15 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 invention relates to a system for providing an aerial non-materialized projection of autostereoscopic images to an observer, the system comprising: a housing (30) comprising an opaque upper wall (20) extending parallel to a plane referred to as the viewing plane and provided with an opening; a front mirror (10) which passes through the opening at an angle, for example 45 degrees, relative to the horizontal plane, the mirror having a reflective surface facing the observer; a concave mirror (14) arranged at the bottom of the front mirror, facing the opening, and oriented with the concave and reflective surfaces thereof facing the inclined mirror; a screen (16) for displaying autostereoscopic images, which screen extends substantially perpendicular to the horizontal plane, which screen is arranged below the opaque upper wall, the distance from the image center of a concave mirror formed by the inclined mirrors being equal to the radius of curvature of the concave mirror, which screen is equipped with an array of lenses spaced apart from each other, therefore, the obvious change of the light reflected by the concave mirror can be compensated.

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.

In an autostereoscopic image generation system, two cameras, spaced apart horizontally and each having an adjustable focus, can form an initial stereoscopic image pair by capturing images of a scene while the cameras are focused on a focus plane of the scene. Processing circuitry can reconverge the initial stereoscopic image pair to have zero disparity at the focus plane of the scene to generate a final stereoscopic image pair of the scene. In other words, for the final stereoscopic image pair, the convergence plane coincides with the focus plane. When the focus of one camera is adjusted, such as manually by a user or automatically in response to a selection of a salient object in the image, the processing circuitry can automatically adjust the focus of the other camera. The processing circuitry can move the convergence plane, optionally with a low-pass filter, to follow the focus plane.

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.

DEVICE FOR AERIAL AND DEMATERIALIZED PROJECTION OF AN AUTOSTEREOSCOPIC IMAGE OR A SEQUENCE OF AUTOSTEREOSCOPIC IMAGES, IN PARTICULAR FOR USE IN AUTOMOBILES The invention relates to a system for aerial and dematerialized projection of an autostereoscopic image intended for an observer, said system comprising: a housing (30) comprising an opaque upper wall (20) extending parallel to a plane, called the horizon plane, and provided with an opening; an inclined front face mirror (10), for example at an angle of 45° relative to said horizon plane passing through said opening, said mirror having a reflective surface oriented towards said observer; a concave mirror (14) arranged at the foot of the front face mirror, opposite said opening and oriented so that its concave and reflective surface is oriented towards said inclined mirror;a display screen (16) of an autostereoscopic image extending substantially perpendicular to said horizon plane, arranged under the opaque upper wall at a distance from the middle of the image of the concave mirror formed by the inclined mirror, equal to the radius of curvature of said concave mirror, said screen being equipped with a lenticular network whose pitch is determined to be able to compensate for its apparent modification after reflection by the concave mirror. Figure for the abstract: figure 1;

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

The present disclosure relates to a screen (10) for autostereoscopic display of an autostereoscopic image considered to have photographic quality, the autostereoscopic image having M * N viewpoints of M * N, N being an odd number, M being an integer selected from 1, 2, 3, and 6, the screen comprising a panel of pixels (20) arranged in rows and columns, each pixel (26) consisting of a plurality of P active sub-pixels of different colors, an ordered array (30) of cylindrical lenses is inclined relative to the columns of the screen at an angle equal to arctan (1 / 12), said array having a pitch of N / 2 pixels in width, so as to be able to distinguish between even and odd lenses (30) of said array by different distributions of active regions (26) and black regions (24) of pixels arranged below the lenses, and if the sub-pixels of the panel are horizontal, if the sub-pixels of the panel are not horizontal, even and odd lenses (30) of said array are not horizontal. Each of M * N viewpoints distributed within N vertical blocks at a height of 6 pixels can be decoded from M viewpoints per 12 rows if sub-pixels of the panel are vertical, and each of M * N viewpoints distributed within P * N vertical blocks at a height of 6 / P can be decoded from M / P viewpoints per 12 / P rows if sub-pixels of the panel are vertical.

The invention relates to a device for aerial and dematerialised projection of a digital image (31), comprising: a housing (10) in which an opening (15) is provided, the opening forming a window for observing an actual and dematerialised aerial image of the digital image (31); an optical system comprising at least one optical component of the converging spherical mirror (24) type, the optical system being arranged in the housing (10) such that it can orient at least part of the incident light received towards the observation window (15); a screen (23) for displaying the digital image (31) to be projected, the screen being accommodated in the housing (10) opposite the spherical mirror (24) at a distance equal to twice the focal length of the spherical mirror; a prismatic grating which has 2 or 3 facets, is oriented towards the converging mirror (24) and is arranged in the vicinity of the conjugate plane of the autostereoscopic screen, so as to be able to deflect the light rays it receives from the converging mirror (24) in multiple distinct directions along which distinct observers can be positioned in order to perceive the projected autostereoscopic image.

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 type of converging spherical mirror (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;