公开(公告)号：US11995855B2

公开(公告)日：2024-05-28

申请号：US17258373

申请日：2019-07-18

Applicant: InterDigital CE Patent Holdings, SAS

Inventor： Didier Doyen ,  Valerie Allie ,  Tristan Langlois

IPC: G06T7/11 ,  G06T7/557

CPC classification number: G06T7/557 ,  G06T7/11 ,  G06T2207/10052

Abstract: A method is proposed for detecting occlusions in an image captured by a light field capturing system, comprising, for at least one reference image belonging to a matrix of images captured by the light field capturing system: —calculating a depth map and a visibility map for pixels in the reference image; —determining at least one candidate area in the reference image in which the potential occlusion may occur based at least on a segmentation of the depth map; —determining an information representative of an occlusion state in the at least one candidate area based at least on visibility values of the visibility map associated with at least two neighborhoods of the at least one candidate area.

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.

公开(公告)号：US11202052B2

公开(公告)日：2021-12-14

申请号：US16622269

申请日：2018-06-07

Applicant: InterDigital CE Patent Holdings, SAS

Inventor： Paul Kerbiriou ,  Valerie Allie ,  Tristan Langlois

IPC: H04N13/122 ,  H04N13/383 ,  G06T15/20

Abstract: The present disclosure concerns a method for displaying, on a 2D display device, a content derived from 4D light field data, based on a viewing position of a user. The 4D light field data corresponds to data acquired by either several cameras or by a plenoptic device. The method comprises: obtaining a volume in front of said 2D display device in which no disocclusions are present, said volume being defined according to optical and geometry parameters of an acquisition device that has acquired said 4D light field data, a size of a screen of said 2D display device, and an anchor plane in said content, said anchor plane being perceived as static in case of movement of a user relative to said 2D display device; determining a modified volume from said volume, comprising modifying a size of said volume, for modifying possible movements of a user positioned within the modified volume compared to movements of said user within said volume; providing means for guiding said user within said modified volume according to said viewing position of said user.

公开(公告)号：US20210233266A1

公开(公告)日：2021-07-29

申请号：US17258373

申请日：2019-07-18

Applicant: InterDigital CE Patent Holdings, SAS

Inventor： Didier Doyen ,  Valerie Allie ,  Tristan Langlois

IPC: G06T7/557 ,  G06T7/11

Abstract: A method is proposed for detecting occlusions in an image captured by a light field capturing system, comprising, for at least one reference image belonging to a matrix of images captured by the light field capturing system: —calculating a depth map and a visibility map for pixels in the reference image; —determining at least one candidate area in the reference image in which the potential occlusion may occur based at least on a segmentation of the depth map; —determining an information representative of an occlusion state in the at least one candidate area based at least on visibility values of the visibility map associated with at least two neighborhoods of the at least one candidate area.