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    Apparatus and a method for generating data representative of a pixel beam
    1.
    发明授权
    Apparatus and a method for generating data representative of a pixel beam 有权

    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.

    Multiview multiscale methods and apparatus for view synthesis
    3.
    发明授权
    Multiview multiscale methods and apparatus for view synthesis 有权

    公开(公告)号：US12155808B2

    公开(公告)日：2024-11-26

    申请号：US17642084

    申请日：2020-09-10

    Applicant: INTERDIGITAL CE PATENT HOLDINGS, SAS

    Inventor： Bertrand Chupeau ,  Tomas Volker ,  Guillaume Boisson

    IPC: H04N13/111 ,  G06T3/40 ,  G06T7/90 ,  G06V10/44 ,  G06V10/56

    Abstract: The present disclosure relates to method and apparatus for the estimation of an accurate multiplane image from a set of posed images. The accuracy of an MPI representation is measured by the performance of the views generated by it through inverse homography sampling and alpha compositing. A variable number of posed images at a possibly different resolution representative of scenes with arbitrary geometry are used as input of the system. A first level of three modules, possibly trained based on deep learning methods, is built for extracting view and scene features and color scores. Numerous levels of the same three modules may be built and organized in a structure where a level deals with down-scaled version of the posed images.

    Method and apparatus for depth-map estimation
    6.
    发明授权
    Method and apparatus for depth-map estimation 有权

    公开(公告)号：US10937180B2

    公开(公告)日：2021-03-02

    申请号：US16233603

    申请日：2018-12-27

    Applicant: INTERDIGITAL CE PATENT HOLDINGS

    Inventor： Frederic Babon ,  Benoit Vandame ,  Guillaume Boisson

    IPC: G06T7/55 ,  G06F17/16 ,  G06T3/40 ,  G06T7/00 ,  G06T7/593

    Abstract: A method and an apparatus for depth-map estimation between at least two images respectively captured by at least two cameras are disclosed. Extrinsic and intrinsic parameters of the at least two cameras are obtained. Local spatial structure descriptors for each pixel of the at least two images are obtained by transforming a patch of pixels surrounding each pixel, and depth is obtained for at least one pixel of a first image among the at least two images, among at least two depth candidates, each depth candidate being associated with a corresponding pixel in a second image of the at least two images, said corresponding pixel in the second image being determined according to the obtained extrinsic and intrinsic parameters.

    Method for filtering spurious pixels in a depth-map
    7.
    发明授权
    Method for filtering spurious pixels in a depth-map 有权

    公开(公告)号：US10832382B2

    公开(公告)日：2020-11-10

    申请号：US16147660

    申请日：2018-09-29

    Applicant: INTERDIGITAL CE PATENT HOLDINGS

    Inventor： Benoit Vandame ,  Neus Sabater ,  Guillaume Boisson

    IPC: G06T5/00 ,  G06T5/20 ,  G06T7/593 ,  H04N13/128

    Abstract: The disclosure concerns a method for filtering spurious pixels in a depth-map. It is important to filter a depth-map to remove the spurious pixels. One issue when filtering spurious pixels, is to remove them while preserving the boundaries of the real details of the depth-map. A known approach to filter spurious pixels is to use a bi-lateral filter. However, the bi-lateral filter is not efficient to remove the spurious pixels. The proposed solution enables to remove spurious pixels in a depth-map while preserving the sharp edges of the depth-map and smoothing faint details or noise.

    Method and device for generating an image
    8.
    发明授权
    Method and device for generating an image 有权

    公开(公告)号：US12184992B2

    公开(公告)日：2024-12-31

    申请号：US17798678

    申请日：2021-02-18

    Applicant: INTERDIGITAL CE PATENT HOLDINGS, SAS

    Inventor： Frederic Babon ,  Guillaume Boisson ,  Tristan Langlois

    IPC: H04N23/951 ,  H04N5/265 ,  H04N23/90

    Abstract: A method and system are provided for generating an image from each camera array in a camera array matrix. In one embodiment, the method comprises increasing redundancy between to be captured images from the camera matrix by rotating direction of any cameras disposed in upper and lower rows of said matrix by a 90 degree angle around the roll axis. Then any cameras disposed at the corners of the matrix are rotated in an angle that is less than 90 degrees around the roll axis. Subsequently, the location of central cameras are determined and analysed so that they can be rotated and disposed in a manner that provides both horizontal and vertical compensation for any redundancies.

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