Abstract: A method and system for aligning exposure center points of multiple cameras in a VR system are provided. The method includes: acquiring image data of a first type frame according to a preset frame rate; adjusting VTS data of the first type frame, the VTS data changing with the change of the exposure parameters so as to fix a time interval between an exposure center point of the first type frame and an FSIN synchronization signal in a VR system; acquiring image data of a second type frame according to the preset frame rate; and adjusting VTS data of the second type frame according to the VTS data of the first type frame, and fixing a time interval between an exposure center point of the second type frame and the FSIN synchronization signal so as to complete the alignment of exposure center points of the cameras.

Abstract: A VR system and a positioning and tracking method of the VR system are provided. The VR system includes a head-mounted display and a gamepad. The head-mounted display includes a first inertial sensor, a first processor, and first cameras. The gamepad includes a second inertial sensor and second cameras. The first processor is configured to obtain 6DOF data of the head-mounted display under a world coordinate system based on the inertial data of the head-mounted display obtained by the first inertial sensor and the external environment images of the head-mounted display obtained by the first cameras, obtain 6DOF data of the gamepad under the world coordinate system based on the inertial data of the gamepad obtained by the second inertial sensor and the external environment images of the gamepad obtained by the second cameras, and generate 6DOF data of the gamepad on the head-mounted display.

Abstract: An adaptive VR system is provided, which includes a headset and a handle, the headset comprises a headset camera, a control end, and an electromagnetic receiving module, and the control end comprises a control end database and a data selection module; the handle comprises a handle camera and an electromagnetic transmitting module; the headset camera is configured to acquire an external environment image in a headset coordinate system; the handle camera is configured to acquire an external environment image in a handle coordinate system; the control end database is configured to store the external environment image of the handle coordinate system; the data selection module is configured to determine a tracking mode used for tracking the handle, the tracking mode comprising optical tracking; and the electromagnetic receiving module is connected to the data selection module.

Abstract: The embodiments of the disclosure relate to an image acquisition method, a handle device, a head-mounted device and a head-mounted system. The handle device comprises a shell and a control module arranged in the shell. A switch control end of an infrared circuit is connected with the control module, and infrared light beads of the infrared circuit penetrate outwards through the shell; and a switch control end of a visible light circuit is connected with the control module, and visible light strips of the visible light circuit penetrate outwards through the shell. Through visible light and infrared light set on the handle, the position of the handle device can be judged, and the tracking accuracy is extremely high.

Abstract: Provided is a high-precision anti-interference VR system, including a data selection module, a headset, and a handle matched with the headset, the data selection module selects and invokes an optical tracking module group and an electromagnetic tracking module group according to an optical FOV range; the optical tracking module group includes an optical display module and an optical tracking module, the optical display module emits a physical signal by adjusting on-off and brightness thereof; the optical tracking module obtains the physical signal emitted by the optical display module, and converts the physical signal into tracking information of the handle; the electromagnetic tracking module group includes an electromagnetic emission module and an electromagnetic receiving module, the electromagnetic emission module generates an electromagnetic signal through a driving circuit, and transmits the electromagnetic signal; and the electromagnetic receiving module receives the electromagnetic signal to complete

Abstract: Provided are a head-mounted display device and a head-mounted display system. The head-mounted display device includes: a processor, a first interface, a transfer switch, a wireless communication module and a display screen, the wireless communication module is configured to be in wireless communication connection with a hand-held controller; the processor is configured to control the transfer switch to switch for communication between the first interface and the display screen when detecting that the first interface is connected to a host, and send first position data and second position data to the host via the first interface, so as to allow the host to render an image according to the first position data and the second position data and to output and display a rendered image on the display screen via the first interface.

Abstract: The present disclosure provides a virtual reality system. The virtual reality system of the disclosure, comprising: a head-mounted display, an input device and a positioning module, wherein the head-mounted display comprises a central processing unit, a camera module connected with the central processing unit and a wireless connection module; the camera module comprises a binocular fisheye camera, an IR camera and a TOF camera, the positioning module comprises a first inertial measurement unit and an electromagnetic receiver provided on the head-mounted display, a second inertial measurement unit and an electromagnetic transmitter provided on the input device; the central processing unit, configured to implement data interaction and command control with the binocular fisheye camera, the IR camera, the TOF camera, the wireless connection module, the first inertial measurement unit and the electromagnetic receiver.

Abstract: A method and system for aligning exposure center points of multiple cameras in a VR system are provided. The method includes: acquiring image data of a first type frame according to a preset frame rate; adjusting VTS data of the first type frame, the VTS data changing with the change of the exposure parameters so as to fix a time interval between an exposure center point of the first type frame and an FSIN synchronization signal in a VR system; acquiring image data of a second type frame according to the preset frame rate; and adjusting VTS data of the second type frame according to the VTS data of the first type frame, and fixing a time interval between an exposure center point of the second type frame and the FSIN synchronization signal so as to complete the alignment of exposure center points of the cameras.

Abstract: A VR system and a positioning and tracking method of the VR system are provided. The VR system includes a head-mounted display and a gamepad. The head-mounted display includes a first inertial sensor, a first processor, and first cameras. The gamepad includes a second inertial sensor and second cameras. The first processor is configured to obtain 6DOF data of the head-mounted display under a world coordinate system based on the inertial data of the head-mounted display obtained by the first inertial sensor and the external environment images of the head-mounted display obtained by the first cameras, obtain 6DOF data of the gamepad under the world coordinate system based on the inertial data of the gamepad obtained by the second inertial sensor and the external environment images of the gamepad obtained by the second cameras, and generate 6DOF data of the gamepad on the head-mounted display.

Abstract: Provided is a high-precision anti-interference VR system, including a data selection module, a headset, and a handle matched with the headset, the data selection module selects and invokes an optical tracking module group and an electromagnetic tracking module group according to an optical FOV range; the optical tracking module group includes an optical display module and an optical tracking module, the optical display module emits a physical signal by adjusting on-off and brightness thereof; the optical tracking module obtains the physical signal emitted by the optical display module, and converts the physical signal into tracking information of the handle; the electromagnetic tracking module group includes an electromagnetic emission module and an electromagnetic receiving module, the electromagnetic emission module generates an electromagnetic signal through a driving circuit, and transmits the electromagnetic signal; and the electromagnetic receiving module receives the electromagnetic signal to complete

Abstract: The embodiments of the disclosure relate to an image acquisition method, a handle device, a head-mounted device and a head-mounted system. The handle device comprises a shell and a control module arranged in the shell. A switch control end of an infrared circuit is connected with the control module, and infrared light beads of the infrared circuit penetrate outwards through the shell; and a switch control end of a visible light circuit is connected with the control module, and visible light strips of the visible light circuit penetrate outwards through the shell. Through visible light and infrared light set on the handle, the position of the handle device can be judged, and the tracking accuracy is extremely high.

Abstract: Provided are a head-mounted display device and a head-mounted display system. The head-mounted display device includes: a processor, a first interface, a transfer switch, a wireless communication module and a display screen, the wireless communication module is configured to be in wireless communication connection with a hand-held controller; the processor is configured to control the transfer switch to switch for communication between the first interface and the display screen when detecting that the first interface is connected to a host, and send first position data and second position data to the host via the first interface, so as to allow the host to render an image according to the first position data and the second position data and to output and display a rendered image on the display screen via the first interface.

Abstract: A method includes, but is not limited to, arranging several linear motors based on a 3D spherical model to form a linear motor matrix, and determining an azimuth of each linear motor on the 3D spherical model, performing information extraction for received 3D audio signal, and obtaining azimuth, frequency and amplitude information of the 3D audio signal reaching a central position of the 3D spherical model, generating a motor drive signal according to the azimuth, frequency and amplitude information of the 3D audio signal reaching a central position of the 3D spherical model, and driving a linear motor in the linear motor matrix within a certain scope away from the azimuth of the 3D audio signal to vibrate.

Abstract: A method includes, but is not limited to, arranging several linear motors based on a 3D spherical model to form a linear motor matrix, and determining an azimuth of each linear motor on the 3D spherical model, performing information extraction for received 3D audio signal, and obtaining azimuth, frequency and amplitude information of the 3D audio signal reaching a central position of the 3D spherical model, generating a motor drive signal according to the azimuth, frequency and amplitude information of the 3D audio signal reaching a central position of the 3D spherical model, and driving a linear motor in the linear motor matrix within a certain scope away from the azimuth of the 3D audio signal to vibrate.

Abstract: Disclosed are a control method of plasma TV, a Bluetooth touch control pen and a plasma TV, the method comprising: configuring all or part of the pixel points of a plasma TV screen to transmit a light signal carrying pixel position information; a touch control pen receiving the light signal by contacting the screen, calculating the pixel coordinate values of the position of a contact point on the screen according to the pixel position information in the light signal, and transmitting the calculated pixel coordinate values to the plasma TV via Bluetooth transmission; the plasma TV conducting a corresponding operation according to the received pixel coordinate values. The present invention realizes a novel touch control solution for large screen plasma TVs, and the solution has good user experience and low cost.