EP1803292A1 - Systeme pour l'acquisition et la restitution d'images - Google Patents

Systeme pour l'acquisition et la restitution d'images

Info

Publication number
EP1803292A1
EP1803292A1 EP05787305A EP05787305A EP1803292A1 EP 1803292 A1 EP1803292 A1 EP 1803292A1 EP 05787305 A EP05787305 A EP 05787305A EP 05787305 A EP05787305 A EP 05787305A EP 1803292 A1 EP1803292 A1 EP 1803292A1
Authority
EP
European Patent Office
Prior art keywords
module
messages
patterns
camera module
codes
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.)
Withdrawn
Application number
EP05787305A
Other languages
German (de)
English (en)
Inventor
Roland Schmid
Ulrich Seger
Jens Schick
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1803292A1 publication Critical patent/EP1803292A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/63—Control of cameras or camera modules by using electronic viewfinders
    • H04N23/633—Control of cameras or camera modules by using electronic viewfinders for displaying additional information relating to control or operation of the camera
    • H04N23/634—Warning indications

Definitions

  • the invention relates to a system for capturing and reproducing images according to the preamble of claim 1.
  • the system of the generic type is preferably suitable as a driver assistance system for assisting the driver of a motor vehicle.
  • the invention is not limited to this preferred application, but is suitable for use in all applications in which a video image with symbols and / or texts superimposed and displayed on a display device, in particular a monitor.
  • Such a parking pilot system comprises short-range sensors, which preferably measure the distance to an obstacle by means of ultrasound. Furthermore, a
  • Park pilot system optical and or acoustic signal generator which generate an optical and / or audible warning signal in response to the output signals of the sensors.
  • WO 00/74976 A1 discloses a method and a device for visualization of a track, wherein a guideway of a vehicle to be expected at an unchanged steering angle is displayed in a display in which at least part of the rear travel of a vehicle is displayed. A driver is informed of the expected route, so that he can adjust the chosen steering angle to an obstacle that can be seen in the rear compartment.
  • a parking assist apparatus for taking a picture of a rear side of a vehicle by a camera at a parking operation, displaying an image from the camera on a screen inside the vehicle
  • the parking assist apparatus includes a parking-line instructing means for instructing the vehicle to park along a longitudinal line and an anticipated trajectory-indicating means for displaying the prospective trajectory with a turning point in accordance with the steering wheel angle when the vehicle is instructed by the parking instruction means to park along the longitudinal line ,
  • the camera module has a memory module for storing patterns and / or messages, as well as a function module for superposing an image of an image sensor with patterns and / or messages stored in the memory module.
  • the stored patterns and messages are assigned codes with which the patterns and messages from the memory module can be retrieved. Since these codes are only comparatively short messages, their provision is only connected with a small load on the computer capacity of a control unit cooperating with the camera module.
  • the camera module includes at least one interface each for data exchange with a control unit and a monitor. This allows a simple remote from the control unit and the monitor remote operation of the camera module. The camera module can therefore be optimally arranged in the rear area of a vehicle, for example, for monitoring the rear vehicle environment, while the monitor remains in the field of vision of the driver.
  • the transmission of codes is controlled by output signals of a distance warning device.
  • a video image provided by an image sensor can be overlaid with patterns and messages that facilitate reversing or parking.
  • FIG. 1 is a block diagram of a system for capturing and reproducing images
  • FIG. 3 shows the block diagram of an alternating buffer.
  • the system 1 shows the block diagram of an inventive system for the acquisition and reproduction of images 1.
  • the system 1 comprises a camera module 10, a distance warning device 19, 19A, 19B, a display device, in particular a monitor 18, and a control device 17.
  • the camera module 10 includes an image sensor 11, to which a functional module 12 connects.
  • the functional module 12 is connected to a functional module 13.
  • the functional module 13 is on the one hand with a - A -
  • the functional module 13 is connected to a functional module 15.
  • the functional module 16 comprises an input terminal 16A, via which it is connected to a control unit 17.
  • the functional module 15 comprises an output terminal 15A, via which the camera module 10 can be connected to a monitor 18.
  • the image sensor 11 comprises a photosensitive semiconductor chip, preferably a CCD sensor and an optical module IA, which images scenes from the recording area of the image recording and reproducing system 1 on the semiconductor chip.
  • optical module 1 IA preferably a wide-angle lens with an opening angle of about 100 ° to 120 ° is used.
  • Image sensor 11 provides at its output a raw image that is supplied to the input of the function module 12.
  • the functional module 12 equalizes the raw image provided by the image sensor 11 and supplies a corrected image to the functional module 13.
  • the patterns may be simple geometric structures such as broken and unbroken lines of different widths and colors. These lines may be target and Isttrajektorien and / or distance lines, for example, signal a certain distance to an obstacle.
  • the stored patterns may include warning symbols, pictograms, traffic signs and the like.
  • the stored messages are preferably brief notes and warnings in textual form intended to assist the driver.
  • the messages also include failure messages that indicate errors in the system according to the invention and / or errors in other systems of the vehicle.
  • the memory module 14 includes a standard set of patterns and messages. In an advantageous embodiment, the content of the memory module 14 can be customized.
  • the functional module 13 is connected to the functional module 16.
  • the function module 16 in turn is connected via an input terminal 16A to a controller 17, which controls the function of the camera module 10, as will be described later.
  • the control unit with a distance warning device 19 which also includes a plurality of sensors 19A, 19B.
  • sensors 19A, 19B ultrasonic sensors have been proven in practice. The use of radar and laser sensors is also conceivable.
  • the functional module 13 is connected to a functional module 15, which has an output terminal 15A. About this output terminal 15 A is the camera module 10 with a display device for
  • the main task of the function module 15 is the adaptation of the output signals of the functional module 13 to the particular monitor 18.
  • a color monitor 18 is connected to the NTSC standard.
  • the function module 15 as an interface
  • a particularly advantageous feature of the system 1 according to the invention is that the superposition of the images captured by the image sensor 11 with the patterns and / or messages stored in the memory device is possible by comparatively simple control signals of the control device 17. As a result, the computing power of the controller is not overwhelmed. This is accomplished by assigning to each pattern and message stored in the memory module 14 a one-to-one code deposited in both the controller 17 and the memory device 14. Accordingly, when a particular pattern or message is to be retrieved from the memory device 14, the controller 17 will only send the code corresponding to that pattern or message to the memory device 14 via the functional module 16, the functional module 13. By sending this code, the corresponding pattern or message is provided by the memory device 14 to the functional module 13.
  • the functional module 13 functions as a mixing device in which the equalized image of the image sensor 11 provided by the functional module 12 is superimposed with a pattern or a message provided by the memory device 14. At the output terminal 15A of the camera module 10 is thus provided with a comment image for playback on a monitor 18 ready.
  • the patterns and / or messages to be superimposed on the video image by outputting a code therefore preferably relate to distance information of the vehicle with respect to the vehicle environment.
  • the output of codes may be controlled by other means.
  • signals from a restraint system for vehicle occupants can control the output of codes when danger is present in the vehicle Default is.
  • the message called by the corresponding code can then be superimposed on a video image.
  • information which itself results in the output of a code with subsequent superposition of the video image with a message stored in the memory module 14 can be extracted from the video image generated by the image sensor 11. This is useful, for example, when the image sensor 11 is used as a precrash sensor.
  • a connection line I IB between the image sensor 11 and the control unit 17 may then be provided.
  • a control unit 17 is not required if the distance warning device 19 itself already has an interface which generates corresponding codes. As indicated in FIG. 1 by the connecting line 19C shown in dashed lines, the distance warning device 19 is then connected directly to the functional module 16.
  • the operation of the system 1 for capturing and reproducing images according to the invention will now be described below.
  • the superposition of an image recorded by the image sensor 11 with patterns and / or messages is explained in particular with reference to a concrete example (FIG. 2).
  • the image sensor 11 with the upstream optical module I IA detects a scene from the environment of
  • Vehicle 20 ( Figure 2) and continuously stores the captured image in an input image memory.
  • the image sensor 11 has at least VGA resolution.
  • the input image memory has a storage capacity of around 350 Kbytes.
  • the function module 12 the image is equalized.
  • the equalized image is stored in an output image memory which is stored in a
  • Embodiment preferably has a storage capacity of about 1 MB.
  • the memory module 14 patterns and messages are stored with their associated codes.
  • As a pattern for example, lines of different design and color or more complex symbols are considered.
  • the lines can each be assigned to a steering angle.
  • Embodiment of the invention are assigned 64 values of selected steering angles respectively lines. Other lines are provided for representing distance values or artifacts, such as faded bumper, warning trapezoids, and the like. Furthermore, vehicle symbols, traffic signs and roadway structures can also be stored. Furthermore, messages in text form, such as For example, warnings and warnings, as well as failure messages stored.
  • Figure 2 shows a scene shown on the monitor 18 from the environment of a vehicle 20. The scene shows a demarcated from a wall 24 house 25. A vehicle 20 is just about to park backwards on a parking lot in front of the wall 24. The parking process is monitored by a distance warning device 19 with sensors 19A, 19B (FIG. 1). The video image displayed on the monitor 18 is overlaid with patterns and messages which, together with the codes assigned to them, are shown in the following table.
  • the code "1" corresponds to a rectangular vehicle symbol representing the vehicle 20.
  • the code 2 corresponds to a line 21 superimposed on the monitor 18 at the distance of 6m in front of the wall 24.
  • the code 5 corresponds to the text message "6m", which is faded in to the line 21.
  • the double line 23 and the associated text message "Stop! Signal to the driver of the vehicle 20 that he should bring the vehicle 20 to a halt at this double line 23 so that the latter occupies an optimal parking position
  • the double line 23 and the text message "Stop! are called by codes 4 and 7.
  • the transmission of the various codes is largely determined by output signals of the distance warning device 19, which evaluates the signals of their associated sensors 19A, 19B.
  • Both Sensors 19A, 19B are preferably ultrasonic sensors that measure the distance of the rear of the vehicle 20 from the wall 24.
  • the line 21, 22, 23 and the associated text messages can be displayed, for example, when the sensors 19A, 19B have measured a corresponding distance.
  • the patterns and messages can be varied stored in the memory module 14 and called by associated codes.
  • the lines 21, 22, 23 can be displayed in different line types as solid lines, dotted lines or dashed lines.
  • the lines can be shown in different widths or in different colors.
  • different patterns and messages can be arbitrarily linked. All these measures are controllable by associated codes.
  • the control unit 17 Because the control unit 17 only has to provide codes which are available to the transmitted codes corresponding patterns and messages but retrievable from the memory module 14 in the camera module 10, the control unit 17 itself comes with a greatly reduced computer power.
  • the codes are stored asynchronously in a swap buffer 30 (FIG. 3), which comprises a read buffer 32,31 and a write buffer 32,31.
  • the read and write buffers 32, 31 each receive 32 codes.
  • the write buffer 31 is filled via the input 16A.
  • the change between read and write buffer is advantageously also controlled by a special code.
  • the read buffer 32 is read synchronously.
  • the superimposition of the video image provided by the image sensor 11 with the codes and / or messages retrievable by codes is effected as follows.
  • the image generated by the image sensor 11 is continuously written in an input memory.
  • the function module 12 With the help of the function module 12, the image is equalized and converted into an output image.
  • the codes stored there are successively read from the read buffer 32.
  • the patterns and / or messages corresponding to the read-out codes are retrieved from the memory module 14 and superimposed in the function module 13 with the output image.
  • the function module 15 provides the image data for display on the monitor 18.
  • the camera module 10 is locally remote from the controller 17 and the monitor 18 operable. This is particularly useful when using the system 1 as a driver assistance system, in which the camera module is arranged in the rear region of a vehicle 20 such that the rear traffic space can be monitored while the monitor 18 is arranged in the driver's field of vision.
  • the control unit 17 can then be placed anywhere in the vehicle.
  • the camera module 10 has at least one respective interface 15, 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Traffic Control Systems (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

L'invention concerne un système (1) servant à l'acquisition et à la restitution d'images, comportant un module de caméra (10) pourvu d'un détecteur d'images (11), un dispositif de restitution (18) et un appareil de commande (17). Le module de caméra (10) comprend un module de mémoire (14) servant à la mémorisation de motifs et de messages, ainsi qu'un module fonctionnel (13) pour la surimpression de motifs et/ou de messages, mémorisés dans le module de mémoire (14), sur une image du détecteur d'images (11).
EP05787305A 2004-10-13 2005-08-31 Systeme pour l'acquisition et la restitution d'images Withdrawn EP1803292A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004049872A DE102004049872A1 (de) 2004-10-13 2004-10-13 System für die Erfassung und Wiedergabe von Bildern
PCT/EP2005/054286 WO2006040218A1 (fr) 2004-10-13 2005-08-31 Systeme pour l'acquisition et la restitution d'images

Publications (1)

Publication Number Publication Date
EP1803292A1 true EP1803292A1 (fr) 2007-07-04

Family

ID=35229970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05787305A Withdrawn EP1803292A1 (fr) 2004-10-13 2005-08-31 Systeme pour l'acquisition et la restitution d'images

Country Status (5)

Country Link
US (1) US20080036878A1 (fr)
EP (1) EP1803292A1 (fr)
CN (1) CN101040516A (fr)
DE (1) DE102004049872A1 (fr)
WO (1) WO2006040218A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006019726A1 (de) * 2006-04-27 2007-10-31 Siemens Ag Bildsensor, digitale Kamera und Fahrzeug
DE102006052779A1 (de) * 2006-11-09 2008-05-15 Bayerische Motoren Werke Ag Verfahren zur Erzeugung eines Gesamtbilds der Umgebung eines Kraftfahrzeugs
US8903553B1 (en) 2009-05-01 2014-12-02 Comverge, Inc. Method and system for controlling unitary air conditioners for reducing peak loads
US8239068B1 (en) 2009-06-26 2012-08-07 Comverge, Inc. Method and system for cooperative powering of unitary air conditioners
DE102011080582A1 (de) * 2011-08-08 2013-02-14 Robert Bosch Gmbh Bilderfassungsvorrichtung
DE102011121285A1 (de) * 2011-12-15 2013-06-20 Gm Global Technology Operations, Llc Einparkhilfe
CN102938832B (zh) * 2012-10-12 2016-08-24 广东丰诺汽车安全科技有限公司 一种信息显示系统
US20140327775A1 (en) * 2013-12-04 2014-11-06 Kyu Hwang Cho Mirrorless Driving of Automotive Vehicle Using Digital Image Sensors and Touchscreen
CN105984378A (zh) * 2015-04-14 2016-10-05 智车优行科技（北京）有限公司 一种汽车语音提示系统

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JP4096445B2 (ja) * 1999-03-31 2008-06-04 アイシン精機株式会社 駐車補助装置
EP2285093A3 (fr) * 1999-05-28 2011-07-06 Sony Corporation Dispositif de prise d'images
DE19925584A1 (de) * 1999-06-04 2000-12-21 Bosch Gmbh Robert Verfahren zur Fahrwegvisualisierung und Vorrichtung
US6411867B1 (en) * 1999-10-27 2002-06-25 Fujitsu Ten Limited Vehicle driving support system, and steering angle detection device
DE10109680B4 (de) * 2000-02-29 2009-02-26 Aisin Seiki K.K., Kariya Einparkhilfsgerät und Einparkhilfsverfahren für ein Fahrzeug
US7148914B2 (en) * 2001-04-25 2006-12-12 Hewlett-Packard Development Company, L.P. Method and apparatus for providing subimages to remote sites
JP3812824B2 (ja) * 2002-03-12 2006-08-23 カシオ計算機株式会社 撮像装置、合焦状況表示方法及びプログラム
JP2003329462A (ja) * 2002-05-08 2003-11-19 Hitachi Ltd 映像配信装置および映像情報配信システム

Non-Patent Citations (1)

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Title
See references of WO2006040218A1 *

Also Published As

Publication number Publication date
WO2006040218A1 (fr) 2006-04-20
US20080036878A1 (en) 2008-02-14
CN101040516A (zh) 2007-09-19
DE102004049872A1 (de) 2006-04-20

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