公开(公告)号：US20200088651A1

公开(公告)日：2020-03-19

申请号：US16618559

申请日：2018-05-31

Applicant: SAINT-GOBAIN GLASS FRANCE

Inventor： Romain DECOURCELLE ,  Olivier DUMOULIN ,  Théo RYBARCZYK

IPC: G01N21/896 ,  G01N21/23 ,  G01N21/27 ,  C03B23/023 ,  C03B25/08 ,  C03B27/04 ,  C03B35/16

Abstract: An optical device comprises a first polariscope and a set of first photodetectors and an optical retardation generator. The device is configured to analyze the quality of a glazing.

公开(公告)号：US20240320818A1

公开(公告)日：2024-09-26

申请号：US18575674

申请日：2022-06-28

Applicant: SAINT-GOBAIN GLASS FRANCE

Inventor： Jean-Baptiste LAUDEREAU ,  Théo RYBARCZYK ,  Tatiana SEVERIN-FABIANI

IPC: G06T7/00 ,  G06T7/11 ,  G06T7/80

CPC classification number: G06T7/001 ,  G06T7/11 ,  G06T7/80 ,  G06T2207/10024 ,  G06T2207/20212 ,  G06T2207/30252

Abstract: A method of analyzing the optical quality of a region of a glazing, the region being intended to be placed in front of an acquisition or measurement device such as a camera based on apparent displacements of image points. There is also provided a method of calibrating a camera based on the analysis method and to a glazing thus analyzed.

公开(公告)号：US20220412897A1

公开(公告)日：2022-12-29

申请号：US17781232

申请日：2020-12-04

Applicant: SAINT-GOBAIN GLASS FRANCE

Inventor： Daouda Keita DIOP ,  Adrien CARLU ,  Théo RYBARCZYK

IPC: G01N21/958 ,  G01M11/02 ,  G01J9/02

Abstract: A method for measuring the optical quality of a given region of a glazing of a road or rail vehicle, the region being intended to be positioned in the optical path of an image-acquiring device, the measuring method being implemented by a measuring device including an emitter and a wavefront analyzer, the measuring method including emitting, with the emitter, a beam of light rays in the direction of the given region, analyzing, with the wavefront analyzer, the wavefront of the light rays transmitted by the given region, including generating a wavefront-error map, and determining, on the basis of the wavefront-error map, at least one optical-defect map, of any optical defects present in the region of the glazing.

公开(公告)号：US20220334068A1

公开(公告)日：2022-10-20

申请号：US17764393

申请日：2020-09-25

Applicant: SAINT-GOBAIN GLASS FRANCE

Inventor： Théo RYBARCZYK ,  Laurent REMEUR

IPC: G01N21/958 ,  G01N21/88

Abstract: A method for measuring the optical quality of a delineated region of a glazing, the delineated region being intended to be placed in front of an acquiring or measuring device such as a camera. The method is particularly suitable for measuring the optical quality of a delineated region of a transportation-vehicle glazing, such as an airplane or automobile windshield, in front of which an optical device for recording images or a device for measuring the environment outside the vehicle is placed with a view to enabling operation of an advanced driver-assistance system of the vehicle.

公开(公告)号：US20240420312A1

公开(公告)日：2024-12-19

申请号：US18703181

申请日：2022-10-20

Applicant: SAINT-GOBAIN GLASS FRANCE

Inventor： Théo RYBARCZYK ,  Laurent REMEUR

IPC: G06T7/00 ,  G01N21/958

Abstract: A computer implemented method for detecting optical defects within a glass windshield. The method takes as input a map of angular distances between primary and ghost images of a periodical pattern viewed through said glass windshield, an image of the periodical pattern viewed through said glass windshield, and at least one shape parameter of the individual features of the periodical pattern. The method provides as output an image of optical defects within the glass windshield.

公开(公告)号：US20240280509A1

公开(公告)日：2024-08-22

申请号：US18562456

申请日：2022-05-17

Applicant: SAINT-GOBAIN GLASS FRANCE

Inventor： Théo RYBARCZYK

IPC: G01N21/958 ,  G06T7/00 ,  G06T7/60

CPC classification number: G01N21/958 ,  G06T7/0004 ,  G06T7/60 ,  G01N2021/9586 ,  G01N2201/126

Abstract: A method for detecting optical defects within a windshield. The method takes, as input, a digital image map of the intensity of optical power of a windshield, and provides, as output, a digital image map of optical defects. The method includes (a) an image processing of the digital image map of optical powers for detecting and delimiting regions that differs in intensity of optical power; (b) computing, for each detected regions, a representative geometric distance and a representative value of the optical power; (c) computing an image map of the detected regions for which the product between the representative geometric distance and the representative value of the optical power is equal or superior to 2.9·10−4.

公开(公告)号：US20230377245A1

公开(公告)日：2023-11-23

申请号：US18248322

申请日：2021-09-28

Applicant: SAINT-GOBAIN GLASS FRANCE

Inventor： Jean-Baptiste LAUDEREAU ,  Théo RYBARCZYK ,  Tatiana SEVERIN-FABIANI ,  Marie-Christine DHEUR

IPC: G06T15/06 ,  G06V10/776 ,  G06V20/58 ,  G06T15/50 ,  G06T7/00

CPC classification number: G06T15/06 ,  G06V10/776 ,  G06V20/58 ,  G06T15/506 ,  G06T7/0002

Abstract: A method for simulating the effects of optical power of a windshield on the image recording quality of a digital image recording device, in particular of a digital image recording device from an advanced driver-assistance system. It is based on adapted stochastic ray tracing method to simulate the effects of the optical distortions of a windshield on the image recording quality of a digital image recording device from a measured optical quality function of the windshields related to these optical distortions and an image of a landscape likely to be recorded by a digital image recording device. It provides a simulated image of said image as viewed through said windshield taking into account its intrinsic optical particularities. The method can be used in a process for evaluating the optical quality of windshields for a use with a digital image recording device.