Abstract: A method of providing content using a head-mounted device. The method includes receiving, by a terminal configured to display a screen for logging in to the application, input of user identification information by a user, wherein the user identification information associates the user with a first application. The method further includes receiving, by the terminal, when authentication using the user identification information is successful, a login key for logging in to a content providing service by the first application. The method further includes transmitting, by the terminal, based on input of a login instruction using the login key by the user wearing the head-mounted device, the login key to a server. The method further includes receiving, by the terminal, from the server, content viewable in a head-mounted display mode following successful authentication using the login key.

Abstract: A display control method for execution by a system including a head-mounted device. The display control method includes generating virtual space data for defining a three-dimensional virtual space. The display control method further includes displaying a visual-field image on the head-mounted device based on a visual field of the virtual space data. The display control method further includes updating the visual-field image in response to a detected movement of the head-mounted device exceeding a threshold. Updating the visual-field image includes changing a scale of an object in the virtual space by adjusting an angular range of the visual-field image.

Abstract: A method includes defining a virtual space. The virtual space comprises a first avatar object, a first character object, a second avatar object, and a second character object. The method includes defining a plurality of operation modes for operating the virtual space. The method includes moving, in accordance with an operation of the virtual space by the first user being executed in the first mode, the first character object in accordance with the input to the first controller. The method includes moving, in accordance with an operation of the virtual space by the first user being executed in the second mode, the first avatar object based on the input to the first controller. The method includes generating a visual-field image in accordance with a motion of a head-mounted device (HMD) associated with the first user. The method includes displaying the visual-field image on the HMD.

Abstract: A method of providing a virtual space. The method includes defining a virtual space by a processor. The method further includes displaying a field of view of the virtual space on a head mounted display device. The method further includes detecting, by the processor, a motion of the user wearing the head mounted display device. The method further includes determining, by the processor, a flying direction for an object in the virtual space in response to the detected motion. The method further includes flying, by the processor, the object within the virtual space in accordance with the flying direction. The method further includes moving, by the processor, the field of view in the flying direction.

Abstract: A method including defining a virtual space for immersing a user. The method further includes defining a field of view of a head mounted display. The method further includes generating an image of the field of view based on the virtual space that is visually recognizable by the user. The method further includes updating the image of the field of view in synchronization with movement of the head mounted display. The method further includes generating the image of the field of view including a guiding region which covers a part of the virtual space for guiding a sight line of the user when the image of the field of view is updated without synchronization with the movement of the head mounted display. The method further includes displaying the image of the field of view on the head mounted display.

Abstract: A video content distribution system including a user terminal and a content management server connected via a communication network. The content management server continues transmitting field-of-view video data associated with a first viewpoint to the user terminal at least for a time period from the time when a transmission unit transmits a viewpoint switch request signal for requesting a switch from the first viewpoint to a second viewpoint to the time when a reception unit receives field-of-view video data associated with the second viewpoint. In response to the reception unit receiving the viewpoint switch request signal, a viewing stop time determining unit determines a first viewing stop time at which viewing display stops displaying the field-of-view video from the first viewpoint, and a viewing start time determining unit determines a second viewing start time at which the display start displaying the field-of-view video from the second viewpoint.

Abstract: A method includes defining a virtual space containing an avatar object and the avatar object includes a virtual head and a virtual body. The method includes receiving first information, wherein the first information contains information indicating a relationship between a first direction indicating a direction in which a real body is facing and a second direction indicating a direction in which a real head is facing. The method includes determining in which of a first mode or a second mode the avatar object is to be controlled. The method includes controlling the avatar object without synchronizing movement of the virtual head and movement of the virtual body in response the first mode being set. The method includes controlling the avatar object so that the movement of the virtual head and the movement of the virtual body are synchronized with each other in response the second mode being set.

Abstract: A video content distribution system including a user terminal on which contents are viewable and a content management server. The user terminal includes a first reception unit configured to receive field-of-view video data. The user terminal includes a display control unit configured to display a field-of-view video. The user terminal includes a viewpoint switch request signal generating unit for requesting a switch from a first viewpoint to a second viewpoint in the field-of-view video. The user terminal includes a first transmission unit configured to transmit the viewpoint switch request signal to the content management server. The content management server includes a second reception unit configured to receive the viewpoint switch request signal. The content management server includes a second transmission unit configured to transmit the field-of-view video data. The content management server further includes a switch count updating unit configured to update a count of switches to the second viewpoint.

Abstract: A head-mounted display system includes an inclination detector for detecting an inclination of a head-mounted display. The head-mounted display system further includes a display controller for generating an application image in accordance with the detected inclination for display on the head-mounted display. The display controller is configured to superimpose a menu image on the application image for display on the head-mounted display in response to a determination that the detected inclination exceeding a first threshold value.

Abstract: A method includes defining a virtual space including includes a first avatar object associated with a first user. The first avatar object includes a first part and a second part. The method includes moving the first avatar object in response to a first input from the first user. The first input includes a first motion information for identifying a motion of a part of a body of the first user, and the first part of the first avatar object is moved in accordance with the first motion information. The method includes acquiring supplementary information, independent of a detected movement of the first user, for defining a motion of the second part. The method includes moving the second part based on the supplementary information. The method includes identifying a visual field in the virtual space of a second user different from the first user. The method includes generating a visual-field image.

Abstract: A method includes defining a virtual space including a 360-degree moving image. The method includes playing back the 360-degree moving image. The method includes detecting a motion of a head-mounted device (HMD). The method includes defining a visual field in the 360-degree moving image based on the detected motion. The method includes detecting an emotion of a first user. The method includes comparing the detected emotion with a first condition. The method includes identifying a playback time of the 360-degree moving image at a timing of satisfaction of the first condition. The method includes identifying a direction indicated by the first user at the timing of satisfaction of the first condition. The method includes identifying a first region including a part of the 360-degree moving image corresponding to the identified direction. The method includes changing an evaluation value of the first region in response to satisfaction of the first condition.

Abstract: A method of providing a 360 degree virtual space to a head mounted display (HMD). The method includes defining the 360 degree virtual space including sections. The method further includes generating synthetic content by synthesizing a main content and sub-content, the main content to be played in the 360 degree virtual space as a 360 degree movie in accordance with a predetermined timeline, and the sub-content to be displayed in a part of a display region of the main content at a temporal position defined by the timeline, the display region is specified by one or more sections of the 360 degree virtual space. The method further includes adapting the synthetic content to the 360 degree virtual space. The method further includes determining a line of sight of a user. The method further includes specifying a field-of-view region based on the line of sight.

Abstract: A method includes defining a virtual space including a virtual point of view associated with a first user and, a first and second object. The method includes defining a field of view based on a position of the virtual point of view and a detected motion of the user. The method includes generating a field-of-view image corresponding to the field of view. The method includes displaying the first object in a first mode; and displaying the second object in a second mode. The method includes detecting a position of gaze of the first user. The method includes detecting contact between the position of gaze and the first object. The method includes displaying the first or second object in a third mode in response to detection of the contact. The method includes moving the position of the virtual point of view to the first object in response to detection of the contact.

Abstract: A method includes generating virtual space data defining a virtual space including a self-avatar, a first object capable of exerting a predetermined effect on the self-avatar, and a second object. The method includes identifying a visual field based on a detected movement of a head-mounted display. The method includes generating a visual-field image for display on the head-mount display. The method includes identifying a relative positional relationship between the first object and the self-avatar in response to a determination that the self-avatar is likely to receive the predetermined effect from the first object. The method includes setting a position of the second object based on the identified relative positional relationship. The method includes outputting predetermined sound data based on the set position of the second object. The method includes outputting a sound corresponding to the predetermined sound data from a sound outputting unit.

Abstract: A communication load is reduced in a virtual-reality-space sharing system. An image generation device for generating a virtual reality space image includes a memory for storing an instruction and a processor coupled to the memory for executing the instruction. The instruction, when executed by the processor, causes the processor to acquire, from a second terminal sharing a virtual reality space with a first terminal used by a first user, line-of-sight information including a position and a line-of-sight direction of a second user using the second terminal in the virtual reality space, generate a virtual reality space image to be displayed on the first terminal based on the line-of-sight information acquired from the second terminal, and supply the generated virtual reality space image to the first terminal.

Abstract: A visual-field information collection method is capable of collecting visual-field information of a user wearing a head mounted display without applying a large calculation load to a processor. The visual-field information collection method to be executed by a processor includes arranging, in a virtual space in which a user wearing an HMD is immersed, a virtual camera that defines a visual axis for specifying a visual field of the user. The method includes determining the visual axis in accordance with one of a movement of the HMD and a line-of-sight direction of the user. The method includes determining whether or not the visual axis is moved from a predetermined first position to a predetermined second position. The method includes generating movement information representing that the visual axis is moved when the visual axis is moved from the predetermined first position to the predetermined second position.

Abstract: A display control method with which a captioned image can be displayed in the visual field of a user irrespective of a change in the line-of-sight direction of the user. The display control method includes a step of generating visual-field image data, which represents a visual-field image, based on the line-of-sight direction of a user and 360-degree space image data. The method further includes a step of receiving captioned image data, which represents a captioned image. The method further includes a step of displaying on an HMD a composite image of the visual-field image and from the captioned image, based on the visual-field image data and the captioned image data. The composite image is displayed is displayed at a given place in the visual-field image irrespective of a change in the line-of-sight direction of the user.

Abstract: A method includes generating a visual field image to be visually recognized by a user within a virtual space image, the virtual space image forming a virtual space within which the user is immersed. The method also includes generating a transitional image to be visually recognized by the user during a transitional period, the visual field image being updated during the transitional period. The method further includes displaying the visual field image and the transitional image using a head mounted display. Generating the transitional image includes one or more of updating the visual field image in synchronization with a movement of the head mounted display; or updating the visual field image without synchronization with the movement of the head mounted display by generating a transitional image having a reduced information amount to be visually recognized by the user.

Abstract: A method includes defining a virtual space. The virtual space includes a viewpoint associated with a first user, a first object, and a map object. At least one location option is associated with the map object. The method further includes defining a visual field based on a position of the viewpoint in the virtual space. The method further includes generating a visual-field image based on the visual field. The method further includes receiving a selection of any location option of the at least one location option by the first user. The method further includes moving the viewpoint to the selected location option. The method further includes updating the visual field based on a position of the selected viewpoint in the virtual space.

Abstract: A method according to at least one aspect of this disclosure includes defining a virtual space. The method further includes receiving a first sound signal from a first user associated with a head-mounted device (HMD). The method further includes capturing an image in the virtual space in accordance with the reception of the first sound signal. The method further includes storing the captured image corresponding to at least a part of the virtual space in accordance with the capturing of the image.