WO2019074228A2 - Visiocasque pour réduire le mal des transports en réalité virtuelle et son procédé de fonctionnement - Google Patents

Visiocasque pour réduire le mal des transports en réalité virtuelle et son procédé de fonctionnement Download PDF

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Publication number
WO2019074228A2
WO2019074228A2 PCT/KR2018/011650 KR2018011650W WO2019074228A2 WO 2019074228 A2 WO2019074228 A2 WO 2019074228A2 KR 2018011650 W KR2018011650 W KR 2018011650W WO 2019074228 A2 WO2019074228 A2 WO 2019074228A2
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WIPO (PCT)
Prior art keywords
viewing angle
head
image
mounted display
output
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Ceased
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PCT/KR2018/011650
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English (en)
Korean (ko)
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WO2019074228A3 (fr
Inventor
김광욱
김창섭
김민규
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Industry University Cooperation Foundation IUCF HYU
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Industry University Cooperation Foundation IUCF HYU
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Publication of WO2019074228A2 publication Critical patent/WO2019074228A2/fr
Publication of WO2019074228A3 publication Critical patent/WO2019074228A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0093—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G02B2027/0187—Display position adjusting means not related to the information to be displayed slaved to motion of at least a part of the body of the user, e.g. head, eye

Definitions

  • the present invention relates to a head-mounted display and a method of operating the same, and more particularly, to a head-mounted display for adjusting a viewing angle of a head-mounted display and a method of operating the same.
  • the head-mounted display refers to a display device worn on the user's head.
  • the head-mounted display is mainly used as a display device for the implementation of virtual reality or augmented reality, and is also combined with 3D display technology.
  • the head-mounted display is characterized by providing the user with a degree of immersion that is incomparable to other displays, and has the advantage that there is little space limitation compared to the size of the display displayed to the user.
  • the head-mounted display also has the advantage of being able to recognize user movements such as head tracking and adjust the displayed image according to recognition, thereby providing a highly intuitive input method.
  • the virtual nausea that occurs when experiencing virtual reality through the head-mounted display is a major obstacle to the diffusion and utilization of the head-mounted display.
  • An object of the present invention is to adjust the viewing angle of an image displayed according to a movement of a user, thereby reducing a user's motion sickness caused by the use of the head-mounted display.
  • the technical object of the head-mounted display according to the technical idea of the present invention and the method of operation thereof is not limited to the above-mentioned problem (s), and another problem (s) not mentioned is clear from the following description It can be understood.
  • a method of operating a head-mounted display block comprising: tracking movement of at least one of a user's eyes and a head; Calculating a viewing angle of an image to be output based on the tracked motion; And outputting the image at the calculated viewing angle.
  • the step of outputting the image may include outputting an image to which the calculated viewing angle is applied, based on the center of the display on which the image is output.
  • the step of outputting the image may include outputting an image using the calculated viewing angle based on the center of the user's line of sight.
  • the step of calculating the viewing angle may include calculating a viewing angle of the image to be output within a maximum viewing angle and a minimum viewing angle of the user.
  • the step of calculating the viewing angle may include calculating the viewing angle so that the viewing angle changes with a first variation amount in accordance with the tracked movement, within a first viewing angle range at the maximum viewing angle have.
  • the step of calculating the viewing angle includes a step of, in a second viewing angle range narrower than the first viewing angle at the first viewing angle, And calculating the viewing angle so as to vary with a variation amount.
  • the step of calculating the viewing angle includes a step of changing the viewing angle to a third changing amount smaller than the second changing amount in accordance with the tracked movement within the minimum viewing angle range at the second viewing angle, And the step of calculating
  • a head-mounted display includes a display; A tracking module for tracking movement of at least one of the user's eyes and head; And a controller for calculating a viewing angle of an image to be output to the display based on the tracked motion and outputting the image to the display at the calculated viewing angle.
  • the controller can output an image to which the calculated viewing angle is applied, based on the center of the display.
  • the controller can output an image to which the calculated viewing angle is applied, based on the center of the user's gaze.
  • the controller can calculate a viewing angle of the image to be output within a maximum viewing angle and a minimum viewing angle of the user.
  • the controller can calculate the viewing angle so that the viewing angle changes to a first variation amount in accordance with the tracked movement within the first viewing angle range at the maximum viewing angle.
  • the controller changes the viewing angle to a second variation amount smaller than the first variation amount in accordance with the tracked movement within a second viewing angle range narrower than the first viewing angle at the first viewing angle
  • the viewing angle can be calculated.
  • the controller can calculate the viewing angle so that the viewing angle changes to a third variation amount smaller than the second variation amount in accordance with the tracked movement within the minimum viewing angle range at the second viewing angle .
  • an electronic device comprising at least one processor; And a memory electrically coupled to the processor, wherein the memory tracks movement of at least one of a user's eye and head at the time of execution of the processor, and based on the tracked motion, And store the instructions to output the image at the calculated viewing angle.
  • the head-mounted display and the method of operation thereof according to embodiments of the present invention can reduce the virtual motion sickness due to the use of the head-mounted display.
  • the present invention it is possible to reduce the user's motion sickness due to the use of the head-mounted display by adjusting the viewing angle of the displayed image according to the user's motion.
  • FIG. 1 is a conceptual diagram of the operation of a head-mounted display in accordance with various embodiments of the present invention.
  • FIG. 2 is a block diagram illustrating a configuration of a head-mounted display according to various embodiments of the present invention.
  • FIG. 3 is a flow chart of a method of operating a head-mounted display in accordance with various embodiments of the present invention.
  • FIG. 4 is an exemplary view of viewing angle adjustment according to various embodiments of the present invention.
  • FIG 5 is an exemplary view of a view angle adjusted image according to various embodiments of the present invention.
  • FIG. 6 is a flow chart of a method of operating a head-mounted display in accordance with various embodiments of the present invention.
  • to means units for processing at least one function or operation,
  • An application processor a microcontroller, a central processing unit (CPU), a graphics processing unit (GPU), an accelerated processor unit (APU), a digital signal processor (DSP) Application Specific Integrated Circuit), FPGA (Field Programmable Gate Array), or the like, or a combination of hardware and software.
  • CPU central processing unit
  • GPU graphics processing unit
  • APU accelerated processor unit
  • DSP digital signal processor
  • FPGA Field Programmable Gate Array
  • each of constituent parts in this specification is merely a division by each main function of each constituent part. That is, two or more constituent parts to be described below may be combined into one constituent part, or one constituent part may be divided into two or more functions according to functions that are more subdivided.
  • each of the constituent units described below may additionally perform some or all of the functions of other constituent units in addition to the main functions of the constituent units themselves, and that some of the main functions, And may be carried out in a dedicated manner.
  • FIG. 1 is a conceptual diagram of the operation of a head-mounted display in accordance with various embodiments of the present invention.
  • a head-mounted display 100 can output an image 200, and an output image 200 can be provided to a user wearing the head-mounted display 100.
  • the head-mounted display 100 is capable of adjusting the field of view of the output image 200.
  • the head-mounted display 100 may provide a restrictor 250 for adjusting the viewing angle of the output image 200 to adjust the viewing angle of the displayed image 200.
  • the viewing angle may be expressed as an angle of view.
  • the head-mounted display 100 may output the image 200 whose viewing angle is adjusted by applying the restrictor 250 to the output image 200.
  • the head-mounted display 100 outputs the listener 250 on the output image 200 to output the image 200 having the adjusted viewing angle.
  • the head-mounted display 100 may include a restrictor 250 in a physical configuration to adjust the viewing angle of the output image 200.
  • the head mounted display 100 may output the center of the restrictor 250 to be positioned at the center of the image 200 and output the center of the restrictor 250 to be positioned at the center of the user's line of sight.
  • the head-mounted display 100 can track the movement of a user wearing the head-mounted display 100, e.g., head and / or eye movement, and adjust the viewing angle based on the tracked movement. As described above, the head-mounted display 100 can reduce the sense of motion feeling by adjusting the viewing angle according to the movement of the user.
  • FIG. 2 is a block diagram illustrating a configuration of a head-mounted display according to various embodiments of the present invention.
  • the head-mounted display 100 may include a display 110, a memory 130, a controller 150, and a tracking module 170.
  • the display 110 may output an image processed in the head-mounted display 100 or an image transmitted to the head-mounted display 100.
  • the display 110 may output a virtual reality (VR), an augmented reality (AR), a 3D image, and the like.
  • VR virtual reality
  • AR augmented reality
  • 3D image 3D image
  • the display 110 may output an image whose viewing angle of the output image is adjusted.
  • the memory 130 may store data to support various functions of the head-mounted display 100.
  • the memory 130 may store various application programs, data for operation, and commands that are driven in the head-mounted display 100.
  • the controller 150 can control the overall operation of the head-mounted display 100.
  • the controller 150 may control the head-mounted display 100 to output an image, and the tracking module 170 may control the tracking of the user's movement. Also, the controller 150 can calculate the viewing angle of the image to be output based on the tracked user movement, and output the image to which the calculated viewing angle is applied, to the display 110.
  • the controller 150 may include at least one processor. And the operation of the controller 150 may be performed by executing executables stored in the memory by the processor.
  • the tracking module 170 can sense the movement of the user wearing the head-mounted display 100.
  • the tracking module 170 may include an eye tracking module 172, a head tracking module 174,
  • the eye tracking module 172 can track the movement of the user's eyes wearing the head-mounted display 100. Accordingly, the eye tracking module 172 can track the eye movement as well as the eye movement of the user.
  • the head tracking module 174 may track the head movement of the wearer wearing the head-mounted display 100.
  • the head tracking module 174 may sense pitch, yaw, and roll, respectively, with respect to the center of the head of the wearer wearing the head-mounted display 100.
  • the tracking module 170 may include various sensors for tracking the movement of the user described above.
  • the tracking module 170 may include a proximity sensor, an illumination sensor, a touch sensor, an acceleration sensor, a magnetic sensor, a gravity sensor G- sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor, an ultrasonic sensor, an optical sensor (for example, a camera) , And a microphone.
  • the head-mounted display 100 may include various configurations other than the above-described configuration.
  • the head-mounted display 100 may include a communication module for wired / wireless communication, an input / output port for inputting / outputting data, an input module for receiving user input, and the like.
  • FIG. 3 is a flow chart of a method of operating a head-mounted display in accordance with various embodiments of the present invention.
  • the head-mounted display 100 can track the movement of at least one of the user's eyes and head wearing the head-mounted display 100 (S110).
  • the tracking module 170 of the head-mounted display 100 may sense motion of at least one of the user's eyes and head wearing the head-mounted display 100.
  • the eye tracking module 172 may track movement of a user's eye, eye movement.
  • the head tracking module 174 may track the head movement of the user.
  • each of the eye tracking module 172 and the head tracking module 174 may track a user's eye movement, gaze movement, and head movement, respectively.
  • the head-mounted display 100 can not only track the movement of the user based on the movement of at least one of the eyes and head of the sensed user, but also determine the position that the user looks at in the output image .
  • the head-mounted display 100 can calculate the viewing angle of the image to be output based on the tracked motion (S130).
  • the controller 150 of the head-mounted display 100 may calculate a field of view of an image to be output to the display 110, based on the user's movement tracked by the tracking module 170.
  • the controller 150 may calculate the viewing angle of the image to be output so as to adjust the viewing angle in proportion to the tracked motion. Specifically, the controller 150 can calculate the viewing angle of the image to be outputted so as to adjust the viewing angle of the image to be outputted in proportion to the movement of at least one of the eyes and head of the tracked user.
  • FIG. 4 is an exemplary view of viewing angle adjustment according to various embodiments of the present invention.
  • the controller 150 may calculate the viewing angle FoV to be narrower as the number of tracked movements increases, and the viewing angle FoV may be calculated to be wider as the tracked movements decrease. Therefore, the head-mounted display 100 can output an image having a narrow viewing angle when there is a large user movement, and an image having a wide viewing angle if the user's movement is small.
  • the controller 150 can calculate the viewing angle of the image to be output according to the viewing angle of the image being output to the display 110.
  • the controller 150 can calculate the viewing angle of the image to be output within the range of the maximum viewing angle and the minimum viewing angle.
  • the controller 150 can calculate the viewing angle of the image to be output only between a maximum viewing angle of 96 degrees and a minimum viewing angle of 29 degrees. Accordingly, the controller 150 can calculate the viewing angle of the image to be output within a maximum viewing angle and a minimum viewing angle based on the tracked motion.
  • the controller 150 may adjust a change amount of the viewing angle of the image to be outputted according to the movement according to the viewing angle of the image being output to the display 110.
  • the controller 150 displays the image to be output in accordance with the movement in a range from the maximum viewing angle of the user wearing the head-mounted display 100 to the viewing angle corresponding to the peripheral vision, for example, It is possible to calculate the viewing angle so that the viewing angle of the light source changes to the first variation amount.
  • the controller 150 can calculate the viewing angle such that the viewing angle of the image to be output changes with the second variation amount in accordance with the movement in the range from the first viewing angle to the second viewing angle.
  • the second viewing angle may be narrower than the first viewing angle, may be a wider viewing angle than the minimum viewing angle, and the second variation may be less than the first variation.
  • the controller 150 can calculate the viewing angle so that the viewing angle of the image to be output changes with the third viewing angle in the range from the second viewing angle to the minimum viewing angle.
  • the third change amount may be a change amount smaller than the second change amount.
  • the controller 150 may calculate the viewing angle so as to adjust (magnify / reduce) the viewing angle at a magnification of 1 at a maximum viewing angle of 96 degrees and a viewing angle of 48 degrees.
  • the controller 150 can calculate the viewing angle so as to adjust (magnify / reduce) the viewing angle at a magnification of 0.5 in a section between the viewing angle of 48 degrees and the viewing angle of 29 degrees.
  • the controller 150 can calculate such that the viewing angle does not change in a section where the viewing angle is greater than 96 or less than 29 degrees.
  • the head-mounted display 100 can calculate the viewing angle of the image to be output according to the tracked movement, and can adjust the magnification and the variation of the viewing angle calculated according to the interval of the output image. Therefore, the head-mounted display 100 allows the viewing angle to be changed slowly in a section where the user's viewing angle is good, and the viewing angle can be changed rapidly in a section in which the user's viewing angle is not good. Accordingly, it is possible to minimize the sense of heterogeneity felt by the user of the head-mounted display 100, to minimize motion sickness, and to maintain an optimum viewing angle.
  • the viewing angle calculated by the controller 150 can be expressed by the following equation.
  • FoV FoV '+ delta (Time) / Ctime-Crate
  • FoV is the calculated viewing angle
  • FoV ' is the previous viewing angle (viewing angle being output)
  • Ctime is a constant
  • Crate is the viewing angle variation.
  • Crate can be expressed as:
  • angularVelocity is related to the speed at which the head turns
  • overallSpeed is the speed associated with the speed
  • the amount of change and magnification according to the viewing angle section can be expressed as follows.
  • Anglemax is the maximum viewing angle
  • Anglemin is the minimum viewing angle
  • Anglemax, Anglemid, and Anglemin can be defined as follows.
  • magnification, the amount of change, and the viewing angle interval applied to the Crate according to the section are arbitrary numerical values and can be changed according to the use environment, designer's selection, setting, and the like.
  • the head-mounted display 100 can output an image at a calculated viewing angle (S150).
  • the controller 150 may output an image to the display 110 at a calculated viewing angle.
  • the head mounted display 100 can output an image using the calculated viewing angle based on the center of the display 110 or the center of the line of sight of the user.
  • the controller 150 may output an image with the calculated viewing angle applied to the display 110, based on the center of the display 110.
  • the controller 150 may output, to the display 110, an image based on the user's gaze, based on the tracked user's gaze, to which the calculated viewing angle is applied.
  • FIG 5 is an exemplary view of a view angle adjusted image according to various embodiments of the present invention.
  • the controller 150 may output an image whose viewing angle is adjusted based on the center of the display 110.
  • the controller 150 may output a video having a viewing angle adjusted based on the center of the user's gaze and the upper right corner.
  • the controller 150 may output an image having a viewing angle adjusted based on the center of the user's gaze and the lower left corner.
  • the head-mounted display 100 can output an image whose viewing angle is adjusted around the screen center of the display 110 or the user's line of sight.
  • the head mounted display 100 can output an image to which an adjusted viewing angle is applied to an image to be output to the display 110 and generate a listener layer according to an adjusted viewing angle different from the image to be output, It can also be output on the image.
  • the head-mounted display 100 may also include a physical iris configuration to control the physical configuration to adjust the viewing angle of the display 110.
  • the head-mounted display 100 may adjust the width of the gray region of the image according to the viewing angle adjustment according to the adjusted viewing angle.
  • the gray area may mean a gray area between an area displayed in black and an area displayed in accordance with the viewing angle adjustment.
  • the head-mounted display 100 may display and adjust the transparency of the gray region according to the viewing angle.
  • the head-mounted display 100 can further adjust the viewing angle of an image to be outputted by considering information related to an output image. This will be described with reference to FIG.
  • FIG. 6 is a flow chart of a method of operating a head-mounted display in accordance with various embodiments of the present invention.
  • the head-mounted display 100 can track the movement of at least one of the user's eyes and head wearing the head-mounted display 100 (S210).
  • the motion tracking of the head-mounted display 100 has been described in detail above, and a detailed description thereof will be omitted.
  • the head-mounted display 100 can determine image information on an image to be output (S220).
  • the image information may include information for processing the image and information about the image quality.
  • the controller 150 of the head-mounted display 100 can determine information related to image processing of the image to be outputted, information on the image to be outputted, and the like. For example, the controller 150 of the head-mounted display 100 can determine information related to the processing capability for processing an image to be output and determine quality information of the output image itself.
  • the head-mounted display 100 may calculate a viewing angle of the image to be output based on the tracked motion and the determined image information (S230).
  • the controller 150 can calculate the viewing angle of an image to be output based on the tracked motion and the determined image information.
  • the controller 150 can calculate the viewing angle of the image to be output, taking into account not only the tracked motion, but also the determined image information, as described above. Accordingly, the controller 150 can calculate the viewing angle of the image to be outputted in consideration of the resources of the head-mounted display 100 for processing the image to be outputted.
  • the controller 150 may further include elements related to the image information in the above-described viewing angle calculation formula.
  • the head-mounted display 100 can output an image at a calculated viewing angle (S150).
  • the head-mounted display and the operation method thereof can adjust the viewing angle of the output image and the image output according to the movement of the user, thereby reducing the motion sickness felt by the user.
  • This allows users with a head-mounted display to have a better user experience.
  • it is possible to provide a better experience environment to a user using a head-mounted display that outputs a virtual reality, thereby providing more opportunities for virtual reality experience to users who are vulnerable to virtual motion sickness. Therefore, it is expected that the present invention can contribute to the increase of virtual reality users and industry development related to virtual reality.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

Un procédé de fonctionnement d'un bloc d'affichage monté sur la tête selon un aspect de l'idée technique de la présente invention peut comprendre les étapes consistant à: suivre le mouvement d'au moins l'un des yeux et de la tête de l'utilisateur; calculer un angle de visualisation d'une image à délivrer, sur la base du mouvement suivi; et délivrer l'image au niveau de l'angle de visualisation calculé.
PCT/KR2018/011650 2017-10-11 2018-10-01 Visiocasque pour réduire le mal des transports en réalité virtuelle et son procédé de fonctionnement Ceased WO2019074228A2 (fr)

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KR1020170130795A KR101951406B1 (ko) 2017-10-11 2017-10-11 가상 멀미 저감을 위한 헤드 마운티드 디스플레이 및 그 동작 방법
KR10-2017-0130795 2017-10-11

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WO2022212157A1 (fr) 2021-03-29 2022-10-06 Tencent America LLC Techniques pour réduire la cybercinétose lors de partage de fenêtre d'affichage dans une téléconférence et téléprésence pour terminaux distants
CN115552358A (zh) * 2021-03-29 2022-12-30 腾讯美国有限责任公司 用于在用于远程终端的电话会议和远程呈现中进行视口共享时减轻晕动症的技术
US12044845B2 (en) 2021-03-29 2024-07-23 Tencent America LLC Towards subsiding motion sickness for viewport sharing for teleconferencing and telepresence for remote terminals

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