A 3D display control system and method are provided. The system includes: a display module, including a plurality of pixel units; an eye position detection device, configured to detect first position moving information and second position moving information; and a lens plate, located at a light emergent side of the display module, and configured to generate a plurality of first lens equivalent units and a plurality of second lens equivalent units, wherein at least one pixel unit directly below each first lens equivalent unit forms a first pixel unit group, and each first lens equivalent unit is configured to redirect light from the first pixel unit group directly therebelow toward a first position.

A video pass-through computing system includes a head-mounted display device including a display, a camera configured to image a physical scene according to an exposure timing, and an augmented reality control circuit configured to receive a virtual image pixel stream and composite the camera image pixel stream with the virtual image pixel stream to generate a display image pixel stream output to the display, and if a corresponding pixel of the camera image pixel stream is not in temporal synchronization with a pixel of the virtual image pixel stream adjust the exposure timing of the camera.

A method for realizing multi-viewpoint 3D display screen correction is provided, comprising: determining a correction area in a multi-viewpoint 3D display screen, and detecting a reference correlation between subpixels in composite subpixels in composite pixels in the multi-viewpoint 3D display screen and viewpoints of the multi-viewpoint 3D display screen; and determining a correction correlation between the subpixels in the correction area and the viewpoints based on the reference correlation. The method can reduce the difficulty in correcting an actual correlation between the pixels and the viewpoints. A multi-viewpoint 3D display method, a multi-viewpoint 3D display apparatus, a computer-readable storage medium, and a computer program product are also provided.

One disclosed example provides a method for displaying a hologram via a head-mounted display (HMD) device. The method comprises, via a camera system on the HMD device, acquiring image data capturing a surrounding environment by detecting illumination light output by a projector located on a case for the HMD device. A distance is determined from the HMD device to an object in the surrounding environment based upon the image data. The method further comprises displaying via the HMD device a hologram, the hologram comprising a left-eye image and a right-eye image each having a perspective based upon the distance determined.

A three-dimensional display device includes a display panel, an optical panel, and a controller. The display panel displays a parallax image. The optical panel defines a traveling direction of image light. The controller controls the parallax image based on positions of a first eye and a second eye of a user. The controller causes a predetermined proportion of pixels to display a black image. The predetermined proportion is determined to cause, for the first and second eyes of the user at a predetermined reference position, a black image to be displayed by a pixel at one end or two ends of multiple first areas viewable to the first eye and not viewable to the second eye and by a pixel at one end or two ends of multiple second areas viewable to the second eye and not viewable to the first eye in a parallax direction.

A hand-held turbine cleaning tool includes front and rear housings coupled to each other, an outlet at one end of the tool, and a top of the tool at an opposed end. The outlet is directed in a first direction away from the top. An inlet is disposed between the outlet and the top and is also directed in the first direction. A diverter valve at the inlet is moveable between on and off positions. The on position directs water flowing into the inlet from the inlet, up to the top in a second direction opposite the first direction, and then down to the outlet in the first direction. A turbine at the top has a turbine shaft that extends outside the tool. An abrasive member is connected to the turbine shaft and is configured to rotate when water flows from the inlet to the outlet.

A vehicular camera monitoring system includes a pair of rearward viewing cameras disposed at a vehicle with overlapping fields of view. A driver-monitoring camera is disposed at the vehicle. An ECU includes an image processor that processes image data captured by the driver-monitor camera and the rearward viewing cameras. A stereographic video display screen is disposed at the vehicle and viewable by the driver of the vehicle. Responsive to processing of image data captured by the driver-monitoring camera, the ECU determines location of each eye of the driver of the vehicle. Responsive to processing of image data captured by each of the rearward viewing cameras, the stereographic video display screen displays video images derived at least in part from image data captured by both rearward viewing cameras and provides depth perception to the driver of the vehicle viewing the displayed video images.

A vehicular camera monitoring system includes a pair of rearward viewing cameras disposed at a vehicle with overlapping fields of view. A driver-monitoring camera is disposed at the vehicle. An ECU includes an image processor that processes image data captured by the driver-monitor camera and the rearward viewing cameras. A stereographic video display screen is disposed at the vehicle and viewable by the driver of the vehicle. Responsive to processing of image data captured by the driver-monitoring camera, the ECU determines location of each eye of the driver of the vehicle. Responsive to processing of image data captured by each of the rearward viewing cameras, the stereographic video display screen displays video images derived at least in part from image data captured by both rearward viewing cameras and provides depth perception to the driver of the vehicle viewing the displayed video images.

The present invention relates to the field of three-dimensional display technology, and more specifically, to a glasses-free light-field display method based on asymmetric light distribution of a projecting beam. In the method described in this patent application, beam projected by a pixel or a sub-pixel of a display device is guided to the corresponding pixel-viewing-zone or sub-pixel-viewing-zone of an asymmetric shape, by a corresponding modulation element. Based on these asymmetric pixel-viewing-zones or sub-pixel-viewing-zones, viewing zones for different pixel groups or sub-pixel groups are designed with different arrangement densities along different directions, to realize glasses-free light-field display with a reduced number of viewing zones. Time multiplexing is further introduced for presenting more viewing zones.

An information processing apparatus (30) includes: an estimation unit (33B) that estimates the crosstalk amount based on a relative positional relationship between a viewing position of a viewer of a display device (10) and a pixel a screen of the display device (10); and a generation unit (33C) that generates an image to be displayed on the display device (10) by correcting a value of each of a plurality of pixels of the screen based on the crosstalk amount.