JP2005300342A - Road information display controller - Google Patents

Road information display controller Download PDF

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Publication number
JP2005300342A
JP2005300342A JP2004116758A JP2004116758A JP2005300342A JP 2005300342 A JP2005300342 A JP 2005300342A JP 2004116758 A JP2004116758 A JP 2004116758A JP 2004116758 A JP2004116758 A JP 2004116758A JP 2005300342 A JP2005300342 A JP 2005300342A
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Japan
Prior art keywords
road
information
camera
display
vehicle
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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Withdrawn
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JP2004116758A
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Japanese (ja)
Inventor
Akihito Kimata
Akio Takahashi
亮人 木俣
昭夫 高橋
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Honda Motor Co Ltd
本田技研工業株式会社
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Priority to JP2004116758A priority Critical patent/JP2005300342A/en
Publication of JP2005300342A publication Critical patent/JP2005300342A/en
Application status is Withdrawn legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To provide a road information display control device that can be controlled so that a driver can easily recognize necessary information, can reduce work burden, and can improve convenience.
A road information display control device 4 for storing road signs or road guidance information in map information and displaying them on a display device 6 when they fall within a predetermined range in front of the vehicle, and a vehicle A camera 3 that captures a road sign or a road guide board posted in front, image processing devices 11 and 12 that analyze the display contents of the captured image, and a camera image display device 5 that can display the image. And a comparison means 13 for comparing the road sign or road guide plate analyzed by the image processing device with the road sign or road guide information stored in the road information display control device 6 corresponding to these positions.
[Selection] Figure 1

Description

  The present invention relates to a road information display control device used when road information such as a road sign or a road guide board is displayed on a display device in a vehicle.

In recent years, a technique for mounting a camera on a vehicle and displaying information captured by the camera on a display device in the vehicle is known.
For example, Patent Document 1 proposes an information presentation device that extracts and displays a video such as a road guide plate or a parking lot guide plate from an image taken by an in-vehicle camera.
Japanese Patent Application Laid-Open No. 11-66491

  However, in the conventional technology, when there are a plurality of display objects such as a signboard and a guide board, a plurality of display objects are simultaneously displayed on the same screen or displayed while switching the screen. There is a problem that it is difficult for the driver to find the target display object from the display screen.

  In addition, if a lot of unnecessary information is displayed on the screen, the driver often looks at the screen in order to find the target display object from the display screen, and the work load is large and the convenience is impaired. The problem arises.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a road information display control device that can perform control so that a driver can easily recognize necessary information, and can reduce work burden and improve convenience. And

  In the invention according to claim 1, the road sign or road guidance information is added to the map information and stored, and when the road sign or the road guidance information falls within a predetermined range in front of the vehicle, the road sign Alternatively, a road information display control device (for example, the navigation device 4 in the embodiment) that displays the road guidance information on a display device (for example, the navigation display 6 in the embodiment) provided in the vehicle, and posted in front of the vehicle. A camera that captures a road sign or a road information board (for example, the in-vehicle camera 3 in the embodiment) and an image processing device that analyzes the display content of the road sign or the road information board from the image captured by the camera (for example, The direction display information recognition unit 11 and the character information extraction unit 12) in the embodiment can display images captured by the camera. Camera image display device (for example, HUD 5 in the embodiment), a road sign or road guide plate analyzed by the image processing device, and the road information display control device corresponding to the position of the road sign or road guide plate Comparing means (for example, the comparison / determination unit 13 in the embodiment) for comparing the road sign or the road guidance information stored in the information is provided.

  According to this invention, when the road sign or the road guidance information stored in the road information display control device falls within a predetermined range in front of the vehicle, the road sign or the road guidance information is displayed on the display device. And driving guidance to the driver. At this time, when the road sign or road guide plate posted in front of the vehicle is imaged by the camera, the display content of the road sign or road guide plate is analyzed from the captured image by the image processing device. Then, by comparing the analyzed road sign or road guide plate with the road sign or road guide information stored in the road information display control device corresponding to the analyzed road sign or road guide board, the comparison result is obtained. If they are different, it is possible to perform control so that the driver can recognize the image captured by the camera, so that the workload on the driver can be reduced and convenience can be improved.

  The invention according to claim 2 is the one according to claim 1, wherein when the information compared by the comparison means is different, the road sign or road guide plate analyzed by the image processing device is used as the camera. It is characterized by being displayed on an image display device.

  According to this invention, the driver looks at the road sign or the road guide plate displayed on the camera image display device, so that the road sign or the road guide plate within the predetermined range in front of the vehicle is displayed. It can be easily recognized. In addition, the driver who viewed the road sign or the road guide plate displayed on the camera image display device is different from the actual road sign or the road guide information stored in the road information display control means. I can grasp that. Therefore, even if the road sign or road guide information displayed on the display device is different from the road sign or road guide plate displayed on the camera image display device, the driver is correct without paying special attention. The road sign or road guidance information can be obtained from the display device.

According to the first aspect of the present invention, when the comparison result compared by the comparison means is different, it is possible to control so that the driver can recognize the image captured by the camera, so that the work load is reduced. And convenience can be improved.
According to the second aspect of the invention, the driver can accurately recognize the road sign or the road guide information without paying particular attention, and the convenience can be further improved.

Hereinafter, a road information display control device according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram of a road information display control apparatus according to an embodiment of the present invention.
A road information display control device 1 shown in FIG. 1 includes a vehicle-mounted camera 3 that can capture an area in front of the vehicle, a navigation device 4 that provides vehicle travel guidance, and a HUD (Head) that displays an image captured by the vehicle-mounted camera 3. Up Display) 5 and a control unit 10 that displays an image captured by the in-vehicle camera 3 on the HUD 5 or prohibits the display thereof.

The in-vehicle camera 3 is mounted at the center position above the front window of the vehicle so that the area in front of the vehicle can be imaged (see FIG. 5).
A navigation display 6 is connected to the navigation device 4. The navigation display 6 displays traffic information and guidance information (see FIG. 3B) stored in the navigation device 4 (see FIG. 3A).
And HUD5 is installed in the position which does not block the front field of vision of the driver of a front window.

  A control unit 10 is connected to the in-vehicle camera 3, the navigation device 4, and the HUD 5. The control unit 10 receives image data captured by the in-vehicle camera 3 and information signals stored in the navigation device 4.

  The control unit 10 compares the direction display information recognition unit 11 and the character information extraction unit 12 that analyze the image data captured by the in-vehicle camera 3, and the signboard information stored in the navigation device 4 and the analyzed image data. And a display control unit 14 for controlling display or prohibition of an image on the HUD 5. These controls will be described with reference to FIG.

  FIG. 2 is a flowchart showing a display determination process for the HUD 5. First, in step S12, an image of the vehicle front area is taken by the in-vehicle camera 3 (see FIG. 4A). In step S14, the captured image data is analyzed. Specifically, the direction display information recognition unit 11 recognizes the direction display information in the image data. Further, the character information extraction unit 12 extracts character information from the image data (see FIG. 4B).

In step S16, based on the analysis result of the image data, it is determined whether or not the sign 8 indicating a road sign or road guidance information is included in the image data. When the determination result is “YES”, the process proceeds to step S18, and when the determination result is “NO”, the process returns to step S12.
In step S18, the signboard information in the analyzed image data and the information corresponding to the signboard information stored in the navigation device 4 are compared by the comparison / determination unit 13, and the information is different. Determine whether.

That is, the character information extracted from the image data and the recognized direction display information are used as character data and direction data (see FIG. 3B) of signboard information (see FIG. 3A) stored in the navigation device 4. Each is compared and the presence or absence of a difference is determined.
If the determination result in step S18 is “YES”, the process proceeds to step S20. If the determination result is “NO”, the process returns to step S12.
In step S20, the signboard information is enlarged and displayed on the HUD 5. And it returns to the process after step S12 shown first again.

  Thus, when the signboard information stored in the navigation device 4 and the signboard information captured by the in-vehicle camera 3 are different, the signboard information stored in the navigation device 4 is displayed as shown in FIG. 6, the signboard information captured by the in-vehicle camera 3 is enlarged and displayed on the HUD 5. Thereby, the driver | operator can recognize easily the signboard information in the predetermined range ahead of the said vehicle by seeing the signboard information displayed on HUD5.

  In addition, the driver who has viewed the signboard information displayed on the HUD 5 can recognize that the signboard information stored in the navigation device 4 is different from the actual one. Therefore, even if the signboard information displayed on the display 6 of the navigation device 4 and the signboard information displayed on the HUD 5 are different, the driver can obtain correct signboard information from the HUD 5 without paying particular attention. Moreover, since it is sufficient to look at the display of the navigation device at the same time, driving can be performed comfortably and convenience can be improved.

  Of course, the contents of the present invention are not limited to the above-described embodiments. For example, when the signboard information stored in the navigation device 4 is different from the signboard information captured by the in-vehicle camera 3, the signboard information captured by the in-vehicle camera 3 is used as the signboard stored in the navigation device 4. Information may be overwritten. In this way, the signboard information stored in the navigation device 4 can be sequentially updated to the latest information, so that the navigation function can be improved.

  In the above-described embodiment, the captured signboard information is displayed on the HUD 5 only when the signboard information stored in the navigation device 4 and the signboard information captured by the in-vehicle camera 3 are different. However, the present invention is not limited to this, and the size of the display screen of the HUD 5 may be changed depending on whether the comparison results match or not.

  In the above-described embodiment, the case of displaying a sign for road signs or road guidance information has been described. However, the present invention can also be applied to road information displayed on the road itself or road information posted around the road. it can. Moreover, the vehicle-mounted camera 3 may be either a visible camera or an infrared camera, or one or both of them.

It is a whole lineblock diagram of a road information display control device in an embodiment of the invention. It is a flowchart which shows the HUD display determination process in the road information display control apparatus shown in FIG. It is explanatory drawing about the signboard information (the figure (a)) displayed on the display of the navigation apparatus shown in FIG. 1, and the data (the figure (b)) about this signboard information. It is explanatory drawing about the signboard information (the figure (a)) imaged with the vehicle-mounted camera shown in FIG. 1, the character information extracted from the signboard information, and the recognized direction display information (the figure (b)). . It is a perspective view of the vehicle carrying the road information display control apparatus shown in FIG. It is explanatory drawing about the visual field seen from the driver's seat in the vehicle of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Road information display control apparatus 3 ... Car-mounted camera (camera)
4. Navigation device (road information display control device)
5 ... HUD (camera image display device)
6. Navigation display (display device)
11: Direction display information recognition unit (image processing apparatus)
12 ... Character information extraction unit (image processing apparatus)
13: Comparison determination unit (comparison means)

Claims (2)

  1. The road information or road guidance information is added to the map information and stored, and when the road sign or the road guidance information falls within a predetermined range in front of the vehicle, the road sign or the road guidance information is stored in the vehicle. A road information display control device for displaying on a display device provided;
    A camera for imaging a road sign or road information board posted in front of the vehicle;
    An image processing device for analyzing the display content of a road sign or a road guide board from an image captured by the camera;
    A camera image display device capable of displaying an image captured by the camera;
    Comparing means for comparing the road sign or road guide plate analyzed by the image processing device with the road sign or road guide information stored in the road information display control device corresponding to the position of the road sign or road guide plate A road information display control device comprising:
  2. 2. The road information according to claim 1, wherein when the information compared by the comparison means is different, a road sign or a road guide board analyzed by the image processing device is displayed on the camera image display device. Display control device.
JP2004116758A 2004-04-12 2004-04-12 Road information display controller Withdrawn JP2005300342A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007147521A (en) * 2005-11-29 2007-06-14 Aisin Aw Co Ltd Vehicle travel auxiliary system
JP2007183764A (en) * 2006-01-05 2007-07-19 Hitachi Ltd Onboard equipment
JPWO2008099483A1 (en) * 2007-02-15 2010-05-27 パイオニア株式会社 Display control apparatus, display control method, display control program, and recording medium
KR101399786B1 (en) * 2010-09-27 2014-05-27 주식회사 만도 Automatic parking system and traffic signal alarm method by the same
CN105365672A (en) * 2015-11-17 2016-03-02 上海小糸车灯有限公司 Back-running display device of automobile
CN105539291A (en) * 2015-12-29 2016-05-04 王勇竞 Vehicle-mounted head-up display equipment
JP2016158186A (en) * 2015-02-26 2016-09-01 カシオ計算機株式会社 Imaging device, imaging method, imaging program

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007147521A (en) * 2005-11-29 2007-06-14 Aisin Aw Co Ltd Vehicle travel auxiliary system
JP2007183764A (en) * 2006-01-05 2007-07-19 Hitachi Ltd Onboard equipment
JPWO2008099483A1 (en) * 2007-02-15 2010-05-27 パイオニア株式会社 Display control apparatus, display control method, display control program, and recording medium
KR101399786B1 (en) * 2010-09-27 2014-05-27 주식회사 만도 Automatic parking system and traffic signal alarm method by the same
JP2016158186A (en) * 2015-02-26 2016-09-01 カシオ計算機株式会社 Imaging device, imaging method, imaging program
US10204276B2 (en) 2015-02-26 2019-02-12 Casio Computer Co., Ltd. Imaging device, method and recording medium for capturing a three-dimensional field of view
CN105365672A (en) * 2015-11-17 2016-03-02 上海小糸车灯有限公司 Back-running display device of automobile
CN105539291A (en) * 2015-12-29 2016-05-04 王勇竞 Vehicle-mounted head-up display equipment

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Effective date: 20070703