JP2008189253A - Anti-glare control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an anti-glare control device capable of reducing the positioning of a shading unit on a shading position when unnecessary. <P>SOLUTION: An anti-glare control system comprises a forward image pickup camera 11 installed with its lens directed forward of a mounting vehicle 5, a shading device constituted around a sun visor 14 installed on a top plate 7 in a cabin, and an anti-glare control ECU 10 for controlling a shading device 15 based on information acquired by the forward image pickup camera 11. A regulation area is preset as an area corresponding to the view field of a driver when the driver directs his sight line toward a fixation point in a forward picked-up image picked up by the forward image pickup camera 11. When a high-brightness pixel is projected in the regulation area, the anti-glare control ECU 10 determines that the solar beam is incident, moves the sun visor 14 to the position between the shading position and the releasing position, or the shading position to realize a shaded state for shading the incident light on eyes of the occupant through a windshield 6. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an anti-glare control device that reduces light entering a passenger's eyes.

  Conventionally, detection means for detecting the position of the eyes of the driver of the vehicle, navigation for acquiring the traveling direction of the vehicle, the current date and time, and the current position of the vehicle (ie, latitude and longitude) and estimating the position of the sun Drives the light-shielding part (for example, a sun visor or a liquid crystal shield) configured to be movable between the device, a light-shielding position that covers the windshield upper part, and a release position that does not cover the windshield upper part Driving unit (for example, a motor for driving the sun visor, a circuit for applying a voltage to the liquid crystal shield in order to change the shield range (ie, the area covering the windshield)), and the operation detected by the detection means An anti-glare control device having control means for controlling a light shielding device based on a relative position that is a positional relationship between the position of a person's eyes and the position of the sun estimated by a navigation device is known. And are (for example, see Patent Documents 1 and 2).

In this type of anti-glare control device, when the relative position indicates that the sun exists in the field of view of the driver who is driving the vehicle (hereinafter, this state is referred to as a light incident state), the release position The drive unit is controlled so that the light shielding part moves from the light shielding position to the light shielding position.
JP 2002-331835 A JP 2006-219008 A

  By the way, for example, when a vehicle is traveling around a high-rise building, even if the relative position indicates that it is in a light incident state, sunlight is blocked by the high-rise building. There is no need to move the vehicle to the vehicle (that is, sunlight is not entering the driver's eyes).

  However, since the conventional anti-glare control device controls the drive unit based only on the relative position, the drive is actually performed even in a situation where the light shielding unit does not need to be located at the light shielding position. There is a problem that the light-shielding part is moved to the light-shielding position.

  For this reason, in the conventional anti-glare control device, the driver's field of view is narrowed by the light-shielding part moved to the light-shielding position when unnecessary, or an operation for returning the light-shielding part to the release position is necessary, etc. There was a problem that made the driver feel bothersome.

  Therefore, an object of the present invention is to provide an anti-glare control device that can reduce the position of a light shielding portion at a light shielding position when unnecessary.

  In the anti-glare control device of the present invention made to achieve the above object, the light blocking means has a light blocking state and a light blocking state for blocking incident light that passes through the windshield of the vehicle and is about to enter the eyes of the occupant. The released state is configured such that the released state can be realized, and the first imaging unit captures a captured image including at least the front of the vehicle. Then, a position where the occupant's line of sight is highly likely to be pointed at the time of driving the vehicle is set in advance in a captured image corresponding to the sight of the occupant when the line of sight of the vehicle occupant is directed to the point of sight When the area is set as the prescribed area and the control means includes a high-brightness object having a prescribed brightness or higher in the prescribed area of the photographed image taken by the first photographing means, The light shielding means is controlled so that

  Therefore, according to the anti-glare control device of the present invention, regardless of the relative position between the position of the driver's eyes and the position of the sun, the light-blocking state is actually performed only when a high-luminance object is reflected in the specified area. Thus, when a high-brightness object is not reflected in the defined area (for example, when sunlight is blocked by a building), the release state is established, and therefore it is possible to prevent the light-shielding state from being generated when it is unnecessary.

  As a result, according to the anti-glare control device of the present invention, the occupant is in a light-shielded state when not needed, and the occupant's field of view is narrowed or an operation for returning the light-shielding means to the released state is required. Can reduce annoying thoughts.

  Further, in the anti-glare control device of the present invention, as described in claim 2, the second photographing unit photographs a facial image including the occupant's face, and the line-of-sight detecting unit is photographed by the second photographing unit. Based on the facial image, the occupant's line of sight is detected, and the control means captures a high-luminance object having a predetermined brightness or higher in the specified area of the captured image captured by the first imaging means, and detects the line of sight. This indicates that the occupant's line of sight detected by the means has been deviated from the point of sight, and the greater the amount of sight line variation from the line of sight when directed toward the point of sight, the greater the degree of shading that represents the degree to block incident light. The light shielding means may be configured to control the light shielding state with a higher light shielding degree from among the light shielding states in which a plurality of stages are set in advance.

  According to the anti-glare control device of the present invention configured as described above, the larger the amount of change in the line of sight when the sight line of the occupant is deviated from the gazing point (that is, the more the occupant feels dazzling), the more The light-shielding means is controlled so that the light-shielding state with a higher light-shielding degree is realized (that is, feedback based on the sight of the passenger). Control), it is possible to prevent a light-blocking state having a higher light-blocking degree than necessary. As a result, according to the anti-glare control device of the present invention, the field of view of the occupant is ensured to the maximum so that the occupant's field of view is not deteriorated more than necessary (that is, the light-shielded area is reduced or the light transmittance is reduced). Can be reduced (ie, it feels dazzling).

  Further, when the vehicle is provided with a lane keeping assist system that assists driving so that the vehicle continues to travel in the currently traveling lane, the first photographing means in the anti-glare control device of the present invention is: As described in claim 3, in order for the lane keeping assist system to recognize the traveling lane of the host vehicle, it is desirable to share a camera provided to photograph the front of the host vehicle.

  According to a fourth aspect of the present invention, the first photographing means in the anti-glare control device of the present invention is provided in an overhead module attached to the top plate of the vehicle or in the vehicle interior of the vehicle and faces the windshield. It may be fixed to the back of the room mirror.

  The overhead module mentioned here is equipped with a vehicle interior light that irradiates light into the vehicle interior, a switch for operating the vehicle interior light, etc., and generally supports the room mirror. The supporting shaft to be arranged is arranged in the vicinity of the projecting top plate.

  By the way, as described in claim 5, the light shielding means in the antiglare control device of the present invention is movable between a light shielding position covering the windshield upper portion and a release position not covering the windshield upper portion. The sun visor provided on the top plate in the passenger compartment and the sun visor are driven, and the sun visor is located at the light shielding position to realize the light shielding state, and the sun visor is located at the release position to realize the release state. The liquid crystal device may be configured by driving means, or may be provided on an upper portion of a windshield in a vehicle interior to realize a light-shielding state by reducing light transmittance by application of a voltage. You may be comprised by the shield.

Embodiments of the present invention will be described below with reference to the drawings.
<overall structure>
FIG. 1 is an explanatory diagram showing the interior of a vehicle equipped with an anti-glare control system to which the present invention is applied (hereinafter, a vehicle equipped with this anti-glare control system is referred to as an on-board vehicle). .

  The anti-glare control system directs the lens toward the front of the mounted vehicle 5 and directs the lens toward the front photographing camera 11 installed on the top plate 7 in the vehicle interior and the driver seat or passenger seat provided in the vehicle interior. A driver monitoring camera 12 installed on the instrument panel of the mounted vehicle 5, a light shielding device 15 (see FIG. 2) configured around a sun visor 14 installed on the top plate 7 in the vehicle interior, An anti-glare control ECU 10 (see FIG. 2) that controls the light shielding device 15 based on information acquired by the photographing camera 11 and the driver monitoring camera 12 is provided.

  The sun visor 14 is located on the driver's seat side and the passenger's seat side that are separated by a predetermined distance from the center in the vehicle width direction, and one sun visor 14 is located near the boundary between the top plate 7 and the windshield 6. It is installed one by one.

  The front camera 11 is provided in the mounted vehicle 5 after being housed in an overhead module provided with a vehicle compartment light that irradiates light into the vehicle interior and a switch for operating the vehicle compartment light. The support shaft for supporting the rearview mirror is in the vicinity of the top plate 7 on which the support shaft protrudes (that is, the position on the top plate 7 that is the boundary between the windshield 6 and the top plate 7), the driver's seat side, and the assistant It is installed between the sun visors 14 installed on the seat side (that is, the center in the vehicle width direction).

Here, FIG. 2 is a block diagram showing a schematic configuration of the anti-glare control system.
<Driver surveillance camera>
Next, the driver monitoring camera 12 captures a predefined range including a face of the driver of the mounted vehicle 5, and a captured image captured by the imaging unit 12a (hereinafter referred to as a facial image). And an image processing unit 12b for image processing.

  The imaging unit 12a includes a light receiving unit including a CCD element or a CMOS element. The light receiving unit receives light through a lens to capture a digital image and capture a captured digital image (that is, a facial image). It is configured to be sent to the image processing unit 12b.

  The image processing unit 12b is configured around a known microcomputer including at least a ROM, a RAM, and a CPU, and determines the position of the driver's pupil based on a facial image captured by the imaging unit 12a. A reference position setting process for detecting and setting a reference position, and estimating the direction of the driver's line of sight according to the reference position set in the reference position setting process, and the estimation result (hereinafter referred to as the line-of-sight estimation result) is anti-glare. The line-of-sight estimation process sent to the control ECU 10 is configured to be executable.

  Specifically, in the reference position setting process in the present embodiment, the position of the driver's pupil in the facial image is detected for each facial image captured by the imaging unit 12a. Then, among the detected pupil positions, the positions of the pupils detected within a predetermined time from the start of driving are averaged, and the averaged result (that is, the averaged pupil positions) is displayed by the driver. The reference position representing the position of the pupil when the line of sight is directed to the gazing point is stored in the RAM. Note that the gaze point referred to here is a position in front of the mounted vehicle where the driver's line of sight is likely to be directed during driving.

  In the line-of-sight estimation process in the present embodiment, if the position of the pupil detected from the sequentially captured facial images is located within a predetermined range that is defined in advance from the reference position, the driver looks at the gaze point. The gaze estimation result is transmitted as if it is forward vision (that is, the gaze is directed toward the gazing point) (that is, the gaze estimation signal representing the gaze estimation result is set to a high level). On the other hand, if the position of the pupil detected from the sequentially captured facial images is outside the specified range, the driver sends a gaze estimation result assuming that the driver is not looking forward (that is, the gaze estimation signal is set to a low level). ).

However, since the reference position setting process and the line-of-sight estimation process are well-known techniques, further detailed description thereof is omitted.
The driver monitoring camera 12 may be dedicated to the anti-glare control system 1 or may be used in a known sleepiness warning device that detects a driver's sleepiness and issues a warning, and displays an image including the driver's face. You may share the camera to shoot.
<Shading device>
Next, the light shielding device 15 includes a sun visor 14 and a motor 13 that drives the sun visor 14.

  The sun visor 14 is embedded in the light shielding plate along the longitudinal direction of the light shielding plate such that the opaque light shielding plate formed in a rectangular shape and one end protrudes from the light shielding plate and the other end is exposed from the light shielding plate. The rotating shaft (hereinafter, one end of the rotating shaft protruding from the light shielding plate is referred to as a rotating end), and the rotating end and the other end are supported so that the rotating shaft is rotatable. And a support part. In other words, the sun visor 14 is supported by the support portion so that the rotation shaft is rotatable, so that the sun visor 14 faces the windshield 6 of the mounted vehicle 5 and covers the upper portion of the windshield 6 from the interior of the vehicle. The light shielding plate is configured to be movable between a release position that faces the top plate 7 of 5 and does not cover the top of the windshield 6.

  Therefore, in the sun visor 14, the light shielding plate is located between the light shielding position and the release position, or at the light shielding position, so that the light incident through the windshield 6 and incident on the passenger's eyes is shielded. Is realized.

The motor 13 is connected to one rotation end of the sun visor 14 and is configured to rotate the rotation shaft in response to a drive signal from the anti-glare control ECU 10.
<Front camera>
Next, the front photographing camera 11 includes an imaging unit 11a that captures a predetermined range in front of the mounted vehicle 5, and an image processing unit 11b that performs image processing on the captured image captured by the imaging unit 11a.

  The imaging unit 11a includes a light receiving unit made up of a CCD element or a CMOS element. The light receiving unit receives light through a lens to capture a digital image and take a digital image (that is, a front shot image). Is sent to the image processing unit 11b.

  The image processing unit 11b is configured around a known microcomputer including at least a ROM, a RAM, and a CPU, and sunlight enters the eyes of the driver of the mounted vehicle 5 based on the front photographed image. It is configured to be able to execute a sunlight detection process in which it is estimated whether or not it is in the sunlight incident state and the estimation result (hereinafter referred to as the sunlight incident result) is sent to the anti-glare control ECU 10.

  Here, as shown in FIG. 3, the front-captured image captured by the front-facing camera 11 is the road on which the mounted vehicle is traveling and the sky (that is, the sun is visible) that the driver of the mounted vehicle is viewing. The scenery in front of the mounted vehicle including at least the area where there is a possibility of indentation) is reflected. Further, the forward captured image corresponds to the visual field of the driver when the driver is looking toward the gazing point in the region above the horizon (that is, the region where the sky is reflected). A prescribed area is preset as the area.

  Specifically, in the sunlight detection process, a high-luminance pixel (that is, the sun, for example, if the luminance value has 256 gradations) is saturated in a predetermined area in the forward shot image. Is determined to be in the sunlight incident state. Then, a sunlight incident result (that is, a sunlight incident signal representing the sunlight incident result is set to a high level) indicating that it is in a sunlight incident state is sent to the anti-glare control ECU 10. Further, if there is no high-luminance pixel in the specified region, a sunlight incident result indicating that the sunlight incident state is not present (that is, the sunlight incident signal is set to a low level) is sent to the anti-glare control ECU 10. .

  That is, when the high-intensity pixel is reflected in the prescribed area in the front-captured image, the front-capture camera 11 sends the sunlight incidence result to the anti-glare control ECU 10 as being in the sunlight-incidence state. It is configured.

Note that the front photographing camera 11 in this embodiment is used in a well-known lane keeping assist system that controls steering or issues a warning to the driver so that the mounted vehicle does not deviate from the traveling lane. The camera for photographing the front of the vehicle including the vehicle and recognizing the driving lane is shared.
<Shading control processing>
Next, the anti-glare control ECU 10 includes a ROM 10a for storing a processing program, a RAM 10b for temporarily storing data, and a CPU 10c for executing processing according to the processing program. Based on the incident result and the line-of-sight estimation result sent from the driver monitoring camera 12, a light-shielding control process for controlling the light-shielding device 15 so that sunlight does not enter the driver's eyes can be executed.

Here, FIG. 4 is a flowchart showing a processing procedure of the light shielding control processing.
This shading control process is started when the engine of the mounted vehicle 5 is started.
When the shading control process is started, first, in S110, it is confirmed whether or not the sunlight incident result received from the front photographing camera 11 is in the sunlight incident state. Proceed to Specifically, in this embodiment, if the sunlight incident signal from the front photographing camera 11 is at a high level, it is determined that the sunlight is incident, and the process proceeds to S120.

  Further, in S120, a drive signal is sent to the motor 13 for a first specified time specified in advance. Upon receiving the drive signal, the motor 13 rotates the rotation axis of the sun visor 14 for a first specified time, and the area covering the upper part of the windshield 6 is smaller than the light shielding position, and the windshield 6 has a smaller area than the release position. The light shielding plate of the sun visor 14 is disposed at a semi-light shielding position with a large area covering the upper part. However, when the process proceeds to S120 through S130 described later, the drive signal is not sent to the motor 13 and the light shielding plate of the sun visor 14 is maintained at the current semi-light-shielding position.

  In subsequent S <b> 130, it is determined whether or not the gaze estimation result received from the driver monitoring camera 12 represents that the driver is looking forward. Specifically, in the present embodiment, if the line-of-sight estimation signal from the driver monitoring camera 12 is at a high level, it is assumed that the driver is looking forward, and the position of the light shielding plate of the sun visor 14 is set to the current semi-light-shielding position. If the line-of-sight estimation signal is at a low level, the process proceeds to S140, assuming that the driver is dazzling and diverts his line of sight.

  In S140, a drive signal (hereinafter, the drive signal sent in S140 is referred to as an additional drive signal) is sent to the motor 13 for a second specified time specified in advance. Upon receiving the additional drive signal, the motor 13 rotates the rotation axis of the sun visor 14 for a second specified time, and the sun visor 14 is placed at a semi-light-shielding position closer to the light-shielding position than the currently located semi-light-shielding position. A light shielding plate is arranged. However, when S140 is executed a plurality of times and the light shielding plate of the sun visor 14 is located at the light shielding position, the additional drive signal is not sent and the position of the light shielding plate of the sun visor 14 is maintained at the light shielding position.

Then, the process returns to S130.
By the way, if the result of the confirmation in S110 is not the sunlight incident state (that is, the sunlight incident signal is at a low level), the process proceeds to S150.

  In S150, based on the current position of the light shielding plate of the sun visor 14, the driving time of the motor 13 (hereinafter referred to as return time) necessary to return the light shielding plate of the sun visor 14 to the release position is calculated. A return signal is sent to the motor 13 so that the motor 13 rotates reversely during the return time. Upon receiving the return signal, the motor 13 reversely rotates the rotating shaft of the sun visor 14 for the return time, and arranges the light shielding plate of the sun visor 14 at the release position. However, if the light shielding plate of the sun visor 14 is arranged at the release position at the time of proceeding to S150, the return signal is not sent and the state is maintained.

That is, in the shading control process, when the sunlight incident result from the front photographing camera 11 is in the sunlight incident state, the shading plate of the sun visor 14 is moved to the semi-shielding position, and the driver feels dazzling in that state. If the line of sight is diverted, the light shielding plate of the sun visor 14 is moved so as to be closer to the light shielding position than the current semi-light shielding position. Furthermore, when the sunlight incident result from the front photographing camera 11 is not in the sunlight incident state, the light shielding plate of the sun visor 14 is returned to the release position.
[Effect of the embodiment]
As described above, according to the anti-glare control system 1 of the present embodiment, a high-luminance object is not reflected in the specified region regardless of the relative position between the driver's eye position and the sun position ( For example, when the sunlight is blocked by the building), the sun visor 14 is returned to the release position, so that the sun visor 14 can be prevented from being located at the semi-light-shielding position or the light-shielding position when unnecessary. .

  Furthermore, according to the anti-glare control system 1, the longer the time during which the driver's line of sight is diverted from the point of sight (that is, the more the passenger feels dazzling), the half the sun visor 14 is currently located. Since feedback control is performed so as to approach the light shielding position from the light shielding position, it is possible to prevent the sun visor 14 from approaching the semi-light shielding position closer to the light shielding position than necessary. As a result, according to the anti-glare control system 1, the driver's field of view is ensured to the maximum (that is, the area to be shielded from light is reduced) so that the driver's field of view is not worse than necessary. It is possible to reduce discomfort (that is, feel dazzling).

  That is, according to the anti-glare control system 1, the sun visor 14 is located in the semi-light-shielding position or the light-shielding position when not necessary, and the sight of the occupant is narrowed, or the sun visor 14 is returned to the release position The need for this operation can reduce annoying passengers.

  Further, according to the anti-glare control system 1, when a high-luminance object is reflected in the specified area, the sun visor 14 is driven so that sunlight does not enter the driver's eyes. The need to operate the sun visor 14 can be eliminated.

In addition, according to the anti-glare control system 1, since the front camera 11 is shared with the camera used for the lane keeping assist system, the number of parts of accessories mounted on the vehicle can be reduced, Cost can be reduced.
[Other Embodiments]
As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, In the range which does not deviate from the summary of this invention, it is possible to implement in various aspects.

For example, the front photographing camera 11 of the above embodiment shares the camera used for the lane keeping system, but may be provided exclusively for the anti-glare control system 1.
Further, the front photographing camera 11 in the above embodiment is housed in the overhead module and is disposed near the top plate 7 on which the support shaft for supporting the rearview mirror is projected, but is not housed in the overhead module. Good. Furthermore, the position where the front photographing camera 11 is disposed is not limited to the position of the above-described embodiment, and may be installed on the rear surface of the rearview mirror facing the windshield 6, or on the instrument panel or The front grill may be provided. That is, the installation position of the front photographing camera 11 may be any position as long as the front of the mounted vehicle including the driver's field of view when the driver is looking at the gaze point can be included in the photographed image. It may be.

  And in the anti-glare control system 1 in the said embodiment, although the sunlight detection process was performed with the front imaging | photography camera 11, and the gaze estimation process was performed with the driver | operator monitoring camera 12, in the anti-glare control ECU10, Light detection processing and line-of-sight estimation processing may be executed. However, in this case, the front shooting camera 11 needs to be configured to send a front shot image and the driver monitoring camera 12 is configured to send a face image to the anti-glare control ECU 10.

  Furthermore, in the line-of-sight estimation process in the above embodiment, the direction of the driver's line of sight is estimated from the position of the driver's pupil in the facial image, but the method of estimating the direction of the driver's line of sight is not limited to this. For example, the direction of the driver's line of sight may be estimated from the inclination of the driver's face or the like. Furthermore, in the above embodiment, it is estimated that the driver feels dazzling from the direction of the driver's line of sight, but the method of estimating that the driver feels dazzling is not limited to this. For example, it may be estimated from the degree of opening of the driver's eyelid based on the face image (that is, the distance between the upper eyelid and the lower eyelid, hereinafter referred to as the eye opening) If the distance is equal to or less than a predetermined distance, it may be treated as if the driver feels dazzling). In other words, any method may be used in the line-of-sight estimation process as long as it is possible to detect that the driver feels dazzling.

  Further, in the light shielding control process in the above embodiment, when the sunlight incident state is detected, first, the light shielding plate of the sun visor 14 is disposed at the semi-light-shielding position. As soon as is detected, the light shielding plate of the sun visor 14 may be arranged at the light shielding position. In this case, the driver monitoring camera 12 may be omitted.

  Even in the anti-glare control system configured as described above, the sun visor 14 is positioned at the light shielding position only when the sunlight is incident, and the sunlight is not shielded by the building (for example, by the building). When the sun visor 14 is not necessary, the sun visor 14 can be prevented from being in the light shielding position. As a result, it is possible to prevent the driver's field of view from being narrowed when the light shielding plate is in the light shielding position when unnecessary, and it is necessary for the driver to perform an operation for returning the light shielding plate to the release position. There is no. For this reason, it is possible to reduce annoying the driver.

  In the anti-glare control system 1 in the above embodiment, the light shielding device provided on the driver side has been described as performing light shielding control. However, the light shielding device provided on the passenger seat side may be controlled to be light-shielded. The light shielding devices on both the passenger side and the passenger seat side may be controlled to block light.

  In addition, although the light-shielding device 15 in the said embodiment was comprised from the sun visor 14 and the motor 13, the structure of the light-shielding device 15 is not restricted to this. For example, a liquid crystal shield that is disposed so as to cover the upper portion of the windshield 6 and whose light transmittance is changed by application of a voltage may be used.

It is explanatory drawing which showed the vehicle interior of the vehicle carrying an anti-glare control system. It is a block diagram which shows schematic structure of an anti-glare control system. It is explanatory drawing for demonstrating the prescription | regulation area | region in a front picked-up image. It is a flowchart which shows the process sequence of a glare-proof control process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Anti-glare control system 5 ... Mounted vehicle 6 ... Windshield 7 ... Top plate 10 ... Anti-glare control ECU 10a ... ROM 10b ... RAM 10c ... CPU 11 ... Front photographing camera 12 ... Driver monitoring camera 11a, 12a ... Imaging part 11b, 12b ... Image processing unit 13 ... Motor 14 ... Sun visor 15 ... Shading device

Claims (6)

A light-shielding means capable of realizing a light-shielding state that shields incident light that passes through the windshield of the vehicle and enters the eyes of an occupant, and a release state that releases the light-shielding state;
First photographing means for photographing a photographed image including at least the front of the vehicle;
A position in which the occupant's line of sight is highly likely to be pointed at the time of driving the vehicle is set as a gazing point, and the captured image corresponding to the sight of the occupant when the line of sight of the occupant of the vehicle is directed toward the gazing point When a high-brightness object having a predetermined brightness or higher is reflected in the specified area of the captured image captured by the first imaging unit with the set area as the specified area, the light shielding state is set. An anti-glare control device comprising control means for controlling the light shielding means. A second photographing means for photographing a face image including the face of the passenger;
Line-of-sight detecting means for detecting the line of sight of the occupant based on the facial image photographed by the second photographing means,
In the light shielding state realized by the light shielding means, a plurality of stages are set in advance according to a light shielding degree representing a degree of shielding the incident light,
The control means includes
A high-brightness object having a predetermined brightness or higher is reflected in the specified area of the captured image captured by the first imaging unit, and the sight line of the occupant detected by the gaze detection unit is deviated from the gazing point. The shading means is controlled so that the shading state is higher as the degree of fluctuation of the line of sight from the line of sight when directed toward the gazing point is larger. The anti-glare control device according to claim 1. The vehicle is equipped with a lane keeping assist system that assists driving so that the vehicle continues to travel in the currently running lane,
The first photographing means includes
The anti-glare control according to claim 1 or 2, wherein the lane keeping assist system shares a camera provided to photograph the front of the host vehicle so as to recognize a traveling lane of the host vehicle. apparatus. The first photographing means includes
4. An overhead module mounted on a top plate of the vehicle or a rear surface of a rearview mirror provided in a vehicle interior of the vehicle and facing a windshield. An anti-glare control device according to claim 1. The shading means is
A sun visor provided on the top plate in the vehicle interior so as to be movable between a light shielding position covering the windshield upper part and a release position not covering the windshield upper part,
Driving means for driving the sun visor, realizing the light shielding state by positioning the sun visor at the light shielding position, and realizing the release state by positioning the sun visor at the release position. The anti-glare control device according to claim 1, wherein: The shading means is
5. The liquid crystal shield according to claim 1, wherein the liquid crystal shield is provided on an upper portion of a windshield of the vehicle interior and realizes the light shielding state by reducing light transmittance by application of voltage. The anti-glare control device described.

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