Disclosed are a system and method for measuring viewing zone characteristics of an autostereoscopic three-dimensional (3D) image display device. The system for measuring viewing zone characteristics of the autostereoscopic 3D image display device includes at least one image sensor that is provided on a front side of the image display device, and measures characteristics of luminance distribution of viewpoint images in a depth direction (Z-direction) formed from at least two local areas which are designated in advance in a horizontal direction (X-direction) of the image display device, and a determination unit that determines, as an optimum viewing distance (OVD), a position of the image sensor corresponding to a depth direction (Z-direction) having a horizontal direction (X-direction) minimum deviation of a center position of luminance distribution of light generated from the same viewpoint image of each of the at least two local areas by analyzing the characteristics of luminance distribution on an X-Z plane measured from the image sensor.

Methods, systems, and computer programs are presented for the presentation of images in a head-mounted display (HMD). One HMD includes a screen, a processor, inertial sensors, a motion tracker module, and a display adjuster module. The motion tracker tracks motion of the HMD based on inertial data from the inertial sensors, and the display adjuster produces modified display data for an image frame to be scanned to the screen if the motion of the HMD is greater than a threshold amount of motion. The display data includes pixel values to be scanned to rows in sequential order, and the modified display data includes adjusted pixel values for pixels in a current pixel row of the image frame to compensate for the distance traveled by the HMD during a time elapsed between scanning a first pixel row of the image frame and scanning the current pixel row of the image frame.

A head-mounted display having a first light incident region and a first light emitting region is provided. The head-mounted display includes a first light-guide plate, a first micro-display, a first reflector, a first collimating lens and a first filling structure. A first inner surface of the first light-guide plate has plural first hollow microstructures located in the first light emitting region. The first micro-display is located in the first light incident region and faces the first inner surface. The first reflector is located in the first light incident region, obliquely disposed at the first light-guide plate and faces the first micro-display. The first collimating lens is disposed between the first reflector and the first micro-display. The first filling structure fills in the first hollow microstructures, wherein a refractive index of the first filling structure is greater than a refractive index of the first light-guide plate.

[Object] To provide a spectacle-style display device for medical use with which it is possible to change a magnification of an enlarged image, even during surgery. [Solution] Provided is a spectacle-style display device for medical use, including: a display unit through which a surgical field is visible, and which can display an image; two imaging units that image the surgical field; an image processing unit that, on a basis of captured images imaged by the imaging units, generates a three-dimensional enlarged image to be displayed on the display unit; and a control unit that modifies a magnification of the enlarged image on a basis of a user instruction.

The present invention relates to a prism sheet for auto-stereoscopic 3D display that is installed on the top of a liquid crystal display panel. The prism sheet for auto-stereoscopic 3D display according to the present invention, comprises a plurality of prisms disposed parallel to each other, each of which includes a central portion of which the upper and lower surfaces are parallel to each other, the central portion having a width corresponding to a plurality of subpixel columns of the liquid crystal display panel; a left inclined portion that is installed on a left side of the central portion and refracts light such that a user can view the left half of the plurality of subpixel columns covered by the central portion, wherein the left half subpixel column is visible to a user; and a right inclined portion that is installed on a right side of the central portion and refract light such that the user can view the right half of the plurality of subpixel columns covered by the central portion.

A laser system for generation of three-dimensional (3D) colored images is based on semiconductor laser sources generating laser light at a plurality of wavelengths. The laser source for each basic color range (red, green and blue) is formed on a single chip. The chip can be an array of the distributed feedback lasers or an array of distributed Bragg reflector lasers, each of which generates laser light at its own wavelength, or a COMB laser generating laser light at a plurality of wavelengths.

All light illuminates a two-dimensional (2D) display, and the light transmitted through the display or reflected by the display at a given color range impinges on an optical unit, containing a first optical element, e.g., a lens or a mirror, the focal length of which is wavelength-sensitive. Light at different wavelengths forms 2D images at different depths. Then, once the images created by the display and the laser pulses at each wavelength are synchronized, all images of the given colored range are perceived by the human's eyes as a single 3D image of this color range.

To fuse 3D images in red, green and blue that are formed at different positions, an optical element, e. g., a lens or a mirror is employed, the focal length of which is adjustable by mechanical motion, or deformation, or applying an electro-optic effect in an electric field. This optical element can be either the same first element with the wavelength-dependent focal length, or a different element. Then, once the light is switched between red, green and blue color ranges, the adjustable focal length of this element is adjusted such to compensate a change of the focal length of the first element, and the focal length of the entire optical unit is restored. Then the human's eyes average the perceived light and see a smoothly moving fully colored 3D image.

A head-up display system comprises a microprojector, first and second viewer optics, a redirection optic, and an electronic controller. Switchable electronically between first and second optical states, the redirection optic is configured to receive a display image from the microprojector, to convey the display image, in the first optical state, to the first viewer optic, and to convey the display image, in the second optical state, to the second viewer optic. The electronic controller is configured to, during a first interval, switch and maintain the redirection optic in the first optical state and cause the microprojector to form the display image based on first image data. The electronic controller is further configured to, during a second interval, switch and maintain the redirection optic in the second optical state and cause the microprojector to form the display image based on second image data.

A measuring method and a measuring system are used for measuring contrast of a display device, including controlling the display device to display a first image, measuring brightness of a central area of the first image, controlling the display device to display a second image, measuring brightness of a central area of the second image, and determining the contrast. Both the first image and the second image have a plurality of areas with different gray scales, the first image includes a maximum gray scale area, and the second image includes a minimum gray scale area.

Presented herein are methods and systems for visualizing an object region. The system including an electronic image capturing device, comprising an optical assembly, which provides a first optical channel for a first imaging beam path imaging the object region on a first sensor area of the image capturing device and a second optical channel for a second imaging beam path imaging the object region on a second sensor area of the image capturing device and which contains a microscope main objective system, through which the first imaging beam path and the second imaging beam path pass, comprising a first image producing device for the visualization of the object region for a first observer, to whom a first image of the object region, captured on the first sensor area, and a second image of the object region, captured on the second sensor area, are suppliable, and comprising a second image producing device for visualizing the object region for a second observer.

One embodiment provides a method comprising receiving a piece of content and salient moments data for the piece of content. The method further comprises, based on the salient moments data, determining a first path for a viewport for the piece of content. The method further comprises displaying the viewport on a display device. Movement of the viewport is based on the first path during playback of the piece of content. The method further comprises generating an augmentation for a salient moment occurring in the piece of content, and presenting the augmentation in the viewport during a portion of the playback. The augmentation comprises an interactive hint for guiding the viewport to the salient moment.