JP5157134B2 - Attention guidance device and attention guidance method - Google Patents

Description

  The present invention relates to an attention guiding device and an attention guiding method.

  In a moving body that moves in space, for example, a vehicle that travels on a road, it is known that the driver continuously moves his / her line of sight and face according to the traveling direction of the vehicle. However, passengers other than the driver cannot predict the direction of travel of the vehicle, or cannot easily predict it, and therefore cannot continuously move their line of sight and face according to the direction of travel of the vehicle. In order to solve such a problem, a display device is known that visually presents the behavior of a vehicle to an occupant other than the driver (see, for example, Patent Document 1).

Prior art documents related to the invention of this application include the following.
Japanese Patent Laid-Open No. 2005-294554

  However, in the conventional display device described above, the acceleration of the vehicle is detected based on the turning angle, speed, rotation, etc. of the vehicle, and a display that moves at a direction and speed according to the acceleration is presented to the occupant. There is a problem that passengers other than the driver cannot pay attention to the traveling direction of the vehicle prior to the vehicle behavior like the driver. In addition, an occupant other than the driver visually accepts acceleration applied to the vehicle, which increases the influence of acceleration.

The attention guidance device according to claim 1 includes a driver behavior detecting means for detecting a behavior of the driver of the moving body, and a moving body for estimating a future behavior of the moving body based on a detection result of the driver behavior detecting means. The behavior estimation means, the video playback means for reproducing the content video, and the future behavior information of the mobile body estimated by the mobile body behavior estimation means are converted into a display (hereinafter referred to as stimulus display) that gives a visual stimulus to the occupant of the mobile body. And information presentation means for superimposing the stimulus display obtained by the conversion on the reproduced content video and displaying it on the display means to present it to the occupant of the moving body, wherein the information presentation means comprises the movement Upon converting the future behavior information of the body to the stimulus display, depending on the future behavior information, the stimulus display direction of movement, altering at least one momentum and strength, the stimulus display occupant sight distribution Characterized in that but a lower image spatial frequency, such as less than gaze allocation to the content image.
The attention guidance device according to claim 4 includes a driver behavior detecting means for detecting the behavior of the driver of the moving body, and a traveling direction for estimating the driver's traveling direction intention based on the detection result of the driver behavior detecting means. The intention estimation means, the video reproduction means for reproducing the content video, and the driver's traveling direction intention information estimated by the moving body behavior estimation means are displayed on the display (hereinafter referred to as stimulus display) for giving visual stimulus to the occupant of the moving body. The information display means for converting and displaying the stimulus display obtained by the conversion superimposed on the content video and displaying it on the display means and presenting it to the occupant of the mobile body. the traveling direction intended information Upon converting to the stimulus display, in accordance with the traveling direction intended information of the driver, the stimulus display direction of movement, altering at least one momentum and strength, the stimulus display Wherein the passenger sight line allocation is low image with less comprising such a spatial frequency than the line of sight allocation to the content image.
The attention guidance device according to claim 10 includes a driver behavior detecting means for detecting a behavior of the driver of the moving body, and a moving body for estimating a future behavior of the moving body based on a detection result of the driver behavior detecting means. The behavior estimation means, the video playback means for reproducing the content video, and the future behavior information of the mobile body estimated by the mobile body behavior estimation means are converted into a display (hereinafter referred to as stimulus display) that gives a visual stimulus to the occupant of the mobile body. And information presentation means for superimposing the stimulus display obtained by the conversion on the reproduced content video and displaying it on the display means to present it to the occupant of the moving body, wherein the information presentation means comprises the movement Upon converting the future behavior information of the body to the stimulus display, depending on the future behavior information, the stimulus display direction of movement, altering at least one momentum and strength, and the information presentation unit, Contrast in the lateral direction of the serial display means and wherein the presenting visual stimuli that varies sinusoidally.
The attention guidance device according to claim 11 includes a driver behavior detecting means for detecting the behavior of the driver of the moving body, and a traveling direction for estimating the driver's traveling direction intention based on the detection result of the driver behavior detecting means. The intention estimation means, the video reproduction means for reproducing the content video, and the driver's traveling direction intention information estimated by the moving body behavior estimation means are displayed on the display (hereinafter referred to as stimulus display) for giving visual stimulus to the occupant of the moving body. The information display means for converting and displaying the stimulus display obtained by the conversion superimposed on the content video and displaying it on the display means and presenting it to the occupant of the mobile body. the traveling direction intended information Upon converting to the stimulus display, in accordance with the traveling direction intended information of the driver, the stimulus display direction of movement, altering at least one momentum and strength, and the information Presentation means is characterized by presenting a visual stimulus whose contrast is changed sinusoidally in the lateral direction of the display means.
The attention guidance method according to claim 14 detects the behavior of the driver of the moving object, estimates the future behavior of the moving object based on the detection result, and uses the estimated future behavior information of the moving object as an occupant of the moving object. In order to display the stimulus display on the display means and present it to the occupant of the mobile object, the display of the stimulus display is performed according to the future behavior information of the mobile object. An attention guiding method in which at least one of a movement direction, a momentum, and an intensity is changed and a reproduced content image and the stimulus display are displayed in a superimposed manner, and the future behavior information or the traveling direction intention information is assigned to the sight line of the occupant. It is converted to a stimulus display with a low spatial frequency so as to be smaller than the line-of-sight distribution for the content video .
The attention guidance method according to claim 15 detects the behavior of the driver of the mobile object, estimates the driver's travel direction intention based on the detection result, and uses the estimated driver's travel direction intention information of the mobile object. The display is converted into a display that gives a visual stimulus to the occupant ( hereinafter referred to as a stimulus display), and the stimulus display is displayed on the display means and presented to the occupant of the moving body. An attention guidance method for superimposing and displaying a reproduced content image and the stimulus display by changing at least one of a motion direction, a motion amount, and an intensity of display , wherein the future behavior information or the traveling direction intention information is displayed on the line of sight of a passenger It is converted to a stimulus display with a low spatial frequency so that the distribution is smaller than the line-of-sight distribution for the content video .

  According to the present invention, an occupant other than the driver can be alerted to the traveling direction of the vehicle prior to the vehicle behavior, and the cause of motion sickness can be eliminated by reducing the head momentum of the occupant. it can.

<< First embodiment of the invention >>
FIG. 1 shows the configuration of the attention guiding device according to the first embodiment. The attention guidance device 41 according to the first embodiment includes a travel direction intention estimation device 42 that estimates a driver's “travel direction intention” (details will be described later), and a driver travel direction estimated by the travel direction intention estimation device 42. A visual stimulus control unit 43 that controls a visual stimulus according to the intention, a visual stimulus presentation unit 44 that presents a visual stimulus according to the intention of the driver's traveling direction to an occupant other than the driver under the control of the visual stimulus control unit 43, and the like. I have.

  FIG. 2 shows a layout example in which the attention guiding device 41 of the first embodiment is mounted on a vehicle 51. In the first embodiment, a liquid crystal display 53 is installed as the visual stimulus presentation unit 44 on the back side of the driver's seat 52 of the vehicle 51.

  The visual stimulus presentation unit 44 is preferably installed substantially in front of the occupant other than the driver of the vehicle 51, but presents the visual stimulus within the occupant's effective visual field even in other places. If it is possible. For example, you may install in the monitor for the backseat installed in the ceiling part of the vehicle 51, the headrest of the driver's seat 52, the seat back part of the front passenger seat, or the headrest.

  The visual stimulus presentation unit 44 may move or change the visual stimulus in the left-right direction, the vertical direction, or both in the effective field of view of an occupant other than the driver. For example, although not shown, a plurality of LEDs are arranged. It is good also as a structure which a visual stimulus moves on a passenger | crew's perception by controlling the lighting location. Furthermore, the physical shape may be configured to move in the left-right direction, the up-down direction, or both.

  The display screen or display area of the visual stimulus presentation unit 44 is ideally about 7 inches diagonal, but the effect can be obtained even below that. Of course, the size may be larger if there is no problem in the vehicle layout.

  The traveling direction intention estimation device 42 detects the driver's state and estimates the driver's “traveling direction intention” from the detection result. A method of estimating the traveling direction intention will be described. Although the details will be described later, according to the results of experiments conducted by the present applicant, when the driver steers in accordance with the traveling direction, the head is directed in the turning direction about 0.2 to 1 second before the steering action. Has been confirmed. In addition, it has been confirmed that the line of sight is turned in the turning direction about 0.2 to 0.5 seconds before the head movement.

  FIG. 3 is a diagram representing a time-series change of the gaze horizontal direction angle 61, the head yaw direction rotation angle 62, and the vehicle turning angle 63 in a curve approximation graph when traveling on a mountain test course. The points where the respective parameters change from increasing to decreasing or from decreasing to increasing are plotted as the line-of-sight changing point 61a, the head yaw direction changing point 62a, and the turning angle changing point 63a. The point from the increase to the decrease or from the decrease to the increase is the point at which the operation accompanying the right turn to the left turn or the left turn to the right turn changes, and is the starting point of the turning operation. From FIG. 3, it is understood that the line-of-sight change point 61a precedes the head yaw direction change point 62a in time, and the head yaw direction change point 62a precedes the turning angle change point 63a in time. I understand.

  From the above experimental results, if the driver's “traveling direction intention” is the direction that the driver wants to go or the direction that the driver is heading, the direction of the driver's direction that the driver wants to go is The estimation can be performed, and the direction in which the driver is heading can be estimated after the driver takes a turning action. The direction the driver wants to go can be estimated from the gaze direction and / or the head direction preceding the steering action, and the direction the driver is heading depends on the steering action or the steering action. It can be estimated from the accompanying vehicle behavior.

  As a method of measuring the driver's line-of-sight direction in real time, for example, a method of measuring the driver's eyeball with an optical device attached to the hat worn by the driver and measuring the line-of-sight direction is common. It is also possible to consider a method in which a driver's face is photographed with a camera installed in the vicinity of a speedometer and the line-of-sight direction is measured in a non-contact manner based on changes in the area of the black and white eyes by image analysis.

  In addition, as a method of measuring the driver's head direction in real time, a camera installed near the speedometer or the like is used to photograph feature points such as the eyes and nose of the driver's face or a hat worn by the driver. However, a method of measuring by image analysis is common. In addition, the line-of-sight direction and the head direction can be measured in units of the rotation angle or the rotation angle displacement amount by the above measurement method.

  Next, a visual stimulus control method in the visual stimulus control unit 43 will be described. The visual stimulus control unit 43 is installed on the back side of the driver seat 52 based on the driver's traveling direction intention information sent from the traveling direction intention estimation device 42, that is, information on the driver's gaze direction and head direction. The display on the liquid crystal display 53 is controlled.

  In the first embodiment, the visual stimulus uses an image in which “random dots” as shown in FIG. In the drawing, each arrow is an arrow for indicating a movement vector of a random dot that is originally displayed, and a dot is originally displayed on the screen instead of the arrow. Further, dots are also moved and displayed at a speed corresponding to the distance from the point 71 even at a location not indicated by an arrow. Further, the magnitude of the random dot movement vector indicated by the arrow is the momentum of the visual stimulus.

  The momentum of each dot increases as the distance from the spring point 71 increases. When the spring point 71 is near the center of the liquid crystal display 53 as shown in FIG. Slowly, random dots accelerate as the distance from the center of the screen increases. Such a random dot diffusion image can be easily produced using a general personal computer 3D drawing software.

  The visual stimulus control unit 43 controls the visual stimulus. The visual stimulus control mainly controls the position of the spring point 71. That is, when it is detected by the traveling direction intention estimation device 42 that the driver is turning his / her head 10 degrees on the left side in the traveling direction, as shown in FIG. Control to move to the left side, that is, the left side 53L of the liquid crystal display 53.

  When the screen size is defined as horizontal 640 dots × vertical 480 dots, the coordinates of the left end 53L of the liquid crystal display 53 are (0, 0), and the coordinates of the right end 53R are (640, 0), FIG. As shown in FIG. 4, when the spring point 71 is at the center of the screen, the horizontal position of the spring point 71 is 320, whereas the spring point 71 is on the left side of the screen as shown in FIG. In some cases, the lateral position of the spring point 71 is 160. As shown in FIG. 4B, even when the well point 71 is on the left side of the screen, the momentum of each random dot point increases as the distance from the well point 71 increases, so that the random dot moves near the left end 53L of the screen. The speed is slower than the moving speed of random dots near the right edge 53R of the screen.

  Next, a method for calculating the lateral position of the spring point 71 will be described with reference to FIGS. 5 and 6. FIG. 5 is a conceptual diagram for explaining the relationship between the head direction of the driver and the head angle, and FIG. 6 is an example of a conversion map for converting the head angle to the lateral position of the spring point 71.

  As shown in FIGS. 5 (a) and 5 (b), the driver turns his head to the front during straight running. The head direction 81 during straight running is defined as a head angle of 0 degree. On the other hand, as shown in FIGS. 5 (c) and 5 (d), the driver turns his head to the left side when turning left. An angle 83 formed by the head direction 82 of the driver with respect to the head direction 81 during straight traveling is defined as a head angle. As shown in FIGS. 5C and 5D, the angle when the driver is facing the left side is treated as minus, and the angle when the driver is facing the right side is treated as plus. May be provided at any position.

  FIG. 6 is a graph showing the relationship between the head angle and the random dot welling point 71. When an occupant other than the driver looks at the liquid crystal display 53, assuming that the horizontal position at the left end of the display is 0 and the horizontal position at the right end is 640, when the head angle is 0 degree, the spring point 71 is the center of the screen, that is, When the head angle is −30 degrees, the lateral position is 80, and when the head angle is +30 degrees, the lateral position is 560, and the lateral position continuously changes within a range of ± 30 degrees. It shows that

  Although illustration is omitted, when the head angle becomes ± 30 degrees or more, as long as there is a horizontal position in the displayable area, that is, as long as it falls within the range of 0 to 640, it may be continuously moved and displayed. In addition, the lateral position may be kept constant in the range exceeding ± 30 degrees. Furthermore, when the horizontal position does not fall within the range of 0 to 640, the horizontal position may be virtually taken outside the display area.

  The conversion map example shown in FIG. 6 shows an example in which the head angle and the display position change linearly. For example, when the driver suddenly moves the head, the display is not linked to the head angle. The head rotation angular velocity may be calculated from the differential value of the part angle, and control may be performed so that the display is not interlocked above a certain fixed velocity. Further, the control or display at the time of stopping of the vehicle may be stopped on the assumption that the intention of the traveling direction is not included in the head position of the driver when the vehicle is stopped.

  With the above-described configuration, the random dot springing point 71 can be controlled in the left-right direction of the display screen according to the driver's attention direction, in this first embodiment, the driver's head angle.

  In the first embodiment, an example in which the random dot boiling point 71 is controlled only in the left-right direction is shown. However, for example, when the vehicle approaches a slope, the vertical angle of the driver's head is simultaneously measured. Then, the random dot boiling point 71 may be controlled in the vertical direction in accordance with the vertical angle of the driver's head.

  In the first embodiment, the display position of the random dot boiling point 71 is controlled by the driver's head angle. However, the driver's head angle and line-of-sight angle are measured simultaneously. As a result, the line-of-sight angle with respect to the vehicle can be measured, and the display position of the random dot boiling point 71 may be controlled in accordance with the line-of-sight angle with respect to the vehicle.

  An image in which random dots diffuse from a specific spring point as described above is a visual stimulus that simplifies the visual information necessary for humans to perceive spatial movement. When visualizing such a visual stimulus, The line of sight is induced near the spring point where the random dot momentum is low. In this first embodiment, an example of random dots diffusing from the spring point is shown. However, an image in which random dots converge toward a specific point, that is, the movement of random dots in the first embodiment is reversed. In the video, the attention is guided to the point where the random dots converge, so an image where the random dots converge toward a specific point may be presented instead of the above-described video of the first embodiment. .

  In the visual stimulus according to the first embodiment, the attention of the occupant is guided by the movement of a random dot springing point or convergence point. For example, a figure as shown in FIG. It may be used as a visual stimulus. FIG. 7A shows an example in which a spring point is expressed by an explicit circle or a circular figure and attention is induced by the movement. Note that even if the boiling point is not a circular figure, it is possible to guide the occupant's attention by moving the boiling point to a location where the luminance is higher or lower than other locations. FIG. 7B shows a shape in which luminance or chromaticity decreases outward from the center of the circular shape, but attention can be induced even in a shape in which the contrast is continuously changed.

  Furthermore, as shown in FIG. 8, the shape in which the contrast is uniform in the vertical direction and continuously changes in the horizontal direction is used, and the portion with the highest luminance is moved to the left from the state shown in (a). In addition, it is possible to guide attention to the left by moving and displaying the state shown in FIG. The momentum of the visual stimulus in this case is a lateral movement speed with a uniform contrast in the vertical direction.

  The visual stimulus changes according to the driver's intention in the traveling direction, but the intensity of the stimulus changes temporally and in place on the perception of the occupant who visually recognizes the visual stimulus due to changes in the luminance and chromaticity of the visual stimulus. That is, it is possible to change the visual stimulus intensity by changing the luminance, chromaticity, and the like of the visual stimulus in terms of time and place.

  In this way, it is possible to control the visual stimulus according to the driver's intention in the direction of travel, and to guide the attention of the passenger other than the driver to the driver's intention in the direction of travel, thereby reducing the head momentum of the passenger. Can be reduced.

  In the first embodiment described above, the vehicle moving in the space has been described as an example. However, for example, in a moving body in which the driver's traveling direction intention is difficult to be transmitted, such as an aircraft, the occupant is in accordance with the driver's traveling direction intention. The effect of stabilizing the occupant's head movement can be expected by inducing attention.

<< Modification of First Embodiment >>
A description will be given of a method of estimating the direction in which the driver is heading in the traveling direction intention of the driver based on the turning angle, vehicle speed, rotational angular velocity, and the like of the vehicle. The direction in which the driver is heading can be calculated from the steering angle of the driver, the product of the steering angle and the vehicle speed, or the yaw angular velocity of the vehicle.

  FIG. 9 shows an example of a conversion map for converting from the turning angle to the intended traveling direction angle. When turning the steering direction with a left turn, minus the turning direction with a right turn, and turning the steering neutral position to 0 degrees, "steering angle x steering gain", in this case the steering gain Is converted to an intended angle in the direction of travel.

  In addition, when the turning angle exceeds ± 90 degrees, the traveling direction intention angle may be fixed at ± 30 degrees, or the traveling direction angle is continuously converted even in the range exceeding the steering angle ± 90 degrees. Also good. Further, the conversion threshold value may be other than ± 30 degrees. In addition, when the intended direction angle is calculated from the turning angle and the visual stimulus is changed, a threshold value may be provided for the vehicle speed to stop visual stimulus control or presentation of the visual stimulus.

  Next, a method for converting the product of the steering angle and the vehicle speed into the intended traveling direction angle will be described. Although illustration of the conversion map example is omitted, the traveling direction angle is calculated by “steering angle × vehicle speed × vehicle traveling speed gain”. For example, when 1/30 is used as the vehicle traveling speed gain, the intended traveling direction angle when turning to the right by 30 degrees at 60 km / h is 60 degrees, and by 30 degrees to the left at 30 km / h. The intended angle in the direction of travel when steered is 30 degrees.

  A method for converting the vehicle yaw angular angular velocity into the traveling direction intended angle will be described. Although illustration of the conversion map example is omitted, the traveling direction angle is calculated by “vehicle yaw angular velocity × yaw rate gain”. When 1.5 is used for the yaw rate gain, for example, the intended angle in the direction of travel when the vehicle rotates at a yaw angular angular velocity of 20 deg / sec with rightward turning is 30 degrees.

  A visual stimulus is controlled by the visual stimulus control unit 43 according to the intended direction angle calculated in the above manner, and a conversion map shown in FIG. 10 is used to calculate a display position corresponding to the intended direction angle. Since the conversion method is the same as the method for calculating the display position from the driver's head angle, the description is omitted.

  According to the above-described modification, it is possible to estimate the direction in which the driver is heading from the steering direction of the vehicle, the vehicle speed, the rotational angular velocity, and the like, and generate a visual stimulus to be presented to the occupant. It becomes possible.

<< Experimental Results According to First Embodiment and Modifications >>
Next, the experimental result by the vehicle carrying the attention guidance apparatus 41 of 1st embodiment is demonstrated. In order to investigate the head movement characteristics of a driver and a non-driver occupant in a general vehicle, an experiment was conducted by running on the test course so that left and right turns were continuous. The driving conditions were measured after driving on a driving line with a steering cycle of about 0.15 Hz and after the test driver performed ten familiar drivings.

  First, the experimental result in the state which does not operate the attention guidance apparatus 41 of 1st embodiment is demonstrated. FIG. 11 is a graph showing the displacement of the head angle (vertical axis) of the driver and the occupant who got on the rear seat in time series (horizontal axis). As is apparent from the figure, a negative correlation is observed between the head angle 11 of the driver and the head angle 12 of the passenger in the rear seat. That is, it can be seen that the driver and the head of the rear seat occupant are moving in opposite directions. This is because the driver adjusts the direction of the head to the inside of the turn in accordance with the vehicle's curved road travel, whereas the rear seat occupant moves the head to the outside of the turn due to acceleration applied to the vehicle. Indicates. In other words, a driver who can predict the direction of travel of the vehicle reduces the influence of acceleration applied to the vehicle by paying attention to the direction of travel of the vehicle ahead of the vehicle behavior, while The head movement is disturbed by the acceleration applied to the vehicle. The disturbance of the head movement leads to an increase in the amount of head movement, and can also cause occupant motion sickness.

  As described above, by experimentally explaining that the driver's attention direction can be made closer to the driver's direction of intention by visually presenting the driver's direction of intention to the passenger other than the driver. To do. In order to examine the head movement characteristics of the driver and the occupants other than the driver when operating the attention guiding device 41 of the first embodiment described above, data acquisition was performed under the above-described traveling conditions. FIG. 12 shows the experimental results, and is a graph showing the displacement of the driver's head angle (vertical axis) 21 and the rear seat occupant's head angle (vertical axis) 22 in time series (horizontal axis). As is apparent from the figure, there is a positive correlation between the driver and the rear seat occupant. That is, it can be seen that the driver and the head of the rear passenger are moving in the same direction. As described above, in the vehicle moving in the space, the direction of the driver's and passenger's head and line of sight can be taken as the direction of caution. Is approaching.

  Next, it will be described that the head momentum of the occupant other than the driver is reduced when the attention direction of the occupant other than the driver approaches the intention of the driver in the traveling direction. FIG. 13 is a graph comparing head movement speeds of occupants other than the driver when the attention guidance device 41 stops operating (see the experimental results shown in FIG. 11) and when operating (see the experimental results shown in FIG. 12). . Since this graph is an average of the head movement speed during data acquisition and the data acquisition time is common to both, the head movement speed can be treated as a displacement of the head movement amount.

  When the operation of the attention guiding device 41 is stopped, the average 31 of the head movement speed of the occupants other than the driver is about 4.8 cm / sec. It is about 2.2 cm / sec, which indicates that when the attention guidance device 41 is operated, the head movement speed of the passengers other than the driver is reduced by about 50%. The fact that the average of the head movement speed is reduced in a turn with a constant cycle means a reduction in the amount of head movement, and the direction of attention of the passenger other than the driver approaches the intention of the driver in the traveling direction. It is clear that the head momentum of passengers other than the driver is reduced.

  In the experiment for confirming the effect of the attention guiding device 41 of the first embodiment, the passenger's attention is guided by the movement of a specific shape as in the first embodiment. The same effect has been confirmed even under conditions that change the moving direction and momentum of the visual stimulus presented in the visual field.

  In the first embodiment described above, an example in which visual stimuli are presented to passengers other than the driver has been shown. However, the present invention is not limited to visual stimuli. The same effect can be obtained by driving and controlling the direction and speed of the blowing air.

  The correspondence between the constituent elements of the claims and the constituent elements of the first embodiment is as follows. That is, the traveling direction intention estimation device 42 constitutes driver behavior detection means, moving body behavior estimation means and traveling direction intention estimation means, and the visual stimulus control unit 43 and visual stimulus presentation unit 44 constitute information presentation means and display means, respectively. . The above description is merely an example, and when interpreting the invention, the correspondence between the items described in the above embodiment and the items described in the claims is not limited or restricted.

  As described above, according to the first embodiment, the behavior of the driver of the vehicle is detected, the future behavior of the vehicle is estimated based on the detection result, and the estimated future behavior information of the vehicle is As a result, the driver's head momentum can be reduced and the cause of motion sickness can be directed to the passengers other than the driver prior to the vehicle behavior. Can be removed.

  According to the first embodiment, since the driver's gaze direction is detected and the future behavior of the vehicle is estimated based on the detected driver's gaze direction, the future behavior of the vehicle is accurately estimated. can do. Further, according to the first embodiment, the driver's head direction is detected, and the future behavior of the vehicle is estimated based on the detected driver's head direction. Can be accurately estimated, and the head momentum of the passengers other than the driver can be further reduced.

  According to the first embodiment, the behavior of the driver of the vehicle is detected, the intention of the driver's traveling direction is estimated based on the detection result, and the estimated driver's traveling direction intention information is transmitted to the vehicle occupant. Since it is presented, it is possible to focus on the traveling direction of the vehicle ahead of the vehicle behavior to the occupants other than the driver, and to reduce the head momentum of the occupant and eliminate the cause of motion sickness Can do.

  According to the first embodiment, the driver's gaze direction is detected, and the driver's travel direction intention is estimated based on the detected driver's gaze direction. It can be estimated accurately, and the head momentum of passengers other than the driver can be further reduced. In addition, according to the first embodiment, the driver's head direction is detected, and the driver's traveling direction intention is estimated based on the detected driver's head direction. The traveling direction intention can be accurately estimated, and the head momentum of the occupants other than the driver can be further reduced.

  According to the first embodiment, the information on the future behavior of the vehicle or the intention of the driver's direction of travel is converted into a video that gives the driver a visual stimulus and displayed on the display. On the other hand, attention can be paid to the future behavior of the vehicle or the traveling direction of the vehicle prior to the vehicle behavior, and the cause of motion sickness can be eliminated by reducing the head momentum of the occupant.

  According to the first embodiment, an image that gives a visual stimulus that diffuses from a specific point in the display area of the display to the surroundings or a video that gives a visual stimulus that converges from the surroundings to a specific point is displayed, and the future behavior of the vehicle Alternatively, since the specific point is moved according to the information on the driver's direction of travel, it is possible to ensure that the occupant other than the driver recognizes the future behavior of the vehicle or the direction of travel of the vehicle. Attention can be directed to the future behavior of the vehicle or the traveling direction of the vehicle prior to the vehicle, and the head momentum of the occupant can be further reduced.

  According to the first embodiment, a video that gives a visual stimulus that diffuses from a specific line in the display area of the display to the surroundings or a video that gives a visual stimulus that converges from the surroundings to the specific line is displayed, and the future behavior of the vehicle Alternatively, since the specific line is moved according to the information on the driver's intention of traveling direction, it is possible to make sure that the occupants other than the driver recognize the future behavior of the vehicle or the traveling direction of the vehicle. Attention can be directed to the future behavior of the vehicle or the traveling direction of the vehicle prior to the vehicle, and the head momentum of the occupant can be further reduced.

<< Second Embodiment of the Invention >>
In the first embodiment described above, an example in which the driver's traveling direction intention is estimated and the driver's traveling direction intention information is presented to the occupant has been shown. However, the driver's traveling direction is superimposed on other images. A second embodiment in which intention information is presented will be described. In the second embodiment, description of parts similar to those of the first embodiment described above is omitted, and different parts are mainly described.

  FIG. 14 shows the configuration of the second embodiment. In addition, the same code | symbol is attached | subjected with respect to the apparatus similar to the apparatus of 1st Embodiment shown in FIG. 1, and it demonstrates centering around difference. The attention guiding device 41A of the second embodiment is a video for presenting video to the visual stimulus presentation unit 44 in addition to the above-described traveling direction intention estimation device 42, visual stimulus control unit 43, and visual stimulus presentation unit 44. A playback device 45 is provided.

  The layout of the attention guidance device 41A of the second embodiment on the vehicle is the same as the layout of the attention guidance device 41 of the first embodiment described above. For example, the visual stimulus presentation unit 44 is configured using a liquid crystal display, and the liquid crystal display 53 is installed on the back side of the seat of the driver seat 52 of the vehicle 51 as shown in FIG.

  Next, the visual stimulus control method according to the second embodiment will be described. The visual stimulus control unit 43 is installed on the back side of the driver seat 52 based on the driver's traveling direction intention information sent from the traveling direction intention estimation device 42, that is, information on the driver's gaze direction and head direction. The display on the liquid crystal display 53 is controlled.

  In the second embodiment, a vertical stripe image having a low spatial frequency shown in FIG. 15 is used. FIG. 15A shows a display example in which the portions 90 and 92 having the stimulus intensity “weak” and the portions 91 having the stimulus intensity “strong” are alternately presented for nine periods in the horizontal direction on the liquid crystal display 53. When the stimulation intensity period shown in FIG. 15A is expressed as a spatial position in the horizontal direction of the screen of the liquid crystal display 53, it is as shown in FIG. FIG. 15B shows a display example presenting one cycle of the stimulus intensity “strong” at the central portion shown in FIG. That is, one period from the portion 90 of the stimulus intensity “weak” shown in FIG. 15A to the “weak” portion 92 of the next cycle is extracted and displayed.

  Here, if an image that periodically changes the stimulus intensity is presented on the screen, it may not be “strong” or “weak” at the left and right edges of the screen, but the stimulus intensity is “strong” at the center of the screen. As long as it is defined, the stimulus intensity at the left and right ends is not a problem. In general, the “strong” and “weak” portions of the stimulus intensity are “black” and “white”. However, even if other colors have two different colors, they can be substituted. Is possible. Further, the width of the vertical stripes on the screen, that is, the frequency of the periodic change of the stimulation intensity is appropriately about 9 cycles on the screen, but it may be more or less. If the period of the stimulus intensity on the screen is an odd number, the “strong” part comes to the center of the screen, which is suitable for displaying one period.

  The visual stimulus control unit 43 controls the visual stimulus. As described above, the visual stimulus control mainly controls the position of the portion 91 where the stimulus intensity is “strong” at the center of the screen. That is, when it is estimated by the traveling direction intention estimation device 42 that the driver is turning his / her head 10 degrees to the left in the traveling direction, as shown by the arrow in FIG. ”Is moved to the left side as viewed from the passenger, that is, to the left side 53L of the liquid crystal display 53, and control is performed so that the state shown in FIG. When the screen size is defined as horizontal 640 dots × vertical 480 dots, the coordinates of the left end 53L of the liquid crystal display 53 are (0, 0), and the coordinates of the right end 53R are (640, 0), FIG. When the portion 91 of the stimulus intensity “strong” shown in b) is in the center, the horizontal position of the “strong” portion 91 is 320, whereas the “strong” portion 91 shown in FIG. In this case, the horizontal position of the “strong” portion 91 is 160.

  The calculation method of the horizontal position on the screen of the portion 91 of the stimulus intensity “strong” is the same as the calculation method of the horizontal position of the boiling point 71 of the first embodiment, and the description is omitted.

  With the above configuration, the vertical stripe stimulation intensity “strong” portion 91 having a low spatial frequency can be controlled in the left-right direction according to the driver's attention direction, in this second embodiment, the driver's head angle. . In the second embodiment, the display position is controlled by the driver's head angle. However, the gaze angle with respect to the vehicle is measured by simultaneously measuring the driver's head angle and the gaze angle. Therefore, the display position may be controlled by the line-of-sight angle with respect to the vehicle.

  Next, a method for superimposing the visual stimulus on the video content will be described. Although not shown in the figure, a general image editor that superimposes a plurality of images is used to superimpose a video such as a movie or a television and a guidance stimulus that is simply created by a personal computer, for example. When the intensity of the visual stimulus is lowered, it is possible to superimpose visual stimuli having a plurality of cycles as shown in FIG. 15A, but the visual stimulus for one cycle as shown in FIG. If the display area of the inductive stimulus is smaller and the image stimulus is composed of black and white stripes, superimposing the image such as a movie or TV on the white part with low stimulus intensity is easy. The composition allows video to be superimposed.

  In addition, video stimuli such as video may be controlled in the vertical direction so as to create a video that includes a caution induction part in the visual video in the same manner as described above for the occupant's perception.

  Note that the same effect can be obtained even if the above-described visual stimulus display is performed by changing the brightness of a part of the backlight of the liquid crystal display 53, for example. As shown in FIG. 16, backlights are arranged in the vertical direction so that the respective luminances can be controlled individually. FIG. 16A shows a backlight lighting method when attention is directed to the front of the vehicle, and FIG. 16B shows a backlight lighting method when attention is guided to the left of the vehicle. A normal LCD display is designed to eliminate uneven brightness at all locations, but by providing a location 151 with higher brightness than other locations to guide attention, the attention of the occupant is guided without gaze. It becomes possible to do. It is possible to continuously guide the occupant's attention by continuously moving the portion 151 with high luminance.

  In addition, when the occupant is not reproducing anything by the video reproduction device 45, a caution induction stimulus with a clear outline as shown in FIG. 17 may be presented to perform caution induction accompanied by gaze. When it is stopped, the display control may not be performed.

  With the above configuration, it is possible to control visual stimulation according to the driver's intention in the direction of travel, and to guide the attention of the occupants other than the driver to the driver's intention in the direction of travel. A passenger | crew's head momentum can be reduced.

  This second embodiment is intended for vehicles that move in space. For example, in a moving body that is difficult to convey the operator's direction of travel, such as an aircraft, the operator's direction of travel is guided by the operator's direction of travel. Therefore, the effect of stabilizing the head movement of the passengers other than the operator can be expected.

<< Modification of Second Embodiment of Invention >>
A description will be given of a modification in which the direction in which the driver is heading is estimated from the turning angle, the vehicle speed, the vehicle rotation angular velocity, and the like, among the intentions of the driver in the traveling direction. The direction in which the driver is heading can be calculated by the driver's turning angle, the product of the turning angle and the vehicle traveling speed, or the yaw angular velocity of the vehicle.

  FIG. 18 is a conversion map for converting from the turning angle to the intended traveling direction angle. If the steering direction associated with the left turn is negative, the steering direction associated with the right turn is positive, and the neutral position of the steering is 0 degrees, then "steering angle x steering gain", in this case the steering gain Is converted into an intended angle in the traveling direction as “1/3”. For steering angles exceeding ± 90 degrees, the intended traveling direction angle may be fixed at ± 30 degrees, or the traveling direction angle is continuously converted even in the range exceeding the steering angle ± 90 degrees. Also good. Further, the conversion threshold value may be other than ± 30 degrees. In addition, when changing a visual stimulus by calculating a traveling direction intention angle from a turning angle, a threshold may be provided for the vehicle speed, and visual stimulus control or presentation of the visual stimulus may be turned off.

  Next, a method for converting the product of the steering angle and the vehicle traveling speed into the traveling direction intended angle will be described. Although illustration of the conversion map is omitted, the traveling direction angle is calculated by “steering angle × vehicle traveling speed × vehicle traveling speed gain”. By using, for example, “1/30” as the vehicle traveling speed gain, the intended angle in the traveling direction when turning 30 degrees rightward at 60 km / h is 60 degrees, and 30 degrees leftward at 30 km / h. The intended angle in the direction of travel when steered is 30 degrees. In the method of converting the product of the steering angle and the vehicle traveling speed into the traveling direction intended angle, a threshold value may be provided for the vehicle speed to turn off visual stimulus control or presentation of the visual stimulus.

  Next, a method for converting the vehicle yaw angular velocity into the traveling direction intended angle will be described. Although illustration of the conversion map is omitted, the traveling direction angle is calculated by “vehicle yaw angular velocity × yaw rate gain”. By using, for example, “1.5” as the yaw rate gain, when the vehicle rotates at a yaw angular angular velocity of 20 deg / s with rightward turning, the traveling direction intended angle is 30 degrees.

  The visual stimulus control unit 43 controls the visual stimulus according to the travel direction intended angle calculated as described above, and the conversion map shown in FIG. 10 is used to calculate the display position from the travel direction intended angle. Since the conversion method is the same as the method for calculating the display position from the driver's head angle, the description is omitted.

  According to the above-described modification, a visual stimulus that estimates the traveling direction intention from the steering angle, the vehicle speed, the vehicle rotational angular speed, and the like and presents it to the occupant among the traveling direction intentions of the driver. It becomes possible to produce.

<< Experimental results according to the second embodiment and its modification >>
The experimental results when the attention guiding device 41A of the second embodiment is not operated and the experimental results when the attention guiding device 41A is operated are the experimental results according to the first embodiment shown in FIGS. The description is omitted. The first embodiment shown in FIG. 13 also shows an experimental result in which the head momentum of an occupant other than the driver is reduced as the attention direction of the occupant other than the driver approaches the intention of the traveling direction of the driver. And the experiment result by the modified example is the same, and the description is omitted.

  Here, if guidance of the occupant is guided in a form accompanied with gaze, for example, when watching a movie in the vehicle, it will be explained from the distribution of the sight of the occupant that it is difficult to simultaneously guide the occupant and watch the movie. . The line-of-sight distribution was calculated by measuring the eye movement using a general eye movement measuring device and analyzing the recorded video frame by frame. FIG. 19 (a) is a graph showing the line-of-sight distribution ratio when attention is guided by a form accompanied with gaze while watching a movie. When a portion that should be seen when watching a movie such as a person, background, or subtitles in a video is “content” and a specific shape for attention guidance is “guide stimulation”, the time ratio at which the line of sight is on the content is 81. The ratio of the time when the line of sight was on the induced stimulus was 13.44% compared to .91%. The other time ratio component corresponds to the blinking time.

  Next, the attention direction with respect to space will be described. In a driver of a vehicle that moves in space by his / her own intention, the intention of traveling direction coincides with the head and line-of-sight direction. However, in a passenger other than the driver who moves in the space without depending on his / her intention, the traveling direction intention and the head or line-of-sight direction do not always match. Below, the experimental result which suggests that the gaze direction and the attention direction with respect to space do not necessarily correspond is shown. A subject is placed in a dark room, and a screen is provided in front of the subject to present a visual stimulus with a viewing angle of about 60 degrees. In addition, a measuring instrument that measures the tilt of the body is installed at the foot of the subject. The front screen presents a shape for the subject to gaze, the background has a horizontal resolution of 1024, the background color continuously changes from white to black, and 4 in the horizontal direction of the screen. A vertical stripe with a low spatial frequency is used, in which one of the periods is used as a visual stimulus.

  When the vertical stripes were stationary, there was no change in the subject's posture, but when the vertical stripes were moved in the horizontal direction, the body tilted in accordance with the direction of movement. This is probably because the attention direction to the space was induced separately from the gaze direction, so that the consciousness about the space changed and the body tilted. From the above, it is considered that by guiding the attention direction separately from the gaze direction, for example, it is possible to reduce the occupant's head momentum without impairing the visibility of the movie.

  FIG. 20 shows the case where the attention guiding device 41A is not operated (when the invention is not implemented), the case where the attention guiding device 41A is operated and attention is guided without gaze, and the case where the attention guiding device 41A is operated. It is the graph which compared the head movement speed of crew members other than a driver when attention guidance was performed in the form accompanied with gaze. Since this graph is an average of the head movement speed during data acquisition and the data acquisition time is common to both, the head movement speed can be treated as a displacement of the head movement amount.

  When the attention guiding device 41A is not operated (when not in operation), the average head movement speed 141 of the occupant is about 6.5 cm / s, whereas when attention is induced by a form without gaze, The average head movement speed 142 of the occupant is about 3.0 cm / s, and when attention is induced by a form accompanied by gaze, the average 143 of the head movement speed of the occupant is about 2.6 cm / s. . From this experimental result, it was confirmed that the head movement speed of the occupant was reduced by about 50% even in the form without gaze as in the form with gaze. Note that a decrease in the average head movement speed during turning with a constant cycle means a reduction in the amount of head movement.

  Here, it will be described with reference to FIG. 19 (b) showing the line-of-sight distribution during the experiment that the attention guidance during the experiment was performed in a form without gaze. FIG. 19B is a graph showing the line-of-sight distribution ratio when attention is induced in a form that does not involve gazing while watching a movie. If a portion that should be seen when watching a movie such as a person, background, or subtitles in a video is “content” and a specific shape for attention guidance is “guide stimulation”, the time ratio at which the line of sight is on the content is 93. The ratio of time when the line of sight was on the induced stimulus was 0.6% compared to 0.0%. The other time ratio component corresponds to the blinking time. In addition, a shape with a low spatial frequency is used for the induction stimulus, and it is difficult to induce gaze. However, a frame counted when there is a line of sight on the induction stimulus can be seen within 1 minute immediately after the start of the experiment, and then Was almost zero.

  As is apparent from the above line-of-sight distribution, even when the caution direction of the occupant is guided in a form without gaze, the occupant's attention direction approaches the driver's direction of travel, so that the occupants other than the driver The head momentum decreases.

  As described above, according to the second embodiment and its modification, at least the direction of movement, the amount of movement, and the intensity of the visual stimulus that can be perceived without gaze of the occupant according to the driver's direction of travel intention information. Since one change was made to guide the driver's attention to the driver's direction-of-travel intention information, the driver's direction-of-travel intention and the direction of the attention of passengers other than the driver were abbreviated in advance of the vehicle behavior. It is possible to match. As a result, it is possible to reduce head momentum other than the driver. In addition, since the occupant's attention direction is guided by a visual stimulus without gaze, even if a video such as a movie or a TV is displayed on the visual stimulus presentation unit 44, It is possible to reduce the head momentum of passengers other than the driver without hindering viewing of the television.

  Further, since the perceptual stimulus is superimposed on the video reproduced by the video reproduction device 45, for example, when the occupant is watching a movie or a television, the occupant's attention is guided without interrupting the viewing. Is possible.

  Furthermore, according to the video by the video playback device 45, it is possible to switch between a visual stimulus that can be perceived without the gazing of an occupant other than the driver and a visual stimulus that involves the gazing of the occupant. When there is no viewing and nothing is presented on the screen, it is possible to improve the occupant's attention-inducing effect by switching to visual stimulation accompanied by gaze.

  Since the visual stimulus in which the contrast changes in a sine wave shape in the lateral direction of the liquid crystal display 53 is presented, the contrast gradually changes on the display screen, and the occupant's gaze is guided by a shape that hardly induces the occupant's gaze. It becomes possible.

  Of the visual stimuli whose contrast changes in a sine wave shape in the horizontal direction of the liquid crystal display 54, one period from a low contrast portion to an adjacent low portion is presented, so the minimum necessary area of the display screen It is possible to guide the occupant's attention using.

  Since the visual stimulus is presented by the band extending in the vertical direction of the liquid crystal display 53, when guiding the occupant's attention in the lateral direction, the gazing direction of the occupant is at any height on the display screen. Since visual stimuli are presented at the closest position in the horizontal direction, that is, at the same height, efficient attention guidance is possible even for stimuli that do not involve gaze.

  Since the visual stimulus is presented by changing the brightness of each of the multiple backlights, the passenger's attention is only required to control the backlight brightness in the horizontal direction on the screen without controlling the image stimulus on the LCD. It is possible to guide the direction.

Configuration diagram of the first embodiment Layout diagram when adapting the first embodiment to a vehicle Conceptual graph showing the time relationship between gaze movement, head movement, and steering in general driving behavior Explanatory drawing which shows an example of the display method in 1st embodiment Explanatory drawing explaining the advancing direction intention in 1st embodiment Conversion map when moving the display from the head angle in the first embodiment Explanatory drawing explaining the modification of the display method in 1st embodiment. Explanatory drawing explaining the modification of the display method in 1st embodiment. The conversion map figure which showed the advancing direction intention angle calculation method in the modification of 1st embodiment The conversion map figure at the time of moving a display from the advancing direction intention angle in the modification of a first embodiment Experimental result graph showing the head behavior of the driver and passengers other than the driver when the operation of the attention guiding device of the first embodiment is stopped Experimental result graph showing the head behavior of the driver and passengers other than the driver when the attention guidance device of the first embodiment is operated Experimental result graph comparing head movement speed showing the effect of the first embodiment The figure which shows the structure of 2nd embodiment. The figure which shows an example of the display method in 2nd embodiment. The figure which shows the modification of the display method in 2nd embodiment. The figure which shows the modification of the display method in 2nd embodiment. The figure which shows the conversion map for converting into the advancing direction intention angle from a turning angle Graph showing the line-of-sight distribution ratio when attention is induced by a form with gaze while watching a movie and when attention is induced by a form without gaze Caution when the attention guidance device is not operated (when the invention is not implemented), when the attention guidance device is operated and attention is guided without gaze, and when the attention guidance device is operated with gaze A graph comparing head movement speeds of passengers other than the driver when guidance is performed

Explanation of symbols

41, 41A Attention guidance device 42 Advancing direction intention estimation device 43 Visual stimulus control unit 44 Visual stimulus presentation unit 45 Video playback device

Claims (15)

Driver behavior detecting means for detecting the behavior of the driver of the moving body;
A moving body behavior estimating means for estimating a future behavior of the moving body based on a detection result of the driver behavior detecting means;
Video playback means for playing back content video;
The future behavior information of the moving body estimated by the moving body behavior estimating means is converted into a display that gives a visual stimulus to the occupant of the moving body (hereinafter referred to as a stimulus display), and the stimulus display obtained by the conversion is reproduced. Information presentation means that is superimposed on the content video and displayed on the display means and presented to the occupant of the moving body,
In converting the future behavior information of the mobile body into the stimulus display, the information presenting means changes at least one of the motion direction, the momentum, and the intensity of the stimulus display according to the future behavior information ,
The attention induction device according to claim 1, wherein the stimulus display is an image having a low spatial frequency such that a passenger's line-of-sight distribution is smaller than a line-of-sight distribution for the content image . The attention guiding device according to claim 1,
The driver behavior detecting means detects the driver's line-of-sight direction,
The attention guiding apparatus, wherein the moving body behavior estimating means estimates a future behavior of the moving body based on a driver's line-of-sight direction detected by the driver behavior detecting means. In the attention guidance device according to claim 1 or 2,
The driver behavior detecting means detects the head direction of the driver,
The attention guiding apparatus, wherein the moving body behavior estimating means estimates a future behavior of the moving body based on a driver's head direction detected by the driver behavior detecting means. Driver behavior detecting means for detecting the behavior of the driver of the moving body;
Travel direction intention estimation means for estimating the driver's travel direction intention based on the detection result of the driver behavior detection means;
Video playback means for playing back content video;
The traveling direction intention information of the driver estimated by the moving body behavior estimating means is converted into a display (hereinafter referred to as a stimulation display) that gives a visual stimulus to a passenger of the moving body, and the stimulus display obtained by the conversion is converted into the content. An information presenting means that is superimposed on the video and displayed on the display means and presented to the passenger of the moving body,
The information presentation means converts at least one of the direction of movement, the amount of movement, and the intensity of the stimulus display according to the information on the direction of travel of the driver in converting the driver's travel direction intention information into the stimulus display. It is varied,
The attention induction device according to claim 1, wherein the stimulus display is an image having a low spatial frequency such that a passenger's line-of-sight distribution is smaller than a line-of-sight distribution for the content image . In the attention guidance device according to claim 4,
The driver behavior detecting means detects the driver's line-of-sight direction,
The attention direction device estimates the driver's direction of travel intention based on the driver's line-of-sight direction detected by the driver behavior detector. In the attention guidance device according to claim 4 or 5,
The driver behavior detecting means detects the head direction of the driver,
The attention direction device estimates the driver's direction of travel intention based on the driver's head direction detected by the driver behavior detecting means. In the attention guidance device according to any one of claims 1 to 6 ,
The information presenting means displays, as the stimulus display, a video that gives a visual stimulus that diffuses from a specific point in the display area of the display means to the surroundings, or a video that gives a visual stimulus that converges from a surrounding to a specific point, An attention guiding apparatus that moves the specific point according to information. In the attention guidance device according to any one of claims 1 to 6 ,
The information presenting means displays, as the stimulus display, an image that gives a visual stimulus that diffuses from a specific line in the display area of the display means to the surroundings, or an image that gives a visual stimulus that converges from the surroundings to a specific line, An attention guiding apparatus that moves the specific line according to information. In the attention guidance device according to any one of claims 1 to 8 ,
The information presenting means is capable of switching between a first display form in which the content video and the stimulus video are superimposed and a second display form in which only the stimulus video is displayed. . Driver behavior detecting means for detecting the behavior of the driver of the moving body;
A moving body behavior estimating means for estimating a future behavior of the moving body based on a detection result of the driver behavior detecting means;
Video playback means for playing back content video;
The future behavior information of the moving body estimated by the moving body behavior estimating means is converted into a display that gives a visual stimulus to the occupant of the moving body (hereinafter referred to as a stimulus display), and the stimulus display obtained by the conversion is reproduced. Information presentation means that is superimposed on the content video and displayed on the display means and presented to the occupant of the moving body,
The information presenting means changes at least one of the motion direction, the momentum, and the intensity of the stimulus display according to the future behavior information when converting the future behavior information of the mobile body into the stimulus display , and The information guide means presents a visual stimulus whose contrast changes in a sine wave shape in the lateral direction of the display means . Driver behavior detecting means for detecting the behavior of the driver of the moving body;
Travel direction intention estimation means for estimating the driver's travel direction intention based on the detection result of the driver behavior detection means;
Video playback means for playing back content video;
The traveling direction intention information of the driver estimated by the moving body behavior estimating means is converted into a display (hereinafter referred to as a stimulation display) that gives a visual stimulus to a passenger of the moving body, and the stimulus display obtained by the conversion is converted into the content. An information presenting means that is superimposed on the video and displayed on the display means and presented to the passenger of the moving body,
The information presentation means converts at least one of the direction of movement, the amount of movement, and the intensity of the stimulus display according to the information on the direction of travel of the driver in converting the driver's travel direction intention information into the stimulus display. Further , the information presenting means presents a visual stimulus whose contrast changes in a sine wave shape in the lateral direction of the display means . In the attention guidance device according to claim 10 or 11,
The information presenting means presents one period from a low contrast part to an adjacent low part of a visual stimulus whose contrast changes in a sine wave shape in the lateral direction of the display means. apparatus. In the attention guidance device according to any one of claims 1 to 11,
The information guide means presents a visual stimulus by a band extending in the vertical direction of the display means. Detecting the behavior of the driver of the moving object,
Based on the detection results, the future behavior of the moving object is estimated,
Convert the estimated future behavior information of the moving body into a display that gives visual stimulus to the occupant of the moving body (hereinafter referred to as the stimulus display),
When the stimulus display is displayed on the display means and presented to the occupant of the moving body, the stimulus display is reproduced by changing at least one of the motion direction, the momentum, and the intensity of the stimulus display according to the future behavior information of the moving body. A method for guiding attention by superimposing the content image and the stimulus display ,
The attention guiding method, wherein the future behavior information or the traveling direction intention information is converted into a stimulus display having a low spatial frequency such that the sight line distribution of the occupant is smaller than the sight line distribution for the content video . Detecting the behavior of the driver of the moving object,
Based on the detection result, the driver's intention to travel is estimated,
Convert the estimated driver's direction of travel intention information into a display that gives a visual stimulus to a moving vehicle occupant ( hereinafter referred to as a stimulus display),
When displaying the stimulus display on the display means and presenting it to the occupant of the moving body, reproduction is performed by changing at least one of the motion direction, the amount of exercise, and the intensity of the stimulus display according to the driver's traveling direction intention information. An attention guidance method for superimposing and displaying the content image and the stimulus display ,
The attention guiding method, wherein the future behavior information or the traveling direction intention information is converted into a stimulus display having a low spatial frequency such that the sight line distribution of the occupant is smaller than the sight line distribution for the content video .

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