilig bei derartigen Kamera- und Blitzgeräten ist jedoch, dass ein Rotlichtverstoß lediglich zu einem bestimmten Zeitpunkt, zu dem sich das Fahrzeug üblicherweise bereits in der Kreuzung befindet, dokumentiert wird. Insbesondere ist es nicht möglich, das Fehlverhalten über einen längeren Zeitraum zu dokumentieren. Darüber hinaus muss in der Fahrbahn eine Induktionsschleife vorhanden sein und das Kamera- und Blitzgerät muss sowohl mit der Induktionsschleife als auch der Ampelsteuerung in Verbindung stehen. Für die Installation eines derartigen Kamera- und Blitzgeräts ist folglich ein zusätzlicher Aufwand nötig.A disadvantage of such camera and flash devices, however, is that a red light violation only at a certain time, to which the vehicle is usually already in the intersection, is documented. In particular, it is not possible to document the misconduct over a longer period of time. In addition, an induction loop must be present in the roadway and the camera and flash unit must be both with the induction loop and the traffic light control keep in touch. For the installation of such a camera and flash unit, therefore, an additional effort is needed.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Möglichkeit zu schaffen, mit möglichst geringem Aufwand eine Nichtbeachtung der Lichtzeichen einer Lichtzeichenanlage, insbesondere über einen längeren Zeitraum, zu dokumentieren.The invention is therefore an object of the invention to provide a way to document with the least possible effort a failure to the light signals of a traffic light system, especially over a longer period of time.
Erfindungsgemäß wird diese Aufgabe für ein Verfahren dadurch gelöst, dass von einem Bilderfassungssystem, insbesondere wenigstens einer Videokamera, kontinuierlich Bilder erfasst und bereitgestellt werden, die Bildpunkte enthalten, die zumindest einem Teil der Straßenstelle und zumindest einem Teil der Lichtzeichenanlage entsprechen, auf der Basis der Bilder ein in die Straßenstelle einfahrendes Fahrzeug und/oder ein Wechsel des Lichtzeichens der Lichtzeichenanlage, insbesondere auf Rot, erkannt wird, und bei Einfahrt eines Fahrzeugs in die Straßenstelle nach dem Zeitpunkt des Wechsels des Lichtzeichens oder nach einem Zeitpunkt, der einen vorgegebenen Abstand zu dem Zeitpunkt des Wechsels des Lichtzeichens aufweist, Bilder abgespeichert werden, die Bildpunkte enthalten, die zumindest einem Teil des Fahrzeugs, insbesondere dem Kennzeichen, entsprechen.According to the invention, this object is achieved for a method in that continuously images are acquired and provided by an image acquisition system, in particular at least one video camera, which contain pixels that correspond to at least part of the street location and at least part of the traffic light system on the basis of the images a vehicle entering the roadway and / or a change in the light signal of the traffic light system, in particular red, and when a vehicle enters the roadside after the time of the change of the light signal or after a time which is a predetermined distance at the time the change of the light signal, images are stored, which contain pixels that correspond to at least a portion of the vehicle, in particular the license plate.
Für eine Vorrichtung wird diese Aufgabe gelöst durch ein Bilderfassungssystem, insbesondere wenigstens eine Videokamera, die zur Erfassung und Bereitstellung von Bildern ausgebildet ist, die Bildpunkte enthalten, die zumindest einem Teil der Straßenstelle und zumindest einem Teil der Lichtzeichenanlage entsprechen, eine mit dem Bilderfassungssystem verbundene Datenverarbeitungseinrichtung, die zur Erkennung eines in die Straßenstelle einfahrenden Fahrzeugs und/oder eines Wechsels des Lichtzeichens der Lichtzeichenanlage, insbesondere auf Rot, auf der Basis der Bilder ausgebildet ist, und die bei Einfahrt eines Fahrzeugs in die Straßenstelle nach dem Zeitpunkt des Wechsels des Lichtzeichens oder nach einem Zeitpunkt, der einen vorgegebenen Abstand zu dem Zeitpunkt des Wechsels des Lichtzeichens aufweist, zur Abspeicherung von Bildern ausgebildet ist, die Bildpunkte enthalten, die zumindest einem Teil des Fahrzeugs, insbesondere dem Kennzeichen, entsprechen, und einen Datenträger, auf dem die abzuspeichernden Bilder abspeicherbar sind.For a device, this object is achieved by an image acquisition system, in particular at least one video camera, which is designed to capture and provide images containing pixels that correspond to at least part of the street location and at least part of the traffic light system, a data processing device connected to the image acquisition system which are used to detect an in the road surface incoming vehicle and / or a change of the light signal of the traffic light system, in particular red, is formed on the basis of the images, and when entering a vehicle in the street after the time of change of the light signal or after a time that a predetermined Distance to the time of the change of the light signal, is designed to store images containing pixels that correspond to at least part of the vehicle, in particular the license plate, and a disk on which the images to be stored can be stored.
Die Erfindung zeichnet sich dadurch aus, dass ein Bilderfassungssystem, insbesondere wenigstens eine Videokamera, vorgesehen ist, das kontinuierlich Bilder erfassen kann. Auf den Bildern sind zumindest ein Teil der zu überwachenden Straßenstelle, in die Kraftfahrzeuge einfahren können, und zumindest ein Teil der Lichtzeichenanlage oder Ampel, insbesondere das Lichtzeichen, dessen Aktivierung das Abspeichern von Bildern auslöst, zu sehen.The invention is characterized in that an image acquisition system, in particular at least one video camera, is provided which can continuously acquire images. At least a portion of the road to be monitored, into which motor vehicles can enter, and at least part of the traffic light system or traffic light, in particular the light signal whose activation triggers the storage of images, can be seen on the images.
Auf der Basis der Bilder kann mittels eines geeigneten, aus dem Stand der Technik bekannten Objekterkennungsverfahrens ein in die überwachte Straßenstelle einfahrendes Fahrzeug erkannt werden. Darüber hinaus kann ein Wechsel des Lichtzeichens der Lichtzeichenanlage, beispielsweise von Grün auf Gelb oder von Gelb auf Rot, erkannt werden. Der Wechsel des Lichtzeichens kann insbesondere über die sich ändernde Intensität der dem Lichtzeichen entsprechenden Bildpunkte der Bilder erkannt werden.On the basis of the images, by means of a suitable object recognition method known from the prior art, a vehicle entering the monitored road spot can be recognized. In addition, a change of the light signal of the traffic light system, for example from green to yellow or from yellow to red, can be detected. The change of the light signal can be recognized in particular by the changing intensity of the light points corresponding pixels of the images.
Die Bilder werden kontinuierlich auf das Einfahren von Fahrzeugen in die Straßenstelle, bevorzugt zumindest aus einer Richtung, und auf einen Wechsel des Lichtzeichens der Lichtzeichenanlage, d.h. insbesondere auf ein Umschalten der Verkehrsampel, hin überwacht. Wird festgestellt, dass nach einem bestimmten Zeitpunkt ein Fahrzeug noch in die Straßenstelle einfährt, werden Bilder abgespeichert, die zumindest einen Teil des Fahrzeugs, insbesondere dessen Kennzeichen, zeigen. Bei dem bestimmten Zeitpunkt kann es sich um den Zeitpunkt des Wechsels des Lichtzeichens, insbesondere von Gelb auf Rot, oder aber auch um einen Zeitpunkt, der einen vorgegebenen Abstand zu dem Zeitpunkt des Wechsels des Lichtzeichens aufweist, handeln. Insbesondere kann der bestimmte Zeitpunkt vor oder nach dem Zeitpunkt des Wechsels des Lichtzeichens liegen. Die abgespeicherten Bilder umfassen bevorzugt zumindest Bilder, die ab dem bestimmten Zeitpunkt über einen bestimmten Zeitraum erfasst werden.The images are continuously focused on the entry of vehicles into the roadside, preferably from at least one direction, and on a change in the light signal of the traffic light system, i. in particular monitored on switching the traffic lights. If it is determined that after a certain point in time a vehicle still enters the roadside, images are stored which show at least a part of the vehicle, in particular its registration number. At the specific time may be the time of change of the light signal, in particular from yellow to red, or else at a time which has a predetermined distance to the time of the change of the light signal, act. In particular, the specific time may be before or after the time of the change of the light signal. The stored images preferably comprise at least images that are acquired over a certain period of time from the specific time.
Zur Erkennung eines in die Straßenstelle einfahrenden Fahrzeugs und/oder eines Wechsels des Lichtzeichens der Lichtzeichenanlage ist eine Datenverarbeitungseinrichtung vorgesehen, die bei einem vorschriftswidrigen Einfahren eines Fahrzeugs in die Straßenstelle die abzuspeichernden Bilder auf dem Datenträger, insbesondere einem nichtflüchtigen Speicher, beispielsweise einer Festplatte, abspeichert. Bevorzugt ist das Bilderfassungssystem wetterfest und passt sich automatisch den jeweils gegebenen Lichtverhältnissen an.For detecting a vehicle entering the roadway and / or a change in the light signal of the traffic light system, a data processing device is provided which stores the images to be stored on the data carrier, in particular a nonvolatile memory, for example a hard disk, if the vehicle enters the roadside irregularly. Preferably, the image capture system is weatherproof and adapts automatically to the given light conditions.
Die einem vorschriftswidrig in die Straßenstelle eingefahrenen Fahrzeug zugeordneten abgespeicherten Bilder umfassen Bildpunkte, die zumindest einem Teil des Fahrzeugs entsprechen, aus denen eine Zuordnung des Fahrzeugs zu einem Fahrzeughalter möglich ist. Insbesondere handelt es sich bei dem Teil des Fahrzeugs um das Kennzeichen des Fahrzeugs. Bevorzugt werden jedoch Bilder abgespeichert, die nicht nur das Kennzeichen, sondern zumindest einen Teil der Straßenstelle mit dem Kraftfahrzeug und den Teil der Lichtzeichenanlage zeigen, der den Wechsel des Lichtzeichens anzeigt. Somit kann insbesondere gleichzeitig einerseits die vorschriftswidrige Einfahrt des Fahrzeugs in die Straßenstelle und andererseits das direkte Ampellicht der Lichtzeichenanlage dokumentiert werden.The stored images assigned to a vehicle which has been retracted incorrectly into the street area comprise pixels which correspond at least to a part of the vehicle from which an assignment of the vehicle to a vehicle owner is possible. In particular, it is at the part of the vehicle to the license plate of the vehicle. However, images are preferably stored that show not only the license plate, but at least a portion of the road area with the motor vehicle and the part of the traffic light system, which indicates the change of the light signal. Thus, on the one hand, in particular, the irregular entry of the vehicle into the street area and, on the other hand, the direct traffic light of the traffic light system can be documented.
Für jedes Fahrzeug, das vorschriftswidrig in die Straßenstelle einfährt, wird folglich ein Videofilm oder eine Bilderserie, die pro Zeiteinheit weniger Bilder umfassen kann als der Videofilm, aufgenommen bzw. aufgezeichnet. Unter einer Einfahrt in die Straßenstelle ist insbesondere zu verstehen, dass das einfahrende Fahrzeug eine auf der Fahrbahn angebrachte Haltelinie oder eine fiktive Linie überfährt bzw. überquert, oder einen gewissen Mindestabstand zu der erfindungsgemäßen Vorrichtung oder einem Bezugspunkt der Straßenstelle über- oder unterschreitet.Consequently, a video film or a series of images, which may comprise fewer images per unit of time than the video film, is recorded for each vehicle that enters the street irregularly. An entry into the street location is to be understood in particular as meaning that the entering vehicle passes over or crosses a stop line or a fictitious line mounted on the roadway, or exceeds or falls below a certain minimum distance from the device according to the invention or a reference point of the roadway.
Aufgrund der Erfindung kann auf eine in der Fahrbahn verlegte Induktionsschleife verzichtet werden, da die Einfahrt eines Fahrzeugs in die Straßenstelle allein mittels des Bilderfassungssystems erkennbar ist. Darüber hinaus kann mittels des Bilderfassungssystems auch ein Wechsel des Lichtzeichens der Lichtzeichenanlage erkannt werden. Mit der Erfindung ist es also möglich, ohne weitere Einrichtungen, wie beispielsweise eine Induktionsschleife oder eine Verbindung zu der Ampelsteuerung, eine Verkehrsüberwachung, insbesondere Rotlichtüberwachung, durchzuführen. Die erfindungsgemäße Vorrichtung kann folglich ohne weitere Maßnahmen oder Vorkehrungen an beliebigen lichtzeichengeregelten Straßenstellen installiert werden.Due to the invention, it is possible to dispense with an induction loop installed in the roadway, since the entry of a vehicle into the roadside can be recognized solely by means of the image acquisition system. In addition, by means of the image acquisition system, a change of the light signal of the traffic light system can be detected. With the invention, it is possible, without further facilities, such as an induction loop or a connection to the traffic light control, a traffic monitoring, in particular red light monitoring to perform. The device according to the invention can therefore without additional measures or precautions may be installed on any road-signaling road-markings.
Vorteilhafte Ausführungsformen der Erfindung sind auch in den Unteransprüchen, der Beschreibung sowie der Zeichnung angegeben.Advantageous embodiments of the invention are also specified in the subclaims, the description and the drawing.
Nach einer besonderen Ausgestaltung der Erfindung werden Bilder, insbesondere ein Videofilm, über einen vorgegebenen Zeitraum, beispielsweise mehrere Sekunden, abgespeichert. Die Aufnahmelänge ist dann für alle Aufnahmen gleich. Alternativ können Bilder aber auch über einen Zeitraum abgespeichert werden, der andauert, bis das Fahrzeug den Sichtbereich des Bilderfassungssystems verlässt. Verschiedene Aufnahmen besitzen dann unterschiedliche Aufnahmelängen, die davon abhängen, wie lange das jeweilige Fahrzeug im Sichtbereich des Bilderfassungssystems verbleibt. Hierdurch kann sichergestellt werden, dass das Verhalten des vorschriftswidrig in die Straßenstelle eingefahrenen Fahrzeugs in zeitlicher Hinsicht vollständig dokumentiert wird.According to a particular embodiment of the invention, images, in particular a video film, are stored over a predetermined period of time, for example several seconds. The recording length is the same for all recordings. Alternatively, however, images can also be stored for a period of time that lasts until the vehicle leaves the viewing area of the image capture system. Different recordings then have different recording lengths, which depend on how long the respective vehicle remains in the field of view of the image acquisition system. In this way it can be ensured that the behavior of the vehicle which has been illegally transported to the roadside is fully documented in terms of time.
Insbesondere können auch Bilder abgespeichert werden, die bereits während einer bestimmten Zeit vor dem Zeitpunkt des Wechsels des Lichtzeichens erfasst wurden. Beispielsweise kann bei einem Wechsel des Lichtzeichens von Gelb auf Rot, durch den das Abspeichern von Bildern ausgelöst werden soll, der letzte Abschnitt der Gelbphase mit abgespeichert werden. Soll das Abspeichern von Bildern durch einen Wechsel des Lichtzeichens von Grün auf Gelb ausgelöst werden, kann der letzte Abschnitt der Grünphase mit abgespeichert werden.In particular, it is also possible to store images which have already been acquired during a specific time before the time of the change of the light signal. For example, in the case of a change of the light signal from yellow to red, by which the storage of images is to be triggered, the last section of the yellow phase can also be stored. If the saving of images is triggered by a change of the light signal from green to yellow, the last section of the green phase can be saved with.
Vorzugsweise werden alle erfassten Bilder temporär zwischengespeichert. Besonders vorteilhaft ist es hierbei, wenn der Zwischenspeicher nach Art einer Endlosschleife kontinuierlich überschrieben wird. Typischerweise kann der Zwischenspeicher eine Speichergröße besitzen, die eine Aufnahmezeit von ca. 10 bis 20 Sekunden erlaubt. Das Bilderfassungssystem befindet sich gewissermaßen in einem permanenten Aufnahmemodus. Falls ein vorschriftswidriges Einfahren eines Fahrzeugs in die Straßenstelle erkannt wird, können die entsprechenden Bilder, insbesondere auch Bilder, die bereits während einer bestimmten Zeit vor dem Zeitpunkt des Wechsels des Lichtzeichens erfasst wurden, dann auf dem Datenträger abgespeichert werden.Preferably, all captured images are temporarily stored temporarily. It is particularly advantageous in this case if the temporary storage is continuously overwritten in the manner of an endless loop. Typically, the cache may have a memory size that allows a recording time of about 10 to 20 seconds. The image capture system is sort of in a permanent capture mode. If an illegal entry of a vehicle is recognized in the street site, the corresponding images, in particular images that have already been detected during a certain time before the date of the change of the light signal, then stored on the disk.
Es ist weiterhin bevorzugt, dass die abgespeicherten Bilder Bildpunkte enthalten, die zumindest einem Teil des Fahrers des Fahrzeugs entsprechen und insbesondere eine Identifikation des Fahrers ermöglichen. Bei einer Auswertung der abgespeicherten Bilder kann hierdurch der zu dem fraglichen Zeitpunkt tatsächlich am Steuer des Fahrzeugs befindliche Fahrer ermittelt werden.It is further preferred that the stored images contain pixels that correspond to at least a portion of the driver of the vehicle and in particular allow identification of the driver. In the case of an evaluation of the stored images, the driver actually located at the wheel of the vehicle at the time in question can thereby be determined.
Des Weiteren kann auf der Basis der Bilder das Kennzeichen automatisiert identifiziert werden. Es ist hierdurch somit nicht notwendig, eine manuelle Auswertung hinsichtlich des Kennzeichens vorzunehmen, um eine Zuordnung des Fahrzeugs zu dem jeweiligen Fahrzeughalter zu ermöglichen. Die jeweiligen Bilder können im Falle einer derartigen automatischen Identifizierung dann unter dem Kennzeichen des Fahrzeugs abgespeichert oder abgelegt werden.Furthermore, the license plate can be identified automatically on the basis of the images. As a result, it is thus not necessary to carry out a manual evaluation with regard to the license plate in order to enable the vehicle to be assigned to the respective vehicle owner. The respective images can then be stored or stored under the license plate of the vehicle in the case of such automatic identification.
Gemäß einer vorteilhaften Ausführungsform der Erfindung wird mit der Erfassung der Bilder die Uhrzeit und/oder das Datum erfasst und den Bildern zugeordnet. Hierdurch wird dokumentiert, zu welcher Uhrzeit und/oder zu welchem Datum die jeweiligen Bilder abgespeichert wurden. Insbesondere kann die erfasste Uhrzeit und/oder das Datum in die jeweils zugeordneten Bilder eingeblendet werden. Zur Zeit- und/oder Datumserfassung kann eine Funkuhr verwendet werden, so dass die Richtigkeit der Uhrzeit und/oder des Datums gewährleistet ist. Die Funkzeiten können dabei in einer Protokolldatei erfasst werden. Anstelle der Funkuhr kann beispielsweise auch eine geeignete Computeruhr verwendet werden.According to an advantageous embodiment of the invention, the time and / or the date is recorded and associated with the images with the capture of the images. This documents at which time and / or on which date the respective pictures were saved. In particular, the recorded time and / or the date can be superimposed into the respectively assigned images. For time and / or date recording, a radio clock can be used, so that the correctness of the time and / or the date is guaranteed. The radio times can be recorded in a log file. Instead of the radio clock, for example, a suitable computer clock can be used.
Weiterer Gegenstand der Erfindung ist ein Computerprogramm mit Programmcode-Mitteln, um das erfindungsgemäße Verfahren durchzuführen, wenn das Programm auf einem Computer ausgeführt wird.Another object of the invention is a computer program with program code means to perform the inventive method when the program is executed on a computer.
Gegenstand der Erfindung ist auch ein Computerprogrammprodukt mit Programmcode-Mitteln, die auf einem computerlesbaren Datenträger gespeichert sind, um das erfindungsgemäße Verfahren durchzuführen, wenn das Computerprogrammprodukt auf einem Computer ausgeführt wird.The invention also relates to a computer program product with program code means which are stored on a computer-readable data carrier in order to carry out the method according to the invention when the computer program product is executed on a computer.
Unter einem Computer wird hierbei eine beliebige Datenverarbeitungsvorrichtung verstanden, mit der das Verfahren ausgeführt werden kann. Insbesondere können diese digitale Signalprozessoren und/oder Mikroprozessoren aufweisen, mit denen das Verfahren ganz oder in Teilen ausgeführt wird.In this case, a computer is understood to mean any data processing device with which the method can be executed. In particular, these may include digital signal processors and / or microprocessors, with which the method is carried out in whole or in part.
Die Erfindung wird im Folgenden beispielhaft unter Bezugnahme auf die Zeichnung beschrieben.The invention will now be described by way of example with reference to the drawings.
Die einzige Figur zeigt eine perspektivische Ansicht einer lichtzeichengeregelten Kreuzung, an der eine erfindungsgemäße Vorrichtung aufgestellt ist.The single FIGURE shows a perspective view of a light-controlled crossing on which a device according to the invention is set up.
Die erfindungsgemäße Vorrichtung 10 umfasst eine Videokamera, deren Sichtbereich 12 auf die zu überwachende Kreuzung gerichtet ist, eine mit der Videokamera verbundene Datenverarbeitungseinrichtung oder einen Computer zur Auswertung von von der Videokamera erfassten und bereitgestellten Bildern, einen Zwischenspeicher, in dem alle erfassten Bilder temporär zwischengespeichert werden, wobei der Zwischenspeicher nach Art einer Endlosschleife kontinuierlich überschrieben wird, und eine Festplatte, auf der abzuspeichernde Bilder abspeicherbar sind. Die vorstehend aufgeführten Bestandteile der erfindungsgemäßen Vorrichtung 10 sind jeweils nicht dargestellt.The
An der durch die erfindungsgemäße Vorrichtung 10 zu überwachenden Kreuzung sind in Längsrichtung pro Fahrtrichtung jeweils eine Ampel 14 und 16 aufgestellt. Die Ampeln der Querrichtung sind der Einfachheit halber weggelassen. Die Ampeln 14 und 16 sowie den Ampeln 14 und 16 zugeordnete Haltelinien 18 und 20 liegen jeweils im Sichtbereich 12 der erfindungsgemäßen Vorrichtung 10.At the intersection to be monitored by the
Im Betrieb erfasst die Videokamera der erfindungsgemäßen Vorrichtung 10 kontinuierlich die Kreuzung inklusive der Haltelinie 18 sowie die Ampel 14, d.h. die von der Videokamera erfassten Bilder enthalten Bildpunkte, die der Kreuzung und der Ampel 14 entsprechen.In operation, the video camera of the
Die Datenverarbeitungseinrichtung der erfindungsgemäßen Vorrichtung 10 kann anhand der durch die Videokamera aufgenommen Bilder einen Wechsel der Lichtzeichen der Lichtzeichenanlage, insbesondere von Gelb auf Rot, erkennen. Darüber hinaus kann die Datenverarbeitungseinrichtung anhand der aufgenommenen Bilder in der Figur nicht dargestellte Fahrzeuge erkennen. Insbesondere kann die Datenverarbeitungseinrichtung erkennen, ob ein in Richtung der Ampel 14 auf die Kreuzung zufahrendes Fahrzeug die Haltelinie 18 überquert. Unter dem Überqueren der Haltelinie 18 soll ein Einfahren in die Kreuzung im Sinne dieser Anmeldung verstanden werden.The data processing device of the
Stellt die Datenverarbeitungseinrichtung nun fest, dass ein Fahrzeug noch in die Kreuzung eingefahren ist, obwohl die Ampel 14 bereits von Gelb auf Rot umgeschaltet hat, so werden ab dem Zeitpunkt des Wechsels des Lichtzeichens von Gelb auf Rot die von der Videokamera erfassten Bilder auf der Festplatte der Vorrichtung 10 abgespeichert. Die Bilder werden dabei über einen Zeitraum abgespeichert, der andauert, bis das Fahrzeug den Sichtbereich 12 der Videokamera verlassen hat.If the data processing device now determines that a vehicle has still entered the intersection, even though the
Zeitgleich mit der Erfassung der Bilder wird mittels einer in der Figur nicht dargestellten Funkuhr der erfindungsgemäßen Vorrichtung 10 die aktuelle Uhrzeit und das aktuelle Datum erfasst und in die abzuspeichernden oder abgespeicherten Bilder eingeblendet. Aus den Bildern kann mittels der Datenverarbeitungseinrichtung das Kennzeichen des Kraftfahrzeugs automatisch identifiziert werden, unter dem die jeweiligen Bilder, die einen Videofilm darstellen, dann abgespeichert werden.At the same time as the acquisition of the images, the current time and the current date are recorded by means of a radio clock, not shown in the figure, of the
Sind die beiden Ampeln 14 und 16 miteinander synchronisiert, d.h. schalten die beiden Ampeln 14 und 16 zeitgleich oder in einem bekannten zeitlichen Abstand zueinander um, so kann durch die erfindungsgemäße Vorrichtung 10 nicht nur der über die Haltelinie 18 in die Kreuzung einfahrende Verkehr, sondern auch der über die Haltelinie 20 in die Kreuzung einfahrende Gegenverkehr überwacht werden. Der Gegenverkehr wird von der erfindungsgemäßen Vorrichtung 10 frontal aufgenommen, wobei die durch die Videokamera erfassten Bilder auch das Gesicht der jeweiligen Fahrer zeigen, so dass eine Identifikation der jeweiligen Fahrer möglich ist. Alternativ kann die erfindungsgemäße Vorrichtung 10 auch nur zur Überwachung des Gegenverkehrs verwendet werden. Bevorzugt ist auf beiden Seiten der Kreuzung eine erfindungsgemäße Vorrichtung angebracht, so dass für beide Fahrtrichtungen jeweils eine Vorderansicht und/oder eine Rückansicht, oder für ein Fahrzeug sowohl eine Vorder- als auch eine Rückansicht verfügbar ist.If the two
- 1010
- Vorrichtung zur RotlichtüberwachungDevice for red light monitoring
- 1212
- Sichtbereich der VideokameraViewing area of the video camera
- 1414
- Ampeltraffic light
- 1616
- Ampeltraffic light
- 1818
- Halteliniestop line
- 2020
- Halteliniestop line
Claims (10)
dadurch gekennzeichnet,
dass Bilder über einen vorgegebenen Zeitraum, beispielsweise mehrere Sekunden, abgespeichert werden, oder
dass Bilder über einen Zeitraum abgespeichert werden, der andauert, bis das Fahrzeug den Sichtbereich (12) des Bilderfassungssystem verlässt.Method according to claim 1,
characterized,
that images are stored over a predetermined period of time, for example several seconds, or
that images are stored for a period of time that lasts until the vehicle leaves the viewing area (12) of the imaging system.
dadurch gekennzeichnet,
dass auch Bilder abgespeichert werden, die bereits während einer bestimmten Zeit vor dem Zeitpunkt des Wechsels des Lichtzeichens erfasst wurden, und /oder
dass alle erfassten Bilder temporär zwischengespeichert werden, wobei der Zwischenspeicher bevorzugt nach Art einer Endlosschleife kontinuierlich überschrieben wird.Method according to one of the preceding claims,
characterized,
that also images are stored that have already been detected during a certain time before the time of the change of the light signal, and / or
that all captured images are temporarily stored, wherein the buffer is preferably overwritten continuously in the manner of an endless loop.
dadurch gekennzeichnet,
dass die abgespeicherten Bilder Bildpunkte enthalten, die zumindest einem Teil des Fahrers des Fahrzeugs entsprechen und insbesondere eine Identifikation des Fahrers ermöglichen.Method according to one of the preceding claims,
characterized,
in that the stored images contain pixels which correspond at least to a part of the driver of the vehicle and in particular enable an identification of the driver.
dadurch gekennzeichnet,
dass auf der Basis der Bilder das Kennzeichen automatisiert identifiziert wird, wobei die jeweiligen Bilder bevorzugt unter dem Kennzeichen des Fahrzeugs abgespeichert werden.Method according to one of the preceding claims,
characterized,
that on the basis of the images the mark is identified automatically, with the respective images preferably are stored under the plate of the vehicle.
dadurch gekennzeichnet,
dass mit der Erfassung der Bilder die Uhrzeit und/oder das Datum erfasst und den Bildern zugeordnet wird, wobei die erfasste Uhrzeit und/oder das Datum bevorzugt in die jeweils zugeordneten Bilder eingeblendet wird, und/oder
dass zur Zeit- und/oder Datumserfassung eine Funkuhr verwendet wird und dass die Funkzeiten in einer Protokolldatei erfasst werden.Method according to one of the preceding claims,
characterized,
that with the capture of the images, the time and / or the date is recorded and assigned to the images, wherein the detected time and / or the date is preferably displayed in the respective associated images, and / or
that a radio clock is used for the time and / or date recording and that the radio times are recorded in a log file.
dadurch gekennzeichnet,
dass ein Zwischenspeicher zur temporären Zwischenspeicherung aller erfassten Bilder vorgesehen ist, und/oder
dass Mittel zur automatisierten Identifizierung des Kennzeichens auf der Basis der abgespeicherten Bilder vorgesehen sind, und/oder
dass Mittel zur Erfassung der Uhrzeit und/oder des Datums, insbesondere eine geeichte Computeruhr oder eine Funkuhr, und Mittel zur Zuordnung der Uhrzeit und/oder des Datums zu den jeweiligen Bildern vorgesehen sind.Device according to claim 9,
characterized,
that an intermediate memory for temporary intermediate storage of all captured images is provided, and / or
in that means are provided for automatically identifying the license plate on the basis of the stored images, and / or
in that means for recording the time and / or the date, in particular a calibrated computer clock or a radio clock, and means for assigning the time and / or the date to the respective images are provided.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005025162A DE102005025162A1 (en) | 2005-06-01 | 2005-06-01 | Traffic-monitoring method for monitoring, especially red-light monitoring, of a street location controlled by lights, especially a crossroads or a road junction uses a video camera system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1732051A1 true EP1732051A1 (en) | 2006-12-13 |
| EP1732051B1 EP1732051B1 (en) | 2008-07-30 |
Family
ID=36763199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06011015A Not-in-force EP1732051B1 (en) | 2005-06-01 | 2006-05-29 | Method and device for traffic surveillance |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1732051B1 (en) |
| AT (1) | ATE403207T1 (en) |
| DE (2) | DE102005025162A1 (en) |
Cited By (3)
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|---|---|---|---|---|
| CN100466009C (en) * | 2007-06-01 | 2009-03-04 | 南京邮电大学 | Detecting device and method for realizing vehicle passing stop-line utilizing stop-line visual frequency signal |
| WO2013159763A3 (en) * | 2012-04-27 | 2013-12-27 | Peter Krumhauer | Optical motor vehicle monitoring system |
| CN115394090A (en) * | 2022-08-25 | 2022-11-25 | 张文馨 | Intersection vehicle passing control method |
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| DE19802811A1 (en) * | 1998-01-27 | 1999-07-29 | Esw Extel Systems Wedel Ges Fu | Traffic red light monitoring system |
| WO2001020581A1 (en) * | 1999-09-14 | 2001-03-22 | Locktronic Systems Pty Ltd | Improvements in image recording apparatus and method |
| US20020141618A1 (en) * | 1998-02-24 | 2002-10-03 | Robert Ciolli | Automated traffic violation monitoring and reporting system |
| US6754663B1 (en) * | 1998-11-23 | 2004-06-22 | Nestor, Inc. | Video-file based citation generation system for traffic light violations |
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|---|---|---|---|---|
| DE9214498U1 (en) * | 1992-10-20 | 1993-01-21 | Deutsche Aerospace Ag, 8000 Muenchen, De | |
| DE19517536A1 (en) * | 1995-05-12 | 1996-11-14 | Wolfgang Dipl Ing Baumert | Video camera device for monitoring traffic at traffic lights controlled road junctions |
| US20030080878A1 (en) * | 2001-10-30 | 2003-05-01 | Kirmuss Charles Bruno | Event-based vehicle image capture |
-
2005
- 2005-06-01 DE DE102005025162A patent/DE102005025162A1/en not_active Withdrawn
-
2006
- 2006-05-29 DE DE502006001213T patent/DE502006001213D1/en active Active
- 2006-05-29 EP EP06011015A patent/EP1732051B1/en not_active Not-in-force
- 2006-05-29 AT AT06011015T patent/ATE403207T1/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19802811A1 (en) * | 1998-01-27 | 1999-07-29 | Esw Extel Systems Wedel Ges Fu | Traffic red light monitoring system |
| US20020141618A1 (en) * | 1998-02-24 | 2002-10-03 | Robert Ciolli | Automated traffic violation monitoring and reporting system |
| US6754663B1 (en) * | 1998-11-23 | 2004-06-22 | Nestor, Inc. | Video-file based citation generation system for traffic light violations |
| WO2001020581A1 (en) * | 1999-09-14 | 2001-03-22 | Locktronic Systems Pty Ltd | Improvements in image recording apparatus and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466009C (en) * | 2007-06-01 | 2009-03-04 | 南京邮电大学 | Detecting device and method for realizing vehicle passing stop-line utilizing stop-line visual frequency signal |
| WO2013159763A3 (en) * | 2012-04-27 | 2013-12-27 | Peter Krumhauer | Optical motor vehicle monitoring system |
| CN115394090A (en) * | 2022-08-25 | 2022-11-25 | 张文馨 | Intersection vehicle passing control method |
| CN115394090B (en) * | 2022-08-25 | 2024-02-06 | 张文馨 | Intersection vehicle passing control method |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1732051B1 (en) | 2008-07-30 |
| DE502006001213D1 (en) | 2008-09-11 |
| DE102005025162A1 (en) | 2006-12-07 |
| ATE403207T1 (en) | 2008-08-15 |
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