AR glasses overlay display control device

Abstract

To provide a superposition display control device for AR glasses that, even when the head of a driver wearing the AR glasses moves, can display an object image at a set display position located at a predetermined relative position to a specific part of a vehicle and can reduce an operation load on the AR glasses.SOLUTION: A superposition display control device for AR glasses comprises: a display unit 32 that is provided on AR glasses worn on the head of a driver, and displays an object image OP so as to reduce a difference between a display position the object image and a set display position located at a predetermined relative position to a standard position SP that is a position of a specific part 13A being a part of an interior member of a vehicle; and a display position adjustment section that primarily adjusts the display position to as to reduce a difference between the display position and the set display position in the display unit on the basis of a behavior of the AR glasses estimated by an estimation section provided in the AR glasses, and secondarily adjusts the display position so as to match the display position and the set display position with each other, on the basis of the standard position recognized by a standard position recognition section provided in the AR glasses.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a superimposed display control device for AR glasses (Augmented Reality). [Background technology]

[0002] Patent Document 1 listed below discloses an invention that estimates the relative behavior of the head of a vehicle occupant based on the behavior of the vehicle and the behavior of the head of the vehicle occupant.

[0003] Assume that an occupant gets into a vehicle wearing AR glasses on his / her head, and an object image (icon, hologram) showing predetermined information related to the vehicle is displayed on a display unit of the AR glasses. The display position of the object image on the display unit is set based on the position of a specific part constituting a part of an interior member of the vehicle, for example. That is, the display position of the object image on the display unit is set so that the occupant recognizes that the display position of the object image is at a predetermined relative position with respect to the specific part. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2017-077296 A Summary of the Invention [Problem to be solved by the invention]

[0005] When an occupant of the vehicle of Patent Document 1 wears AR glasses, it is conceivable that the AR glasses adjust the display position of the object image based on the relative behavior of the head with respect to the vehicle. However, when the display position of the object image is adjusted by this method, there is a high possibility that the display position of the object image with respect to the specific part will deviate from the above-mentioned relative position.

[0006] On the other hand, it is conceivable that the position of a specific part is always recognized by the computing device mounted on the AR glasses performing image processing on the photographed data acquired by the camera mounted on the AR glasses. In this case, since the position of the specific part can be always recognized, it is possible to set the display position of the object image relative to the specific part to the above-mentioned relative position. However, the computing capacity of the computing device mounted on the AR glasses is generally low. Therefore, it is not preferable to always have the computing device execute image processing, which is a process with a high computational load.

[0007] Taking into consideration the above-mentioned facts, the present invention aims to provide an overlay display control device for AR glasses that can display an object image at a set display position that is located in a predetermined relative position to a specific part of the vehicle, even when the head of a occupant wearing AR glasses moves, and that can reduce the computational load of the AR glasses. [Means for solving the problem]

[0008] The superimposed display control device for AR glasses according to claim 1 includes a first detection unit provided in a vehicle and configured to detect a behavior of the vehicle, a second detection unit provided in AR glasses worn on the head of an occupant of the vehicle and configured to detect a behavior of the AR glasses, an estimation unit provided in the AR glasses and configured to estimate a relative behavior of the AR glasses with respect to the vehicle at a predetermined first frequency based on a difference between a detection value of the first detection unit and a detection value of the second detection unit, and a second detection unit provided in the AR glasses and constituting a part of an interior member of the vehicle. And located forward of the AR glassesThe present invention relates to a method for adjusting a display position of a specific part of an AR glass, the method comprising: a reference position recognition unit that recognizes a reference position, which is the position of the specific part, based on the shooting data when a camera provided in the AR glasses captures the specific part; a display unit provided in the AR glasses that displays an object image so that a difference between a set display position located at a predetermined relative position with respect to the reference position and a display position of an object image representing predetermined information is reduced; and a display position adjustment unit provided in the AR glasses that primarily adjusts the display position so that a difference between the display position on the display unit and the set display position is reduced based on the behavior of the AR glasses estimated by the estimation unit, and secondarily adjusts the display position so that the display position coincides with the set display position based on the reference position recognized by the reference position recognition unit.

[0009] In the superimposed display control device for AR glasses described in claim 1, a display position adjustment unit provided in the AR glasses primarily adjusts the display position of the object image on the display unit based on the behavior of the AR glasses estimated by the estimation unit so as to reduce the difference between the display position on the display unit and the set display position. Therefore, the display position of the object image after the primary adjustment is more likely to be closer to the set display position than the display position before the primary adjustment.

[0010] Furthermore, the display position adjustment unit secondarily adjusts the display position based on the reference position recognized by the reference position recognition unit so that the display position coincides with the set display position. Therefore, the display position of the object image after the second adjustment becomes the set display position.

[0011] Furthermore, in general, the calculation load on the estimation unit is small when estimating the behavior of the AR glasses based on the difference between the detection value of the first detection unit and the detection value of the second detection unit. Furthermore, the reference position recognition unit generally executes the recognition process of the reference position based on the shooting data, which generally has a larger calculation load than the estimation process of the behavior of the AR glasses, at a second frequency lower than the first frequency. Therefore, the calculation load on the AR glasses can be reduced. Effect of the Invention

[0012] As described above, the overlay display control device for AR glasses of the present invention has the excellent effect of being able to display an object image at a set display position that is located in a predetermined relative position to a specific part of the vehicle, even when the head of a passenger wearing the AR glasses moves, and of being able to reduce the computational load on the AR glasses. [Brief description of the drawings]

[0013] [Figure 1] 1 is a schematic side view showing the interior of a vehicle to which an overlay display control device for AR glasses according to an embodiment is applied. [Diagram 2] 2 is a schematic diagram showing the interior of the vehicle in FIG. 1 along the line of sight of the driver. [Diagram 3] FIG. 2 is a control block diagram of a hardware configuration of an ECU and an AR lens of a vehicle. [Figure 4] FIG. 2 is a functional block diagram of a hardware configuration of the AR lens. [Diagram 5] 13A is a schematic diagram of the display unit when the occupant faces forward, and FIG. 13B is a schematic diagram of the display unit when the occupant faces to the right. [Figure 6] 11 is a flowchart showing a process executed by the AR lens. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, an embodiment of the superimposed display control device for AR glasses according to the present invention will be described with reference to the accompanying drawings. The superimposed display control device for AR glasses of the embodiment is applied to a vehicle 10 and AR glasses 30. Note that the arrow FR shown as appropriate in each drawing indicates the front side in the vehicle longitudinal direction, the arrow UP indicates the upper side in the vehicle vertical direction, and the arrow LH indicates the left side in the vehicle lateral direction (vehicle width direction).

[0015] As shown in Fig. 1 and Fig. 2, a front windshield 12 is provided on a vehicle body 11 of a vehicle 10. Furthermore, an instrument panel (interior member) 13, an ECU 15, a vehicle speed sensor 23, an acceleration sensor (first detection unit) 24, and a driver's seat 25 are provided on the vehicle body 11. As shown in Fig. 2, the right end portion of the instrument panel 13 constitutes a specific portion 13A. The vehicle speed sensor 23 detects the vehicle speed of the vehicle 10. The acceleration sensor 24 detects acceleration in the vehicle's longitudinal direction and in the vehicle's lateral direction (vehicle width direction) that occurs in the vehicle 10. Hereinafter, the acceleration acquired by the acceleration sensor 24 will be referred to as a first acceleration.

[0016] 3, the ECU 15 includes a CPU (Central Processing Unit: processor) 16, a ROM (Read Only Memory) 17, a RAM (Random Access Memory) 18, a storage 19, a communication I / F (Interface) 20, and an input / output I / F 21. The CPU 16, the ROM 17, the RAM 18, the storage 19, the communication I / F 20, and the input / output I / F 21 are connected to each other so as to be able to communicate with each other via a bus 22. A vehicle speed sensor 23 and an acceleration sensor 24 are connected to the input / output I / F 21. The ECU 15 can obtain information relating to date and time from a timer (not shown).

[0017] The CPU 16 is a central processing unit that executes various programs and controls each part. That is, the CPU 16 reads a program from the ROM 17 or the storage 19, and executes the program using the RAM 18 as a working area. The CPU 16 controls each component and performs various calculation processes (information processing) according to the programs recorded in the ROM 17 or the storage 19.

[0018] The ROM 17 stores various programs and various data. The RAM 18 temporarily stores programs or data as a working area. The storage 19 is configured by a storage device such as a hard disk drive (HDD) or a solid state drive (SSD), and stores various programs and various data. The communication I / F 20 is an interface capable of communicating with devices located outside the vehicle 10. For example, the communication I / F 20 is capable of wireless communication with the AR glasses 30. The communication I / F 20 uses communication standards such as Bluetooth (registered trademark) and Wi-Fi (registered trademark). Furthermore, the communication I / F 20 is capable of communicating with an ECU other than the ECU 15 provided in the vehicle 10 via an external bus.

[0019] The acceleration sensor 24 detects the first acceleration every time the first predetermined time elapses. The vehicle speed sensor 23 also detects the vehicle speed of the vehicle 10 every time the first predetermined time elapses. Furthermore, the communication I / F 20 wirelessly transmits information related to the vehicle speed and the first acceleration to the communication I / F 41 of the AR glasses 30 every time the first predetermined time elapses. This first predetermined time is, for example, 1 / 100 seconds. However, the first predetermined time may be a time length other than 1 / 100 seconds.

[0020] As shown in Fig. 1, an occupant P seated in the driver's seat 25 of a vehicle 10 wears AR glasses 30, which are a wearable device of a head-mounted display type, on his / her head P1. The AR glasses 30 use AR (Augmented Reality) technology to display content such as images and text superimposed on objects and scenery outside the vehicle that the occupant P visually recognizes through the AR glasses 30 (display unit 32). The AR glasses 30 include a main body 31, a display unit 32, a gaze sensor 33, a camera 34, an acceleration sensor (IMU sensor) (second detection unit) 35, a hardware configuration 36, and a battery (not shown).

[0021] The main body 31 is a portion that is attached to the head P1.

[0022] The display unit 32 is provided in the front of the main body 31. That is, when the main body 31 is attached to the head P1, the display unit 32 is located immediately in front of both eyes of the occupant P. The display unit 32 is a transmissive display that displays object images (contents) such as images, characters, and icons that are visible to the occupant P. That is, the occupant P can view objects and the like in front of the AR glasses 30 through the display unit 32.

[0023] The line of sight sensor 33 detects the line of sight of the occupant P wearing the AR glasses 30.

[0024] The camera 34 can capture an image of a subject located in the line of sight direction detected by the line of sight sensor 33 and subjects located around the subject. That is, the camera 34 can capture an image of a subject located within the range of the angle of view.

[0025] The acceleration sensor 35 detects the acceleration in the front-rear and left-right directions of the head P1 wearing the AR glasses 30. When the head P1 faces forward in the front-rear direction of the vehicle, the front-rear direction of the head P1 coincides with the front-rear direction of the vehicle, and the left-right direction of the head P1 coincides with the left-right direction of the vehicle. Hereinafter, the acceleration acquired by the acceleration sensor 35 is referred to as the second acceleration.

[0026] The battery supplies power to the display unit 32, the gaze sensor 33, the camera 34, the acceleration sensor 35 and the hardware configuration 36.

[0027] As shown in FIG. 3, the display unit 32, the gaze sensor 33, the camera 34, and the acceleration sensor 35 are connected to a hardware configuration 36 (input / output I / F 42). The hardware configuration 36 includes a CPU 37, a ROM 38, a RAM 39, a storage 40, a communication I / F 41, and an input / output I / F 42. The CPU 37, the ROM 38, the RAM 39, the storage 40, the communication I / F 41, and the input / output I / F 42 are connected to each other so as to be able to communicate with each other via a bus 43. The functions of the CPU 37, the ROM 38, the RAM 39, the storage 40, the communication I / F 41, and the input / output I / F 42 are the same as those of the CPU 16, the ROM 17, the RAM 18, the storage 19, the communication I / F 20, and the input / output I / F 21, respectively. Furthermore, the storage 40 stores object information that represents information about a subject photographed by the acceleration sensor 35. The object information includes, for example, characters that represent the vehicle speed acquired by the vehicle speed sensor 23 of the vehicle 10.

[0028] 4, the hardware configuration 36 of the AR glasses 30 has, as functional components, a relative acceleration calculation unit (estimation unit) 45, a reference position recognition unit 46, and a display control unit (display position adjustment unit) 47. The relative acceleration calculation unit 45, the reference position recognition unit 46, and the display control unit 47 are realized by the CPU 37 of the hardware configuration 36 reading and executing a program stored in the ROM 38 or the storage 40.

[0029] The relative acceleration calculation unit 45 calculates the acceleration of the head P1 relative to the vehicle 10 (hereinafter referred to as relative acceleration) based on the first acceleration of the vehicle 10 received by the communication I / F 41 from the communication I / F 20 and the second acceleration of the head P1 acquired by the acceleration sensor 35. The acceleration sensor 35 detects the second acceleration every time a first predetermined time elapses. The relative acceleration calculation unit 45 (CPU 37) calculates the relative acceleration every time the first predetermined time elapses. In other words, the relative acceleration calculation unit 45 (CPU 37) calculates the relative acceleration at a predetermined first frequency.

[0030] The reference position recognition unit 46 performs image processing on the photographed data acquired by the camera 34 to determine whether the photographed data includes the specific portion 13A of the instrument panel 13. Furthermore, when the reference position recognition unit 46 determines that the photographed data includes the specific portion 13A, it recognizes the reference position SP, which is the position of the specific portion 13A, based on the image-processed photographed data. Note that the calculation processing load on the CPU 37 when the reference position recognition unit 46 performs image processing is greater than the calculation processing load on the CPU 37 when the relative acceleration calculation unit 45 calculates the relative acceleration. Therefore, the reference position recognition unit 46 (CPU 37) executes image processing and recognition processing of the reference position SP every time a second predetermined time, which is longer than the first predetermined time, elapses. The second predetermined time is, for example, 1.0 second. However, the second predetermined time is longer than the first predetermined time. Long Time The time may be a length other than 1.0 second as long as it is. In other words, the reference position recognition unit 46 (CPU 37) executes the image processing and the recognition process of the reference position SP at a second frequency that is lower than the first frequency.

[0031] The reference position recognition unit 46 determines whether the specific portion 13A is included in the photographed data, taking into consideration not only the shape of the specific portion 13A included in the photographed data, but also the state of the subject located around the specific portion 13A. When the vehicle speed of the vehicle 10 is equal to or higher than a predetermined value, the scenery outside the vehicle recognized by the camera 34 is recognized by the reference position recognition unit 46 as a subject moving at high speed. In this way, when the subject located around the specific portion 13A moves at high speed, if the reference position recognition unit 46 determines whether the specific portion 13A is included in the photographed data while considering the subject moving at high speed in addition to the shape of the specific portion 13A, the accuracy of the determination is likely to decrease. Therefore, when the vehicle speed acquired by the vehicle speed sensor 23 is equal to or higher than the above-mentioned predetermined value, the reference position recognition unit 46 determines whether the specific portion 13A is included in the photographed data, ignoring the subject located around the specific portion 13A and moving at high speed. The value of the predetermined value is recorded in the ROM 17, for example. This predetermined value is, for example, 30 km / h. However, this predetermined value may be a vehicle speed other than 30 km / h.

[0032] When the display control unit 47 receives information regarding the vehicle speed of the vehicle 10 from the vehicle speed sensor 23, it reads out object information representing the vehicle speed from the storage 40, and displays the object image (icon, hologram) OP (see Figures 2 and 5) represented by the object information on the display unit 32.

[0033] At this time, the display unit 32 displays the object image OP in the display area DA shown in Figures 2 and 5. In this case, the occupant P recognizes that the object image OP is displayed superimposed on the front windshield 12. Note that the occupant P wearing the AR glasses 30 cannot actually view the display area DA shown in Figures 2 and 5. That is, for the sake of convenience, the display area DA is depicted in Figures 2 and 5.

[0034] The position of the display area DA is set by the display control unit 47. Based on information on the relative acceleration calculated by the relative acceleration calculation unit 45 and information on the reference position SP recognized by the reference position recognition unit 46, the display control unit 47 adjusts the position of the display area DA in the display unit 32 so that the relative position of the display area DA with respect to the reference position SP becomes a predetermined specific position. Hereinafter, the display position of the display area DA when the relative position with respect to the reference position SP becomes a specific position is referred to as the "set display position DP". The display position of the display area DA shown in FIG. 2 is the set display position DP. As described later, the display control unit 47 performs a primary adjustment and a secondary adjustment so that the difference between the display position of the display area DA and the set display position DP becomes small.

[0035] Among the components described above, the ECU 15, the vehicle speed sensor 23, the acceleration sensor 24, and the AR glasses 30 are components of the overlay display control device for AR glasses of this embodiment.

[0036] (Action and Effects) Next, the operation and effects of the embodiment will be described.

[0037] Hereinafter, the flow of processing performed by the CPU 37 (hardware configuration 36) of the AR glasses 30 will be described with reference to the flowchart of Fig. 6. The CPU 37 repeatedly executes the processing of the flowchart of Fig. 6 every time the first predetermined time elapses.

[0038] First, in step S10, the CPU 37 determines whether or not information relating to the vehicle speed has been acquired from the vehicle 10.

[0039] If the CPU 37 determines "Yes" in step S10, the process proceeds to step S11, where the display control unit 47 controls the display unit 32. As a result, the display control unit 47 reads the object information representing the acquired vehicle speed from the storage 40, and causes the display unit 32 to display an object image OP. For example, if the vehicle speed at this time is 60 km / h (60 km per hour), an object image OP representing that the speed is 60 km / h is displayed in the display area DA of the display unit 32, as shown in Fig. 2 and Fig. 5. It should be noted that the relative position of the display area DA at this time is at the set display position DP.

[0040] After completing the process of step S11, the CPU 37 proceeds to step S12 and determines whether or not at least one of the first acceleration and the second acceleration has been acquired.

[0041] If the CPU 37 determines "Yes" in step S12, the process proceeds to step S13, where the relative acceleration calculation unit 45 calculates the relative acceleration. If only the first acceleration is acquired, the first acceleration becomes the relative acceleration. If only the second acceleration is acquired, the second acceleration becomes the relative acceleration.

[0042] After completing the process of step S13, the CPU 37 proceeds to step S14 and determines whether or not the absolute value of the relative acceleration is greater than a predetermined threshold value. This threshold value is, for example, "0 (km / h)" or "a value that is extremely small and greater than 0."

[0043] If the CPU 37 determines "Yes" in step S14, the process proceeds to step S15, where the display control unit 47 adjusts the position of the display area DA in the display unit 32 based on the relative acceleration. Hereinafter, the adjustment of the position of the display area DA based on the relative acceleration is referred to as a "primary adjustment." This primary adjustment moves the position of the display area DA in the display unit 32 to the side opposite to the direction of the relative acceleration.

[0044] Here, it is assumed that the head P1 faces forward. At this time, as shown in FIG. 5(A), the occupant P can view the specific part 13A through the display unit 32, and the display area DA is set in the center of the display unit 32. When the head P1 of the occupant P faces rightward from this state, the occupant P can view the specific part 13A through the left part of the display unit 32, as shown in FIG. 5(B). The display area DA shown by the virtual line in FIG. 5(B) is the display area DA corresponding to the display area DA shown in FIG. 5(A). Furthermore, the display position of the display area DA shown by the solid line in FIG. 5(B) is the set display position DP when the head P1 faces rightward. When the head P1 faces rightward, the relative acceleration calculation unit 45 detects the rightward relative acceleration G1. Therefore, the display control unit 47 moves the display area DA shown by the virtual line in Fig. 5(B) to the position of the display area DA drawn by the dashed line along the adjustment direction M1, which is the opposite direction to the relative acceleration G1. By performing the primary adjustment of the display position of the display area DA in this manner, the display position of the display area DA shown by the dashed line becomes closer to the display position of the display area DA shown by the solid line (set display position DP) than the display position of the display area DA shown by the virtual line.

[0045] After completing the process of step S15, the CPU 37 proceeds to step S16, where the reference position recognition unit 46 determines whether or not the specific portion 13A of the instrument panel 13 is included in the photographed data.

[0046] For example, in the current processing of the flowchart in Fig. 6, if the reference position recognition unit 46 does not execute image processing of the photographed data acquired by the camera 34, the CPU 37 judges No in step S16. In this case, the CPU 37 temporarily ends the processing of the flowchart in Fig. 6. In addition, when the CPU 37 judges No in step S10 or step S12, the CPU 37 temporarily ends the processing of the flowchart in Fig. 6.

[0047] For example, it is assumed that the CPU 37 executes the process of the flowchart in FIG. 6 a number of times, determines No in the process of step S16 each time, and then immediately executes the process of the flowchart in FIG. 6 again.

[0048] When the CPU 37 performs the process of step S11, it is assumed that the display position of the display area DA is at the position indicated by the dashed line in FIG. 5(B).

[0049] It is assumed that the CPU 37 subsequently determines "Yes" in step S16, in which case the CPU 37 proceeds to step S17.

[0050] In step S17, the display control unit 47 adjusts the display position of the display area DA based on the reference position SP recognized by the reference position recognition unit 46. That is, the display control unit 47 moves the display area DA from the display position depicted by the dashed line to the set display position DP depicted by the solid line along the adjustment direction M2 shown in FIG. 5(B) so that the display position of the display area DA becomes the set display position DP. Hereinafter, such position adjustment of the display area DA based on the reference position SP is referred to as a secondary adjustment. By performing the secondary adjustment of the display position of the display area DA in this manner, the display position of the display area DA becomes the set display position DP.

[0051] After completing the process of step S17, the CPU 37 temporarily ends the process of the flowchart in FIG.

[0052] As described above, in the superimposed display control device for AR glasses according to the embodiment, the display position of the display area DA in the display unit 32 is primarily adjusted based on the relative acceleration of the AR glasses 30. The relative acceleration of the AR glasses 30 is the acceleration of the AR glasses 30 relative to the vehicle 10. Therefore, the display position of the primarily adjusted object image OP (display area DA) is more likely to approach the set display position DP than the display position of the display area DA before the primary adjustment.

[0053] Furthermore, in the superimposed display control device of the AR glasses of the embodiment, the display position of the display area DA is secondarily adjusted based on the display position of the display area DA and the set display position DP. As a result, the display position of the display area DA (object image OP) becomes the set display position DP.

[0054] Furthermore, in general, the computational load on the CPU 37 when the CPU 37 calculates the relative acceleration of the AR glasses 30 based on the first acceleration and the second acceleration is small. Therefore, the computational load on the CPU 37 caused by the CPU 37 repeatedly calculating the relative acceleration every time the first predetermined time elapses is small. Furthermore, the second frequency, which is the execution frequency of the image processing of the captured data (recognition processing of the reference position SP) by the CPU 37, is lower than the first frequency, which is the execution frequency of the calculation processing of the relative acceleration. Therefore, the computational load on the CPU 37 caused by the image processing of the captured data is small. In this way, since the execution frequency of the image processing is lower than the calculation frequency of the relative acceleration, the computational load on the CPU 37 is small.

[0055] The above describes the overlay display control device for AR glasses according to the embodiment, but the design of the overlay display control device for AR glasses can be modified as appropriate without departing from the spirit and scope of the present invention.

[0056] For example, the object image OP may be an object image that represents information other than the vehicle speed of the vehicle 10.

[0057] A portion that constitutes a part of the interior member of the vehicle 10 and is different from a part of the instrument panel 13 may be used as the specific portion. [Explanation of symbols]

[0058] 10 Vehicles 13. Instrument panel (interior parts) 13A Specific part 24 Acceleration sensor (first detection unit) 30 AR Glasses 32 Display unit 34 Camera 35 Acceleration sensor (second detection unit) 45 Relative acceleration calculation unit (estimation unit) 46 Reference position recognition unit 47 Display control unit (display position adjustment unit) OP Object Image P Crew P1 head SP reference position

Claims

[Claim 1] A first detection unit provided in a vehicle and configured to detect a behavior of the vehicle; A second detection unit provided in the AR glasses mounted on the head of an occupant of the vehicle and configured to detect a behavior of the AR glasses; an estimation unit that is provided in the AR glasses and that estimates a relative behavior of the AR glasses with respect to the vehicle at a predetermined first frequency based on a difference between a detection value of the first detection unit and a detection value of the second detection unit; a reference position recognition unit that recognizes, when a camera provided in the AR glasses captures an image of a specific portion that constitutes a part of an interior member of the vehicle and is located forward of the AR glasses, a reference position that is a position of the specific portion at a second frequency that is lower than the first frequency based on the captured image data; a display unit provided in the AR glasses, the display unit displaying the object image so that a difference between a set display position located at a predetermined relative position with respect to the reference position and a display position of an object image representing predetermined information becomes small; a display position adjustment unit provided in the AR glasses, which adjusts the display position primarily based on the behavior of the AR glasses estimated by the estimation unit so that a difference between the display position on the display unit and the set display position becomes small, and which adjusts the display position secondarily based on the reference position recognized by the reference position recognition unit so that the display position coincides with the set display position; An AR glasses overlay display control device comprising:

Images