8 results about "Autostereogram" patented technology

An apparatus comprises an interface and a processor. The interface may be configured to receive at least four pixel data streams corresponding to an exterior view from a vehicle. The processor may be configured to process the at least four pixel data streams arranged as video frames, calculate depth information for each pixel of the at least four pixel data streams using the video frames, calculate a 3D point cloud by fusing the depth information for each of the at least four pixel data streams, and generate 3D images for a 3D display in response to the 3D point cloud. The 3D display may be configured to direct an autostereoscopic image to a viewer.

The set of inventions relates to a user eye tracking method and may be used for AR / VR / MR / XR formation systems. According to a user eye tracking method, a camera monitors a user's eye, a corneal contact lens containing an optical structure forming a stereoscopic image is placed on the user's eye, and a position of the user's eye is determined from a linear size and an angular position of the image with respect to the camera. The optical structure can be implemented as an auto-stereogram and decoding slit grid, wherein the auto-stereogram is formed by reflecting the slit grid in a specular coating or by a shadow projected by the slit grid on a diffusely reflective coating. The optical structure may be formed from a real image or a hologram. The present invention makes it possible to improve the accuracy in measuring the position of a corneal contact lens and thereby measuring the position of a user's eye.

The present invention relates to a screen (10) for the autostereoscopic display, considered to be of photographic quality, of autostereoscopic images with M x N viewpoints, where N is an odd integer and M is an integer selected from 1, 2, 3 and 6, said screen comprising a panel (20) of pixels arranged by rows and columns, each pixel (26) consisting of a plurality of P active sub-pixels of different colors, and a regular array of cylindrical lenses (30) inclined at an angle equal to arctan(1 / 12) with respect to the columns of the screen, said array comprising , with a pitch of N / 2 pixels wide so that even and odd lenses (30) of the array can be distinguished by the different distribution of the active zones (26) and black zones (24) of the pixels located under the lenses, and so that each of the M×N viewpoints can be decoded, distributed in N vertical blocks of 6 pixels high, consisting of M viewpoints by 12 rows when the panel's subpixels are horizontal, and in P×N vertical blocks of 6 / P subpixels high, consisting of M / P viewpoints by 12 / P rows when the panel's subpixels are vertical.

The invention relates to a system for the aerial and virtual projection of autostereoscopic images intended for an observer, said system comprising a housing (30) with an opaque upper wall (20) extending parallel to a plane called the horizontal plane and provided with an opening, a front surface mirror (10) having a reflective surface inclined, for example at an angle of 45° with respect to the horizontal plane passing through said opening, and directed towards said observer, a concave mirror (14) arranged at the base of the front surface mirror, facing said opening and oriented so that its concave reflective surface is directed towards said inclined mirror, and a display screen (16) for displaying an autostereoscopic image extending substantially perpendicular to said horizontal plane, said display screen (16) being arranged below the opaque upper wall at a distance from the centre of the concave mirror image formed by the inclined mirror equal to the radius of curvature of said concave mirror, said display screen having a lenticular array attached to it, the pitch of which is determined so as to be able to compensate for its apparent modification after reflection by the concave mirror.

The invention relates to a screen (10) for displaying an autostereoscopic image with N viewpoints ordered from 1 to N, formed from a series of even-numbered viewpoints and a series of odd-numbered viewpoints, the screen comprising a panel (30) of pixels arranged in ordered rows (L1, L2, L3, L4) and columns, each pixel being composed of a plurality of active subpixels (SP) in 10 different colors, each assigned to a viewpoint of the image; an ordered array (40) of cylindrical lenses (42) mounted on the pixel panel, each lens being inclined relative to the columns of the panel by an angle (α) equal to arctan (1 / 6) such that the series of even-numbered viewpoints and the series of odd-numbered viewpoints of the autostereoscopic image can be interleaved with one another.

AERIAL AND DEMATERIALIZED PROJECTION DEVICE OF AN AUTOSTEREOSCOPIC IMAGE FOR SEVERAL DISTINCT OBSERVERS The invention relates to an aerial and dematerialized projection device of a digital image (31) comprising: a housing (10) in which an opening (15) is provided, forming an observation window of a real aerial image and a dematerialized version of said digital image (31); an optical system comprising at least one optical component of the converging spherical mirror type (24), said optical system being arranged in said housing (10) so that it can direct at least part of the incident light received towards said observation window (15); a display screen (23) for the said digital image (31) to be projected housed in said casing (10) opposite said spherical mirror (24) at a distance equal to twice the focal length of the spherical mirror;a prismatic grating with 2 or 3 facets, oriented towards said converging mirror (24) and arranged in the vicinity of the conjugate plane of said autostereoscopic screen, so as to be able to deflect the light rays which it receives from the converging mirror (24) in several distinct directions along which distinct observers can be positioned to perceive the projected autostereoscopic image. Figure for the abbreviation: figure 1;

An image processing platform having automatically autostereoscopic 3D image generating function includes a receiving module and an image converting module. The receiving module receives a target image and an autostereoscopic 3D image information from an external device. The autostereoscopic 3D image information includes a screen number information, a screen size information, a position relation between an optimized viewing position and a screen reference point and a field of view. The image converting module is connected to the receiving module and executes a texture baking process according to the autostereoscopic 3D image information so as to convert the target image into an autostereoscopic 3D image.

AUTOSTEREOSCOPIC DISPLAY SCREEN EQUIPPED WITH A VERY HIGH DEFINITION PIXEL PANEL The invention relates to a screen (10) for displaying an autostereoscopic image with N viewpoints ordered from 1 to N, consisting of a series of even viewpoints and a series of odd viewpoints, the screen comprising a panel (30) of pixels arranged by rows (L1, L2, L3, L4) and by ordered columns, each pixel being composed of a plurality of active sub-pixels (SP) of different colors, each assigned to a viewpoint of the image; an ordered array (40) of cylindrical lenses (42) mounted on said pixel panel, each lens being inclined with respect to the columns of the panel at an angle (α) equal to arctan (1 / 6) so as to be able to interleave said series of even viewpoints and said series of odd viewpoints of the autostereoscopic image. Figure for the abbreviation: Figure 1