An infrared polarizing filter is attached to an infrared synchronization signal radiator of a stereoscopic image display device which alternately displays right and left images by time-division with polarized light in one direction to radiate the polarized-light infrared synchronization signal. The problem with the occurrence of crosstalk is solved. Stereoscopic image appreciation eyeglasses have polarizing plates, visual field opening/closing liquid crystal cells and tilt correcting liquid crystal cells. The synchronization signal is received by a receiver mounted on an eyeglass frame. A tilt angle detector detects a tilt angle of the stereoscopic image appreciation eyeglasses. The tilt correcting liquid crystal cells are adjusted based on the eyeglass tilt angle detected.

An infrared polarizing filter is attached to an infrared synchronization signal radiator of a stereoscopic image display device which alternately displays right and left images by time-division with polarized light in one direction to radiate the polarized-light infrared synchronization signal. The problem with the occurrence of crosstalk is solved. Stereoscopic image appreciation eyeglasses have polarizing plates, visual field opening/closing liquid crystal cells and tilt correcting liquid crystal cells. The synchronization signal is received by a receiver mounted on an eyeglass frame. A tilt angle detector detects a tilt angle of the stereoscopic image appreciation eyeglasses. The tilt correcting liquid crystal cells are adjusted based on the eyeglass tilt angle detected.

A system for fitness training in a virtual environment. The system includes a cardiovascular training equipment, a head mounted device for presenting a video content associated with the virtual environment, and at least one computing device communicably coupled to the cardiovascular training equipment and the head mounted device. The at least one computing device is operable to provide the video content to the head mounted device, and modify at least one setting of the cardiovascular training equipment based on a metadata associated with the video content.

A system for fitness training in a virtual environment. The system includes a cardiovascular training equipment, a head mounted device for presenting a video content associated with the virtual environment, and at least one computing device communicably coupled to the cardiovascular training equipment and the head mounted device. The at least one computing device is operable to provide the video content to the head mounted device, and modify at least one setting of the cardiovascular training equipment based on a metadata associated with the video content.

A three-dimensional (3D) display method and system for #D display, the method including detecting a viewing angle of a user for a display screen, determining an angle of 3D projection based on the viewing angle, and performing, based on the angle of 3D projection, 3D display of content that needs to be displayed.

The disclosure provides a method for mitigating 3D crosstalk and a 3D display. The method includes: detecting first and second eye positions of a user, and determining a viewing angle of the user and a rotation angle of a head of the user accordingly; estimating a first reference position and a first midpoint position between first and second eyes of the user based on the first and second eye positions of the user; obtaining a second reference position, and estimating a difference between the first and second reference positions; correcting the first midpoint position to a second midpoint position based on the rotation angle of the user and the difference; and determining a first pixel for projecting to the first eye and a second pixel for projecting to the second eye among the pixels of the 3D display based on the second midpoint position.

The disclosure provides a method for mitigating 3D crosstalk and a 3D display. The method includes: detecting first and second eye positions of a user, and determining a viewing angle of the user and a rotation angle of a head of the user accordingly; estimating a first reference position and a first midpoint position between first and second eyes of the user based on the first and second eye positions of the user; obtaining a second reference position, and estimating a difference between the first and second reference positions; correcting the first midpoint position to a second midpoint position based on the rotation angle of the user and the difference; and determining a first pixel for projecting to the first eye and a second pixel for projecting to the second eye among the pixels of the 3D display based on the second midpoint position.

A display device includes a display, an optical modulator, an eye tracking module, and a controller. The display module includes a plurality of pixels. The optical modulator is disposed on the display module and modulates the light emitted from the display module to corresponding directions. The eye tracking module tracks the positions of a viewer's eyes. The controller defines an eye-to-eye line passing through the positions of the viewer's eyes, and generates image data of the plurality of pixels according to a plurality of viewing positions on the eye-to-eye line.

A portable system providing augmented vision of surroundings. In one embodiment the system includes a helmet, a plurality of camera units and circuitry to generate a composite field of view from channels of video data. The helmet permits a user to receive a first field of view in the surroundings based on optical information received directly from the surroundings with the user's natural vision. The camera units are mounted about the helmet to generate the multiple channels of video data. Each camera channel captures a different field of view of a scene in a region surrounding the helmet.

A portable system providing augmented vision of surroundings. In one embodiment the system includes a helmet, a plurality of camera units and circuitry to generate a composite field of view from channels of video data. The helmet permits a user to receive a first field of view in the surroundings based on optical information received directly from the surroundings with the user's natural vision. The camera units are mounted about the helmet to generate the multiple channels of video data. Each camera channel captures a different field of view of a scene in a region surrounding the helmet.