JP2010160606A - Information presentation system for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a driver to temporarily match the focal points of the eyes with the warning mark in order to view the mark, and then reliably match the focal points of the eyes with the pedestrian when directing his or her line of sight to the pedestrian, in a vehicle loaded with an information presentation system for a vehicle including an imaging camera which images the front of a vehicle, an ECU which detects a pedestrian existing in front of the vehicle based on the pickup image of the imaging camera and a display device for displaying a warning mark on a front window by receiving a command from the ECU. <P>SOLUTION: In an ECU, when a pedestrian 100 is detected, a warming mark 3 is displayed in the neighborhood of the lower side of the pedestrian 100 when viewed from the driver of the vehicle in order to call the vehicle driver's attention to the pedestrian 100, and the mark 3 is gradually moved from the lower side to the upper side so as to be made close to the pedestrian 100 so that the focal points of the eyes of the driver can be matched with the pedestrian 100. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention belongs to a technical field related to an information presentation system for a vehicle provided with information display means for displaying a predetermined mark for driving assistance superimposed on a landscape seen from a driver of the vehicle.

  Conventionally, as a vehicle information presentation system that displays information on a predetermined object that can be seen by the driver on the windshield (head-up display) of the vehicle, from the viewpoint of driving assistance, the object information can be displayed. An ingenious one is known.

  For example, in the driving support system shown in Patent Document 1, when an object ahead of the vehicle is detected, the object information is displayed larger than the object as viewed from the driver, and thereafter the display size is gradually increased. It is configured to be reduced and finally superimposed on the object. This makes it easy for the driver to grasp the relationship between the displayed object information and the object.

For example, in the driving support system shown in Patent Literature 2, when it is estimated that the object information is superimposed on the object as seen from the driver and the driver recognizes the content of the object information, The display brightness of the object information is lowered or the display position is changed. This reduces the annoyance that the driver feels when the information is continuously displayed after the object information is recognized.
JP 2005-346177 A JP 2005-135037 A

  However, in the conventional vehicle information presentation systems shown in Patent Document 1 and Patent Document 2, since the object information displayed on the windshield is superimposed on the object, the driver views the object information and Even if an attempt is made to move the line of sight to the object after recognizing the information, there is a problem that the amount of movement of the viewpoint located ahead of the driver's line of sight is reduced and it is difficult to focus the eye on the object.

  Therefore, it may be possible to display the object information away from the object. In this case, however, the display position of the object information must be sufficiently separated from the object in order to secure the movement amount of the driver's viewpoint. As a result, there is a problem that it becomes difficult for the driver to determine which object the displayed object information corresponds to.

  The present invention has been made in view of such a point, and the object of the present invention is to display the object information by devising the configuration of the vehicle information presentation system. After the eye is focused on this display in order to see the image, the eye is intended to be surely focused on the object when the line of sight is directed toward the object.

  In order to achieve the above object, according to the present invention, when an object is detected by the object detection means, a predetermined mark is placed on the vehicle to alert the vehicle driver to the object. It is displayed at a position superimposed on the object as viewed from the person or a peripheral position thereof, and then the display mode of the mark is changed so that the driver's eyes are focused on the object.

  According to the first aspect of the present invention, there is provided a vehicle information presentation system provided with information display means for displaying a predetermined mark for driving support in a superimposed manner in a landscape seen from the driver of the vehicle.

  And an object detection means for detecting a predetermined object outside the vehicle, wherein the information display means detects the predetermined object when the object detection means detects the predetermined object. In order to alert the driver of the vehicle, the mark is displayed by a warning display means for displaying the mark at a position superimposed on the object as viewed from the driver or a peripheral position thereof, and the warning display means. Focus adjustment means for changing the display mode of the mark so that the focus of the driver's eyes is aligned with the predetermined object detected by the object detection means after being displayed. It shall be.

  According to this configuration, when an object is detected by the object detection means, a predetermined mark is displayed at a position where the mark is superimposed on the object (pedestrian or the like) or its peripheral position, and the driver's line of sight is displayed. Attention to the object is drawn by heading to the mark. Thus, after the driver's line of sight faces the mark, the display mode (position, size, shading, etc.) of the mark changes so that the driver's eyes are focused on the object. As a result, the driver can smoothly move the focus of the eye from the mark to the object. In addition, as an information display means, the head-up display etc. which have a display part in window glass, for example are employable.

  According to a second aspect of the present invention, in the first aspect of the invention, when the predetermined target object is detected by the target object detecting means, the warning display means is configured so that the driver of the vehicle with respect to the target object In order to call attention, the mark is displayed near the lower side of the object when viewed from the driver, and the focus adjusting means is configured to display the mark by the warning display means. In this case, it is assumed that the mark is moved upward so that the focus of the driver's eyes matches the predetermined object detected by the object detection means.

  According to this configuration, when an object is detected by the object detection means, a mark is displayed near the lower side of the object as viewed from the driver to alert the driver to the object. Then, the displayed mark moves from the lower side to the upper side so that the focus of the driver's eye is on the object. In general, humans have the habit of changing their line-of-sight direction from the lower side to the upper side when focusing the eye from a nearby object to a distant object. Therefore, as in the present invention, the mark is changed from the lower side. By moving to the upper side, the driver's line of sight changes from the lower side to the upper side, and the focus of the eyes changes from the mark (that is, a nearby object) displayed on the window glass or the like to the object (that is, a far object). Can be moved easily.

  According to a third aspect of the present invention, in the second aspect of the present invention, when the mark is moved upward, the focus adjusting means is configured to reduce its size in accordance with the upward movement of the mark. It shall be.

  According to this configuration, when the mark moves from the lower side to the upper side in order to focus the driver's eyes on the object, the size of the mark is reduced as the mark moves upward. . In general, human beings have the habit of recognizing objects that look smaller as objects that are farther away. Therefore, as the present invention moves the mark upwards, the focus of the driver's eyes is reduced by windshields or the like. It is possible to easily move the mark displayed on (i.e., a nearby object) to the object (i.e., a distant object).

  According to a fourth aspect of the present invention, in the second or third aspect of the present invention, the focus adjusting means may be configured to hide the mark when the mark reaches a predetermined position by moving the mark upward. It shall be configured.

  Thus, by finally eliminating the mark display, the focus of the driver's eyes can be reliably moved from the mark to the object.

  According to a fifth aspect of the present invention, in the first aspect of the invention, when the predetermined object is detected by the object detection means, the attention display means is a vehicle driver's attention to the object. The mark is displayed so as to be superimposed on the object when viewed from the driver, and the focus adjustment unit is configured to display the mark after the attention display unit displays the mark. The mark is displayed as an annular line superimposed on the object as viewed from the driver so that the focus of the driver's eye is aligned with the predetermined object detected by the object detection means. Then, after the display, the diameter of the annular line is gradually increased so as to be displayed so as to surround the object.

  According to this configuration, when the object is detected by the object detection means, the mark is superimposed on the object as viewed from the driver so as to alert the driver of the vehicle to the object. After that, the displayed mark becomes an annular line and gradually expands in diameter to surround the object. In general, humans tend to focus on objects that are visible inside the circular line, so that, as in the present invention, a mark that is displayed to alert the driver is then an annular line. By doing so, the driver can reliably focus the eye on the object that is visible inside the annular line.

  In addition, a visual effect can be obtained as if the object seen inside gradually expands by expanding the diameter of the annular line, which makes it easier for the driver to focus on the object. Furthermore, since the annular line is finally displayed so as to surround the object, it does not overlap with the object. Therefore, it is possible to reliably prevent the driver's eyes from being focused on the object while being on the mark.

  According to a sixth aspect of the present invention, in the fifth aspect of the present invention, when the inner diameter of the focus adjusting means reaches a predetermined dimension by expanding the diameter of the mark as an annular line, the thickness of the line is gradually increased. It is assumed to be configured to be thin.

  In this way, by finally reducing the thickness of the annular line displayed as a mark so as to be inconspicuous, the focus of the driver's eyes can be smoothly moved from the mark to the object.

  According to a seventh aspect of the present invention, in the fifth aspect of the present invention, when the inner diameter dimension of the focus adjusting means reaches a predetermined dimension by expanding the diameter of the mark as an annular line, the mark is not displayed. It is assumed that

  Thus, by finally eliminating the mark display, the focus of the driver's eyes can be reliably moved from the mark to the object.

  According to an eighth aspect of the present invention, in the first aspect of the present invention, when the predetermined object is detected by the object detection means, the warning display means is configured so that the driver of the vehicle with respect to the object In order to call attention, the mark is displayed as an annular line surrounding the object when viewed from the driver, and the focus adjusting means is configured to display the mark by the warning display means. When the mark is gradually reduced in diameter so that the focus of the driver's eyes matches the predetermined object detected by the object detection means, and the inner diameter thereof reaches a predetermined dimension. It is assumed that the mark is not displayed.

  According to this configuration, when the object is detected by the object detection means, the mark surrounds the object as viewed from the driver so as to call the vehicle driver's attention to the object. It is displayed by a line, and then gradually decreases in diameter and finally disappears. In general, humans tend to focus on objects that appear inside the circular line, and as described above, the behavior of recognizing large objects as nearby objects and small objects as distant objects. There is. Therefore, by displaying the mark with an annular line as in the present invention, the driver can surely focus the eye on the object visible inside the annular line, and gradually reduce the diameter of the annular line. In other words, by reducing the size, the focus of the driver's eyes can be easily moved from the mark (that is, a nearby object) displayed on the window glass or the like to the object (that is, a far object).

  Further, by finally eliminating the mark display, it is possible to prevent the mark from remaining superimposed on the object, and to reliably move the focus of the driver's eyes from the mark to the object. .

  As described above, according to the vehicle information presentation system of the present invention, when a predetermined object is detected by the object detection means, the predetermined information is given to alert the driver of the vehicle to the object. The mark is displayed at a position superimposed on the object as viewed from the vehicle driver or a position around the object, and then the display mode of the mark is changed so that the driver's eyes are focused on the object. By doing so, when the driver focuses the eye on the display once to see the display of the object information, the driver is sure to focus the eye on the object. Can be matched.

(Embodiment 1)
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a vehicle A equipped with a vehicle information presentation system 1 according to an embodiment of the present invention. The system 1 is a predetermined object in front of the vehicle (in this embodiment, a pedestrian 100). 3) and a warning mark 3 is displayed on the front window 2 of the vehicle A so that the driver M can recognize its presence. The predetermined object is not limited to the pedestrian 100 but may be an object that the driver M should pay attention to when driving the vehicle A, such as another vehicle, a two-wheeled vehicle, a traffic light, or a sign. .

  The vehicle information presentation system 1 includes a stereo camera 4 that is disposed in the center in the vehicle width direction (near the room mirror) in the front part of the passenger compartment and images the front of the vehicle, and a gaze direction detection that detects the gaze direction of the driver M. An ECU 7 that executes various calculations based on the image information captured by the device 5 (see FIG. 2), the image information captured by the stereo camera 4 and the line-of-sight information detected by the line-of-sight direction detection device 5, and receives commands from the ECU 7 And a display device 6 for displaying the warning mark 3 on the front window 2.

  The stereo camera 4 is composed of a pair of left and right cameras 4L and 4R composed of a digital camera (for example, a CMOS camera or a CCD camera) having an image sensor, and each of the cameras 4L and 4R images a landscape in front of the vehicle. Images are taken so that the areas overlap. Each of the cameras 4L and 4R outputs an image captured by each of the cameras 4L and 4R to the ECU 7 as digital image data. In the following description, an image captured by the left camera 3L is referred to as a left camera image GL, and an image captured by the right camera 3R is referred to as a right camera image GR.

  The line-of-sight direction detection device 5 includes an indoor camera 8 disposed near the rear-view mirror in the front of the passenger compartment so as to face the driver M. The face image of the driver M captured by the indoor camera 8 is displayed. Based on this, the line-of-sight direction of the driver M is calculated (estimated), and for example, a known configuration disclosed in JP-A-2002-19491 can be employed.

  The display device 6 reflects the image projected from the projector 6a disposed in the dashboard 9 on the reflection plate 6b and displays it on the head-up display (in this embodiment, the front window 2). The image is displayed so as to be visible to the driver M so as to be superimposed on the scenery in front of the vehicle (see, for example, JP 2000-203309 A). As the display device 6, a windshield display (for example, see 2001-108476) may be adopted.

  As shown in FIG. 2, the ECU 7 includes left and right camera image storage units 11L and 11R, an object detection processing unit 12, an object distance calculation processing unit 13, a risk determination processing unit 14, and a display control unit. 15.

  The left and right camera image storage units 11L and 11R receive and store image data output from the left and right cameras 4L and 4R, respectively. This image data consists of the coordinate position (x, y) on the image plane of each pixel constituting each camera image GR, GL and the luminance information of each pixel.

  The object detection processing unit 12 detects the pedestrian 100 displayed in the right camera image GR based on the image data stored in the right camera image storage unit 11R. This detection process of the pedestrian 100 is performed by executing a pattern matching process on the right camera image GR based on a template image of a pedestrian (object) stored in advance.

  The object distance calculation processing unit 13 calculates the distance from the vehicle A of the pedestrian 100 detected by the object detection processing unit 12. Specifically, the object distance calculation processing unit 13 sets an area where the pedestrian 100 is projected in the right camera image GR as the object area. The object distance calculation processing unit 13 detects (searches) each corresponding point in the left camera image GL for each pixel in the set region, and generates a parallax amount between the detected corresponding point Is calculated. In the present embodiment, detection of the corresponding points is performed based on an area-based matching method that is a known method based on luminance information of each pixel of both images GL and GR.

  The object distance calculation processing unit 13 further obtains a distance value from the vehicle A by the principle of triangulation based on the calculated parallax amount for each pixel in the object region. Then, the weighted average value of the distance values in the object region (the sum of the distance values for each pixel in the object region / the total number of pixels in the object region) is used as the distance value from the vehicle A to the pedestrian 100. Calculate as

  Based on the distance value from the vehicle A to the pedestrian 100 calculated by the object distance calculation processing unit 13, the risk level determination processing unit 14 determines whether the risk level of the pedestrian 100 is equal to or greater than a predetermined level. To do. Here, the degree of danger means the degree of necessity for the driver M to pay attention to ensure safe driving of the vehicle A, and the degree-of-risk determination processing unit 14 uses the object distance calculation processing unit 13. When the calculated distance value of the pedestrian 100 is less than or equal to a predetermined value, it is determined that the risk level of the pedestrian 100 is greater than or equal to the predetermined level, and when the calculated distance value exceeds a predetermined value, It is configured to determine that the risk level of the pedestrian 100 is less than a predetermined level.

  The display control unit 15 outputs a necessary control signal to the display device 6 based on the risk information from the risk determination processing unit 14 and the line-of-sight information from the line-of-sight direction detection device 5, The display of the warning mark 3 by the display device 6 is controlled. Specifically, the display control unit 15 performs line-of-sight guidance control for guiding the driver's line of sight to the pedestrian 100 whose degree of danger is determined to be equal to or greater than a predetermined degree by the degree-of-risk determination processing unit 14, and the walking A warning display control for alerting the driver M to the driver 100 and a focus adjustment display control for focusing the eyes of the driver M on the pedestrian 100 are executed. Details of each display control will be described later.

  Next, warning mark display control in the ECU 7 will be described in detail with reference to the flowchart of FIG.

  In step S1, captured image data captured by each of the cameras 4L and 4R, and driver's line-of-sight direction information detected by the driver's line-of-sight direction detection device 5 (for example, vector data indicating the line-of-sight direction). Read.

  In step S2, the object detection processing unit 12 performs the above-described pattern matching process on the right camera image GR based on the captured image data read in step S1, thereby displaying the image in the right camera image GR. The detected pedestrian 100 is detected.

  In step S <b> 3, the object distance calculation processing unit 13 calculates a distance value between the pedestrian 100 projected in the right camera image GR and the vehicle A.

  In step S4, it is determined whether or not the distance value calculated in step S3 is equal to or smaller than a predetermined value (the risk level of the pedestrian 100 detected in the process of step S2 is equal to or higher than the predetermined level). On the other hand, if YES, the process proceeds to step S5.

  In step S5, the line-of-sight guidance control is executed. Specifically, by outputting a necessary control signal from the display control unit 15 to the display device 6, a warning mark is displayed at the tip of the driver M's line of sight read in step S <b> 1 (the tip ahead of the vehicle). 3 is displayed (see FIG. 4). In this embodiment, the warning mark 3 is a mark in which a circle is filled with red. Needless to say, the color of the warning mark is not limited to red, and the shape is not limited to a circle.

  In step S6, the above-mentioned alert display control is executed. Specifically, by outputting a necessary control signal from the display control unit 15 to the display device 6, the warning mark 3 displayed in step S <b> 5 is viewed from the driver M, and the lower side of the pedestrian 100. Is moved linearly to the vicinity of (a range where the pedestrian 100 enters the sight of the driver M who is looking at the warning mark 3).

  In step S7, display control for focus adjustment is executed. Specifically, the warning mark 3 located near the lower side of the pedestrian 100 is not superimposed on the pedestrian 100 by outputting a necessary control signal from the display control unit 15 to the display device 6. And gradually moving upward (see FIG. 5).

  In step S8, it is determined whether or not a predetermined time has elapsed since the focus adjustment display control process (the process of step S7) was completed. If this determination is NO, the process returns to step S7, but is YES. Sometimes the process proceeds to step S9.

  In step S9, a display stop signal is output from the display control unit 15 to the display device 6 so that the warning mark disappears (not displayed), and then the process returns.

  By the control operation of the ECU 7, for example, when a pedestrian 100 having a high degree of danger exists in front of the vehicle, a warning mark 3 is displayed on the front window 2 at a portion positioned ahead of the line of sight of the driver M, This warning mark 3 moves to the upper side of the pedestrian 100 as viewed from the driver, then moves upward, approaches the pedestrian 100 and eventually disappears.

  As described above, in the first embodiment, the warning mark is first displayed at the tip of the driver M's line of sight, and then moved to the vicinity of the pedestrian 100 (the vicinity of the lower side). It is possible to guide the M line of sight toward the warning mark 3 to the vicinity of the pedestrian 100 without fail. Accordingly, the pedestrian 100 can be reliably positioned in the field of view of the driver M, and the driver M can be alerted to the pedestrian 100.

  In the first embodiment, the warning mark 3 is positioned in the vicinity of the lower side of the pedestrian 100 and then moved upward so as to approach the pedestrian 100, so that the human can move away from the nearby object. A warning mark 3 (near object) displayed on the front window 2 is used to focus the eye of the driver M on the basis of the habit of directing the line of sight from the lower side to the upper side when moving the eye focus to To the pedestrian 100 (distant object). Thus, the driver M can surely focus his eyes on the pedestrian 100 having a high degree of danger, and thus the vehicle can be driven while sufficiently ensuring the safety of the pedestrian 100 around the vehicle A. Become.

  In the first embodiment, the warning mark 3 is finally extinguished, thereby reliably preventing the driver M from focusing on the pedestrian 100 while keeping the focus on the warning mark. Can do.

  Next, a modified example regarding the focus adjustment display control in the ECU 7 will be described. FIG. 6 shows a modified example of the focus adjustment display control. In this modified example, the focus of the eye of the driver M is adjusted by moving the warning mark 3 from the lower side to the upper side as in the first embodiment. Although it tries to match with the pedestrian 100, it differs from the said Embodiment 1 by the point which made the size (diameter dimension of a mark) small as the warning mark 3 was moved to the upper side. .

  According to this, the size of the warning mark 3 is reduced as the warning mark 3 is moved from the lower side to the upper side, so that the driver M can take advantage of the habit of recognizing that a human being looks smaller is a farther object. The focus of the eyes can be more easily moved from the mark (that is, a nearby object) displayed on the front window 2 to the pedestrian 100 (that is, a distant object).

(Embodiment 2)
FIG. 8 shows a second embodiment of the present invention, in which warning mark display control (attention display control and focus adjustment display control) in the ECU 7 is different from that in the first embodiment. In the following embodiment, the hardware configuration of the ECU 7, the configuration of the stereo camera 4, the display device 6, the driver's line-of-sight direction detection device 5, and the like are the same as those in the first embodiment.

  Of the warning mark display control in the ECU 7 according to the second embodiment, steps S6 and S7 different from those in the first embodiment will be described. In addition, since the process of step S1 thru | or step S5 and step S8 and step S9 is the process similar to the said Embodiment 1, the description is abbreviate | omitted here.

  In step S6, alert display control is executed. Specifically, the necessary control signal is output from the display control unit 15 to the display device 6 so that the warning mark 3 displayed in step S5 is superimposed on the pedestrian 100 when viewed from the driver M. Is moved linearly to the center (see FIG. 8A).

  In step S7, display control for focus adjustment is executed. Specifically, by outputting a necessary control signal from the display control unit 15 to the display device 6, the warning mark 3 is deformed into an annular line superimposed on the pedestrian 100 and the inner diameter is gradually enlarged. And it displays so that the pedestrian 100 may be enclosed (refer FIG.8 (b)). Then, when the inner diameter is expanded to the extent that the pedestrian 100 just fits within the annular line (when the inner diameter dimension becomes a predetermined dimension), the expansion is stopped and the thickness of the annular line is gradually reduced to a predetermined value. The thickness is set (see FIG. 8C).

  By the control operation of the ECU 7, for example, when a pedestrian 100 having a high degree of danger exists in front of the vehicle, a warning mark 3 is displayed on the front window 2 at a portion positioned ahead of the line of sight of the driver M, Thereafter, the warning mark 3 moves to a position where it is superimposed on the pedestrian 100 when viewed from the driver M, and changes to an annular shape at that position and gradually expands in diameter so as to surround the pedestrian 100. The When the size of the warning mark 3 (annular line) reaches a predetermined size, the diameter expansion stops, the thickness of the line of the mark 3 gradually decreases, and disappears after reaching the predetermined thickness (see FIG. 8). ).

  As described above, in the second embodiment, the warning mark 3 is first displayed on the front window 2 at the tip of the line of sight of the driver M, and then moved to the position where the pedestrian 100 is superimposed. The line of sight of the driver M can be reliably guided to the warning mark 3 and guided to the position of the pedestrian 100. Accordingly, the pedestrian 100 can be reliably positioned in the field of view of the driver M, and the driver M can be alerted to the pedestrian 100.

  Further, in the second embodiment, the warning mark 3 is changed into an annular shape at a position where the warning mark 3 is superimposed on the pedestrian 100 and gradually expanded in diameter so as to surround the pedestrian 100. It is possible to obtain a visual effect as if it is zoomed up, and to use this visual effect and the habit of trying to focus on an object that is visible to the inside of the loop line. The focus of M's eye can be easily moved from the mark (that is, a nearby object) displayed on the front window 2 to the pedestrian 100 (that is, a distant object).

  In the second embodiment, when the size of the warning mark 3 reaches a predetermined size, the thickness of the line is gradually reduced so that the warning mark 3 is gradually noticeable when viewed from the driver M. Without this, the focus of the eyes of the driver M can be smoothly moved from the warning mark 3 to the pedestrian 100. The warning mark 3 may be made inconspicuous by displaying the warning mark 3 so that the darkness of the line gradually decreases.

  Further, since the warning mark 3 is finally extinguished, the focus of the eyes of the driver M can be reliably moved to the pedestrian 100. In this way, it is possible to obtain the same effect as that of the first embodiment.

(Embodiment 3)
FIG. 9 shows a third embodiment of the present invention, in which warning mark display control (attention display control and focus adjustment display control) in the ECU 7 is different from the first and second embodiments.

  Of the warning mark display control in the ECU 7 according to the third embodiment, steps S6 and S7 different from those in the above embodiments will be described. In addition, about the process of step S1 thru | or step S5 and step S8 and step S9, since it is the same process as said each embodiment, the description is abbreviate | omitted here.

  In step S6, alert display control is executed. Specifically, by outputting a necessary control signal from the display control unit 15 to the display device 6, the warning mark 3 (marked with a circle) displayed in step S5 is viewed from the driver M. In a circular shape (in this embodiment, a vertically long elliptical shape corresponding to the shape of the pedestrian 100), the pedestrian 100 is linearly approached and surrounded by the pedestrian 100 in the vicinity of the pedestrian 100. Deform (see FIG. 9A).

  In step S7, display control for focus adjustment is executed. Specifically, by outputting a necessary control signal from the display control unit 15 to the display device 6, the diameter of the annular warning mark displayed in step S6 is gradually reduced, and the size is a predetermined size. The diameter reduction is stopped (see FIG. 9B) (when the inner diameter of the ring is 0 in this embodiment and the inside of the ring is filled). ).

  By the control operation of the ECU 7, for example, when a pedestrian 100 having a high degree of danger exists in front of the vehicle, a warning mark 3 is displayed on the front window 2 at a portion positioned ahead of the line of sight of the driver M, Thereafter, the warning mark 3 moves to the vicinity of the pedestrian 100 as viewed from the driver M, and is displayed so as to surround the pedestrian 100 by changing to an elliptical ring shape at the vicinity, and then gradually reduces the diameter. Disappears after it reaches a predetermined size.

  As described above, in the third embodiment, the warning mark 3 is changed into an annular shape surrounding the pedestrian 100 at a position near the pedestrian 100 and gradually reduced in diameter, so that the human can recognize the circular line. Using the habit of trying to focus on objects that are visible on the inside and the habit of recognizing objects that appear smaller as objects that appear smaller, the focus of the eyes of the driver M from the warning mark 3 to the pedestrian 100 (that is, objects that are far away). ) Smoothly and surely.

  Further, in Embodiment 3 described above, the warning mark is finally extinguished to prevent the warning mark 3 from remaining superimposed on the pedestrian 100, and the focus of the eyes of the driver M is set to the warning mark 3. To the pedestrian 100 can be reliably moved. In this way, it is possible to obtain the same effects as those of the first and second embodiments.

(Other embodiments)
The configuration of the present invention is not limited to the above embodiments, but includes various other configurations. That is, in each of the above embodiments, the warning mark is displayed on the front window 2, but the warning mark 3 is displayed on the vehicle rear side (front side as viewed from the driver M) of the front window 2. You may make it provide a part (for example, comprised with light transmission variable glass).

  In each of the above embodiments, the pedestrian 100 is detected by the stereo camera 4, but the present invention is not limited to this, and the pedestrian 100 may be detected by only one camera 4R (or 4L).

  In each of the above embodiments, when the ECU 7 (object detection processing unit 12) detects the pedestrian 100 existing in front of the vehicle based on the captured images GL and GR of the stereo camera 4, a warning is displayed on the front window 2. Although an example in which the mark 3 is displayed is shown, the present invention is not limited to this. For example, the side of the vehicle is imaged by the stereo camera 4 and the pedestrian 100 existing on the side of the vehicle is detected based on the captured image. In this case, the warning mark 3 may be displayed on the side window.

  INDUSTRIAL APPLICABILITY The present invention is useful for a vehicle information presentation system including an information display unit that superimposes and displays a predetermined mark for driving support in a landscape that can be seen by a driver of a vehicle. The present invention is useful for a vehicle equipped with a head-up display system for displaying information as an information presentation system.

It is the schematic seen from the vehicle upper side which shows the vehicle carrying the vehicle information system which concerns on embodiment of this invention. It is a block diagram which shows the structure of the information system for vehicles. It is a flowchart which shows display control of the warning mark in ECU. It is a figure which shows typically the display procedure of the warning mark on a front window. It is a schematic diagram for demonstrating the detail of display control of the warning mark in ECU. FIG. 6 is a view corresponding to FIG. 5 and showing a modification of the first embodiment. FIG. 5 is a view corresponding to FIG. FIG. 6 is a view corresponding to FIG. FIG. 6 is a view corresponding to FIG.

A Vehicle M Driver 1 Information presentation system 3 for vehicle Warning mark (predetermined mark)
4 Stereo camera (object detection means)
6 Display devices (information display means, alert display means, focus adjustment means)
7 ECU (object detection means, information display means, warning display means, focus adjustment means)
100 pedestrians (objects)

Claims (8)

An information presentation system for a vehicle comprising information display means for displaying a predetermined mark for driving assistance superimposed on a landscape seen from a driver of the vehicle,
An object detection means for detecting a predetermined object outside the vehicle;
The information display means is
When the predetermined object is detected by the object detection means, the mark is superimposed on the object as seen from the driver so as to alert the driver of the vehicle to the object. A warning display means for displaying at a position or its peripheral position;
After the mark is displayed by the alert display means, focus adjustment is performed to change the display mode of the mark so that the focus of the driver's eyes matches the object detected by the object detection means. Means,
A vehicle information presentation system comprising: The vehicle information presentation system according to claim 1,
When the predetermined object is detected by the object detection means, the warning display means displays the mark from the driver so as to alert the driver of the vehicle to the object. Configured to be displayed near the lower side of the object,
The focus adjusting means is arranged so that, after the mark is displayed by the alert display means, the focus of the driver's eyes is adjusted to the predetermined object detected by the object detecting means. A vehicle information presentation system configured to move a mark upward. The vehicle information presentation system according to claim 2,
When the mark is moved upward, the focus adjustment means is configured to reduce the size of the mark according to the upward movement of the mark. In the vehicle information presentation system according to claim 2 or 3,
The vehicle information presentation system, wherein the focus adjusting means is configured to hide the mark when the mark is moved to the upper side and the position becomes a predetermined position. The vehicle information presentation system according to claim 1,
The warning display means looks at the mark from the driver so as to call the driver's attention to the object when the predetermined object is detected by the object detecting means. Configured to be displayed so as to be superimposed on the object,
The focus adjusting means is arranged so that, after the mark is displayed by the alert display means, the focus of the driver's eyes is adjusted to the predetermined object detected by the object detecting means. The mark is displayed as an annular line superimposed on the object when viewed from the driver, and after the display, the annular line is gradually expanded in diameter and displayed so as to surround the object. A vehicle information presentation system that is characterized. The vehicle information presentation system according to claim 5,
The focus adjustment means is configured to gradually reduce the thickness of the line when the inner diameter of the mark reaches a predetermined dimension by expanding the diameter of the mark as an annular line. Information presentation system. The vehicle information presentation system according to claim 5,
The focus adjustment means is configured to hide the mark when the mark reaches a predetermined dimension by expanding the mark as an annular line, and presents the information for vehicles. system The vehicle information presentation system according to claim 1,
When the predetermined object is detected by the object detection means, the warning display means displays the mark from the driver so as to alert the driver of the vehicle to the object. It is configured to be displayed with an annular line surrounding the object,
The focus adjusting means is arranged so that, after the mark is displayed by the alert display means, the focus of the driver's eyes is adjusted to the predetermined object detected by the object detecting means. A vehicle information presentation system configured to gradually reduce the diameter of a mark and to hide the mark when the inner diameter of the mark reaches a predetermined dimension.

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