Abstract: A virtual reality-based eyeball tracking method and system are provided. Eyeball calibration data is presented to eyes of a user through a display, and then a binocular pupillary distance of the user is obtained through the eyeball calibration data. A left tracking camera captures reflected infrared light of a turned on left infrared light source, and a right tracking camera captures reflected infrared light of a turned on right infrared light source, so that tracking data of one eye is formed in each specific frame. Tracking data of the other eye in the specific frame is calculated according to the binocular pupillary distance and the tracking data of one eye. The tracking data of one eye and the tracking data of the other eye are arranged according to a time sequence of the specific frame to form binocular tracking data so as to complete eyeball tracking.

Abstract: A side-strap structure for a head-mounted device is disclosed. The side-strap structure comprises an outer strap shell, a strap, a middle strap shell, a bottom strap shell and a strap locker; the bottom strap shell is rotatably fixed to a main body of the head-mounted device through the strap locker, the middle strap shell is fixed between the outer strap shell and the bottom strap shell, and one end of the strap is fixed between the outer strap shell and the middle strap shell; and an accommodating slot for placing a loudspeaker is provided on an inner side of one end of the bottom strap shell, the middle strap shell is hermetically connected to the bottom strap shell after the loudspeaker is placed into the accommodating slot, and a sound emitting hole of the loudspeaker is provided on an outer side of the other end of the bottom strap shell.

Abstract: A localization and tracking method, a localization and tracking platform, a head-mounted display system, and a computer-readable storage medium are provided. One or more images of odd frames and one or more images of even frames that are respectively collected with a preset first exposure duration and a preset second exposure duration by one or more tracking cameras arranged on a head-mounted display device are acquired, the one or more images of even frames at least containing blobs corresponding to multiple luminous bodies arranged on a gamepad; Degree of Freedom (DoF) information of the head-mounted display device is determined according to the one or more images of odd frames and attitude information of the head-mounted display device; and DoF information of the gamepad is determined according to the one or more images of even frames, attitude information of the gamepad, and the DoF information of the head-mounted display device.

Abstract: The present disclosure discloses a model loading method and apparatus for a head-mounted display device and a head-mounted display device. The method includes: obtaining a type of a target handheld device, in which the target handheld device is a handheld device connected to a current application service; determining whether the type of the target handheld device is an existing type in the head-mounted display device; obtaining, in response to the type of the target handheld device being not the existing type in the head-mounted display device, corresponding model resource data based on the type of the target handheld device; and generating, based on the model resource data, a handheld model corresponding to the target handheld device, and loading the handheld model.

Abstract: A local perspective method and device of a virtual reality equipment and a virtual reality equipment are disclosed. The method comprises: identifying a user's hand action; triggering a local perspective function of the virtual reality equipment if the user's hand action satisfies a preset trigger action; and under the local perspective function, determining a local perspective display area in a virtual scene according to a position of the user's hand action, so as to display a real scene in the local perspective display area. The local perspective method of the virtual reality equipment according to the present disclosure can determine the range of the area to be perspectively displayed by using the user's hand action. Compared with the conventional global perspective solution, it can be applicable to more and richer application scenarios, and can greatly improve the user's use experience.

Abstract: An interaction method and system based on virtual reality equipment are disclosed. The method comprises: rendering a user avatar of each virtual reality equipment in the virtual reality scene of each virtual reality equipment according to user data of multiple virtual reality equipments; acquiring in real time position-posture tracking data of multiple users collected by multiple virtual reality equipments, wherein the position-posture tracking data carries user IDs; merging the position-posture tracking data of multiple users based on the user IDs carried by the position-posture tracking data, to obtain position-posture merging data of each user, wherein the position-posture merging data carries user ID; and updating position-posture status of user avatars having a same user ID in the virtual reality scene of each virtual reality equipment by using the position-posture merging data and its carried user IDs, to realize interaction among different user avatars in the virtual reality scene.

Abstract: A head-mounted display system and a 6-degree-of-freedom tracking method and apparatus thereof are disclosed. The method includes: controlling two channels of tracking cameras so that central moments of exposure durations of each frame of the two channels of tracking cameras are same, and controlling so that a lightening moment of the LED lights on the handle controller is synchronized with the middle moment of the exposure duration of an even-number frame of the two channels of tracking cameras; calculating 6-degree-of-freedom tracking data of the head-mounted display device in a three-dimensional space in real time according to acquired image data of an odd-number frame of the two channels of tracking cameras; and calculating 6-degree-of-freedom tracking data of the handle controller in the three-dimensional space in real time according to acquired image data of an even-number frame of the two channels of tracking cameras.

Abstract: A method for locating a VR device and a VR device is applied to a head-mounted displaying device of the VR device, and includes: sending a locating and synchronizing signal to the handle at a first preset interval, so that the handle controls each of LED lights of the LED light ring according to the locating and synchronizing signal to lighten for a first preset duration; simultaneously while the head-mounted displaying device is sending the locating and synchronizing signal, controlling, by the head-mounted displaying device, the camera to expose for a second preset duration to photograph the handle to obtain at least one locating photograph, wherein a starting time of the second preset duration is earlier than a starting time of the first preset duration, and the second preset duration is longer than the first preset duration; and determining spatial-position information of the handle according to the locating photograph.

Abstract: Positioning a handle in a head mounted display system, and a head mounted display system. A wireless radio frequency master device is used on a head mounted device in the head mounted display system to perform operations of pairing with a wireless radio frequency slave device of a first handle and a wireless radio frequency slave device of a second handle. An electromagnetic wave receiver is used to receive electromagnetic waves emitted by an electromagnetic wave emitter of the first handle and an electromagnetic wave emitter of the second handle and generate an induced electromotive force. And, calculating position and posture information corresponding to the first handle and information of position and posture corresponding to the second handle respectively, wherein the position and posture information includes position translation information and direction rotation information when the wearer wears the first handle or the second handle.

Abstract: Positioning a handle in a head mounted display system, and a head mounted display system. A wireless radio frequency master device is used on a head mounted device in the head mounted display system to perform operations of pairing with a wireless radio frequency slave device of a first handle and a wireless radio frequency slave device of a second handle. An electromagnetic wave receiver is used to receive electromagnetic waves emitted by an electromagnetic wave emitter of the first handle and an electromagnetic wave emitter of the second handle and generate an induced electromotive force.

Abstract: A top binding band includes a connection binding band provided with a connection wire, and an elastic adjustable binding band below the connection binding band, wherein the connection binding band electrically connects, through the connection wire, a front-end member and a rear-end member of the head-mounted apparatus. The connection binding band can realize electrical connection between the front and rear members of the head-mounted apparatus. The adjustable binding band is located at the lower side and firstly comes into contact with the head to realize elastic support, thereby preventing the connection binding band with the fixed length and having the connection wire from being pulled, so as to enable the electrical connection to be safer and more reliable.