公开(公告)号：US20210021758A1

公开(公告)日：2021-01-21

申请号：US17062806

申请日：2020-10-05

Applicant: INTERDIGITAL CE PATENT HOLDINGS

Inventor： NICOLAS LE SCOUARNEC ,  Arno Schubert ,  Valter Drazic

IPC: H04N5/232 ,  H04N9/07 ,  H04N13/232 ,  H04N13/296 ,  H04N5/225 ,  G06T3/40 ,  G06T5/50

Abstract: A system and method for generating high resolution images using a plenoptic camera, is provided. In one embodiment, the comprises capturing a first set of images in a first unexcited state of operation by using a birefringent medium disposed between a main lens and an array of lenses having a plurality of apertures. Each pixel of the first set of images is then mapped to a first set of apertures. The first unexcited state is then caused to become a second excited state by applying a voltage across said birefringent medium. A second set of images are captured in the second excited state and a second set of pixels of the second image is mapped to a second set of apertures. A value is calculated for each first and second set of images and the value associated with said first set of images is subtracted from at least two times the value calculated from said second set of image.

公开(公告)号：US10931936B2

公开(公告)日：2021-02-23

申请号：US16314516

申请日：2017-06-27

Applicant: INTERDIGITAL CE PATENT HOLDINGS

Inventor： Valter Drazic ,  Arno Schubert ,  Nicolas Le Scouarnec

IPC: H04N9/04 ,  H04N9/07 ,  H04N5/232 ,  H04N13/257 ,  H04N13/296 ,  H04N5/225 ,  H04N13/232

Abstract: A system and method for generating multiple images with rich color acquisition using a plenoptic camera having a main lens disposed in front of a micro array of lenses, a mosaic color filter array and an image sensor, characterized in that it comprises: capturing a first set of images using an ordinary state of an electrically controllable birefringent medium being disposed between said main lens and said micro array of lenses, said ordinary state providing an ordinary ray to each pixel; capturing a second set of images using an extraordinary state of said electrically controllable birefringent medium, said extraordinary state splitting the light from said main lens into an ordinary ray and a extraordinary ray respectively impinging on two adjacent pixels of different colors, said extraordinary ray being shifted by distance of one pixel on said image sensor; performing a weighted subtraction of information about said second set of images from information about said first set of images; and generating a final set of images with rich color information from said weighted subtraction and said first set of images.

公开(公告)号：US12210155B2

公开(公告)日：2025-01-28

申请号：US17256159

申请日：2019-05-28

Applicant: InterDigital CE Patent Holdings

Inventor： Valter Drazic ,  Oksana Shramkova ,  Arno Schubert

IPC: G02B27/01 ,  F21V8/00 ,  G02B5/18 ,  G02B5/30 ,  G02B27/28

Abstract: It is proposed an optical device for delivering a polychromatic image to an eye box being an area positioned in front of an eye of a user wearing said optical device. The optical device is remarkable in that it comprises: • a light-engine for delivering said polychromatic image, said light engine being able to generate n different monochromatic light image beams [C1, . . . , Ci, . . . , Cn], whom combination corresponds to said polychromatic image, each monochromatic light image Cj being associated with a wavelength Ay, and wherein Ai+1>A£ for all the i E [1, n], and wherein the monochromatic light image beams Cj is in a transverse electric mode if j is odd, and the monochromatic light image beams Cj is in a transverse magnetic mode if j is even; • n-waveguide elements (502, 503, 504) that are stack on each other, n being an integer greater or equal to three, each waveguide element, except the one closer to the eye of a user, comprising a diffraction grating that can deviate only one of said n monochromatic light image in the waveguide element by total internal reflection, a first output that delivers deviated light toward said eye box, and a second output that delivers non-deviated light by a waveguide element to a subsequent waveguide element, wherein said second output comprising an achromatic half-wave plate (506, 507), and wherein the waveguide element that is closer to the eye of the user comprises also a diffraction grating that can deviate only one of said n monochromatic light image in the waveguide element by total internal reflection, and an output that delivers deviated light toward said eye box, wherein each diffraction grating of said optical device is associated with a different wavelength, and, wherein the arrangement order of said n-waveguide is done according to the wavelength value, from the smallest to the highest, the smallest waveguide element being positioned closer to the light engine.

公开(公告)号：US20230393525A1

公开(公告)日：2023-12-07

申请号：US18032122

申请日：2021-10-19

Applicant: InterDigital CE Patent Holdings, SAS

Inventor： Vincent Brac De La Perriere ,  Didier Doyen ,  Valter Drazic ,  Arno Schubert ,  Benoit Vandame

IPC: G03H1/08

CPC classification number: G03H1/0808 ,  G03H2210/30 ,  G03H2001/2281

Abstract: Processing image information associated with a 3D scene can involve obtaining image data associated with at least one layer of the 3D scene; determining at least one phase increment distribution associated with the at least one layer for modifying at the at least one layer an image size associated with the scene; and determining a propagation of an image wave front, corresponding to the at least one layer, to a result layer at a distance from the scene to form a propagated image wave front at the result layer representing a hologram of the scene, wherein determining the propagation includes applying the at least one phase increment distribution associated with the at least one layer to the image wave front at the at least one layer.

公开(公告)号：US11438503B2

公开(公告)日：2022-09-06

申请号：US17062806

申请日：2020-10-05

Applicant: INTERDIGITAL CE PATENT HOLDINGS

Inventor： Nicolas Le Scouarnec ,  Arno Schubert ,  Valter Drazic

IPC: G06K9/32 ,  H04N5/232 ,  H04N9/07 ,  H04N13/232 ,  H04N13/296 ,  H04N5/225 ,  G06T3/40 ,  G06T5/50

Abstract: A system and method for generating high resolution images using a plenoptic camera, is provided. In one embodiment, the comprises capturing a first set of images in a first unexcited state of operation by using a birefringent medium disposed between a main lens and an array of lenses having a plurality of apertures. Each pixel of the first set of images is then mapped to a first set of apertures. The first unexcited state is then caused to become a second excited state by applying a voltage across said birefringent medium. A second set of images are captured in the second excited state and a second set of pixels of the second image is mapped to a second set of apertures. A value is calculated for each first and second set of images and the value associated with said first set of images is subtracted from at least two times the value calculated from said second set of image.

公开(公告)号：US11092820B2

公开(公告)日：2021-08-17

申请号：US16313418

申请日：2017-06-30

Applicant: INTERDIGITAL CE PATENT HOLDINGS

Inventor： Laurent Blonde ,  Arno Schubert ,  Guillaume Boisson ,  Didier Doyen ,  Paul Kerbiriou ,  Olivier Bureller ,  Valter Drazic

IPC: G02B30/50 ,  H04N13/243 ,  H04N13/106 ,  G02B30/27 ,  G06T15/50

Abstract: There are several types of plenoptic devices having their proprietary file format. At present there is no standard supporting the acquisition and transmission of multidimensional information for an exhaustive over-view of the different parameters upon which a light-field depends. As such acquired light-field data for different cameras have a diversity of formats. The notion of pixel beam, which represents a volume occupied by a set of rays of light in an object space of an optical system of a camera is thus introduced. The method according to the invention enables to provide data representative of a collection of pixel beams describing a first optical system that is agnostic since these data are obtained by imaging the collection of pixel beams through a second optical system. Such data representative of a collection of pixel beams enable the generation of parametrized output images from which post-processing.

公开(公告)号：US20210271085A1

公开(公告)日：2021-09-02

申请号：US17256159

申请日：2019-05-28

Applicant: InterDigital CE Patent Holdings

Inventor： Valter Drazic ,  Oksana Shramkova ,  Arno Schubert

IPC: G02B27/01 ,  F21V8/00 ,  G02B5/18 ,  G02B27/28 ,  G02B5/30

Abstract: It is proposed an optical device for delivering a polychromatic image to an eye box being an area positioned in front of an eye of a user wearing said optical device. The optical device is remarkable in that it comprises: •a light-engine for delivering said polychromatic image, said light engine being able to generate n different monochromatic light image beams [C1, . . . , Ci, . . . , Cn], whom combination corresponds to said polychromatic image, each monochromatic light image Cj being associated with a wavelength Ay, and wherein Ai+1>A£ for all the i E [1, n], and wherein the monochromatic light image beams Cj is in a transverse electric mode if j is odd, and the monochromatic light image beams Cj is in a transverse magnetic mode if j is even; •n-waveguide elements (502, 503, 504) that are stack on each other, n being an integer greater or equal to three, each waveguide element, except the one closer to the eye of a user, comprising a diffraction grating that can deviate only one of said n monochromatic light image in the waveguide element by total internal reflection, a first output that delivers deviated light toward said eye box, and a second output that delivers non-deviated light by a waveguide element to a subsequent waveguide element, wherein said second output comprising an achromatic half-wave plate (506, 507), and wherein the waveguide element that is closer to the eye of the user comprises also a diffraction grating that can deviate only one of said n monochromatic light image in the waveguide element by total internal reflection, and an output that delivers deviated light toward said eye box, wherein each diffraction grating of said optical device is associated with a different wavelength, and, wherein the arrangement order of said n-waveguide is done according to the wavelength value, from the smallest to the highest, the smallest waveguide element being positioned closer to the light engine.