公开(公告)号：US20170289531A1

公开(公告)日：2017-10-05

申请号：US15475061

申请日：2017-03-30

Applicant: THALES

Inventor： Philippe CONI ,  Aude GUEGUEN ,  Matthieu GROSSETETE

IPC: H04N13/04 ,  B64D43/00

Abstract: The general field of the invention is that of monochromatic stereoscopic image projectors including two light sources that illuminate two imagers, the radiation of the two light sources having a spectral distribution centred on a central wavelength, the first imager and the second imager being connected to a generator of stereoscopic image pairs. The image projector includes a dichroic separating filter that transmits the portion of the spectrum below the central wavelength and that reflects the portion of the spectrum above this central wavelength. The first light source and the second light source are arranged symmetrically on either side of the dichroic separating filter. The image projector operates cyclically, each cycle including two alternations. Each alternation consists in changing the emission source and in switching to the two displays the left and right images emitted by the generator of image pairs.

公开(公告)号：US20220335670A1

公开(公告)日：2022-10-20

申请号：US17718452

申请日：2022-04-12

Applicant: Thales

Inventor： Nicolas LEVASSEUR ,  Matthieu GROSSETETE ,  Sylvain LE HENAFF

IPC: G06T11/40 ,  G06T7/00 ,  B64D43/00

Abstract: The invention relates to a method and system for validating the graphical generation of symbols to display, comprising a graphical generation of symbols to display to form a video stream comprising a plurality of rasters, comprising a pixel generation, with the attribution of at least one associated symbol attribute for each pixel contributing to one of said symbols. The method comprises, for at least one raster of said video stream: obtaining at least one reference symbol attribute associated with at least one symbol to be monitored; identifying pixels having the reference symbol attribute(s), during a scan of the pixels of said raster in a predetermined course direction, these pixels contributing to said at least one symbol to be monitored, and calculating associated characteristic information; validating the display of the symbol(s) to be monitored based on the calculated characteristic information and of source information associated with said symbols to display.

公开(公告)号：US20160124234A1

公开(公告)日：2016-05-05

申请号：US14927422

申请日：2015-10-29

Applicant: THALES

Inventor： Philippe CONI ,  Matthieu GROSSETETE ,  Aude GUEGUEN

IPC: G02B27/22 ,  G03B35/26 ,  G02B27/01 ,  H04N13/04 ,  G02B26/00

CPC classification number: G02B27/2207 ,  G02B5/28 ,  G02B26/001 ,  G02B26/007 ,  G02B27/0101 ,  G02B27/0179 ,  G02B27/2264 ,  G02B2027/0112 ,  G02B2027/0114 ,  G02B2027/0134 ,  G02B2027/014 ,  G02B2027/0187 ,  G03B35/26 ,  H04N13/334 ,  H04N13/363 ,  H04N13/366

Abstract: Visual display systems are described having means for generating stereoscopic images, a device for visual display of said stereoscopic images having a projector and a semitransparent screen; and a pair of stereoscopic spectacles. The projector according to the invention has an imager and an interference filter, the spectral transmission of which has at least one transmission band of determined width centred around a wavelength, said wavelength being dependent on the incidence of the light on said interference filter. The projector has means allowing the angular position of the filter to be varied between two determined positions so as to transmit, according to the position, either a first spectral band or a second spectral band. The pair of stereoscopic spectacles has a first lens transmitting the first spectral band and blocking the second spectral band and a second lens providing the opposite function.

Abstract translation: 具有生成立体图像的装置的视觉显示系统被描述，具有投影仪和半透明屏幕的所述立体图像的视觉显示装置; 和一副立体眼镜。 根据本发明的投影仪具有成像器和干涉滤光器，其光谱传输具有以波长为中心的确定宽度的至少一个透射带，所述波长取决于所述干涉滤光器上的光的入射。 投影仪具有允许滤光器的角位置在两个确定位置之间变化的装置，以便根据该位置传输第一光谱带或第二光谱带。 一对立体眼镜具有透射第一光谱带并阻挡第二光谱带的第一透镜和提供相反功能的第二透镜。

公开(公告)号：US20150160546A1

公开(公告)日：2015-06-11

申请号：US14567718

申请日：2014-12-11

Applicant: THALES

Inventor： Sebastien PELLETIER ,  Aude GUEGUEN ,  Matthieu GROSSETETE ,  Jean-Luc BARDON ,  Laurent LALUQUE

IPC: G03B21/60

CPC classification number: G03B21/60 ,  G02B5/18 ,  G02B27/0101 ,  G02B27/0172 ,  G02B2027/0123

Abstract: The general field of the invention is that of display systems comprising an image projector and an associated display screen, the said display system being designed to be used by an observer situated at a given location, the said display screen comprising two transparent and substantially parallel faces, the said display screen comprising, on at least one of its transparent faces, a plurality of regularly distributed light-scattering patterns. The image projector according to the invention illuminating the screen under a plurality of angles of incidence determined by the position and the size of the display screen, the said angles of incidence being centred on a mean angle of incidence, the scattering patterns comprise a diffractive structure in order to diffract the light rays having at least the mean angle of incidence in one or more directions corresponding to the said given location of the observer.

Abstract translation: 本发明的一般领域是包括图像投影仪和相关联的显示屏幕的显示系统的所述显示系统，所述显示系统被设计为由位于给定位置的观察者使用，所述显示屏幕包括两个透明且基本平行的面 所述显示屏在其至少一个透明面上包括多个规则分布的光散射图案。 根据本发明的图像投影仪以由显示屏幕的位置和尺寸确定的多个入射角照亮屏幕，所述入射角以入射角为中心，散射图案包括衍射结构 以便在对应于观察者的所述给定位置的一个或多个方向衍射具有至少平均入射角的光线。

公开(公告)号：US20230196931A1

公开(公告)日：2023-06-22

申请号：US18084287

申请日：2022-12-19

Applicant: THALES

Inventor： Olivier LEMOINE ,  Nicolas LEPRON ,  Matthieu GROSSETETE

IPC: G08G5/02 ,  G08G5/00

CPC classification number: G08G5/025 ,  G08G5/0021 ,  G08G5/0086 ,  G08G5/0091

Abstract: Disclosed is a method for identifying a landing zone and for displaying on a head-up display system onboard an aircraft, a symbol conforming to the landing zone, the aircraft being apt to fly over a terrain and to land on the landing zone of the terrain. The aircraft is a helicopter, a drone or an electric aircraft with vertical take-off and landing. The method includes at least the following steps:—a hovering phase of the aircraft over the landing zone and acquisition of the geographical position of the landing zone;—a flight of the aircraft towards the landing zone and display on the head-up display system, of a symbol conforming to the landing zone at the measured geographic position.

公开(公告)号：US20150169986A1

公开(公告)日：2015-06-18

申请号：US14576128

申请日：2014-12-18

Applicant: THALES

Inventor： Matthieu GROSSETETE

IPC: G06K9/52 ,  G06K9/46 ,  G06T5/00

CPC classification number: G06K9/52 ,  G06K9/4661 ,  G06T5/00 ,  G06T5/008 ,  G06T2207/20012 ,  G06T2207/20208 ,  G06T2207/30212

Abstract: The general field of the invention is that of the methods of processing an initial digital image IIN(p) made up of pixels (p). The method according to the invention comprises the following successive steps:Step 1: calculating the logarithm of the initial image in order to obtain a first intermediate image Log(IIN(p));Step 2: filtering said first intermediate image using a low-frequency filter in order to obtain a second intermediate image BF(p);Step 3: determining the value of the minimum intensity and the value of the maximum intensity in the low-frequency image;Step 4: calculating a third intermediate image Log(IOUT(p)) using the following linear combination: Log(IOUT(p))=[Log(IIN(p)−BF(p)].[K1.BF(p)+K2]+K3.BF(p)+K4 K1, K2, K3 and K4 being constants;Step 5: calculating the final image IOUT(p) by applying the exponential function to the third intermediate image.

Abstract translation: 本发明的一般领域是处理由像素（p）构成的初始数字图像IIN（p）的方法。 根据本发明的方法包括以下连续步骤：步骤1：计算初始图像的对数，以获得第一中间图像Log（IIN（p））; 步骤2：使用低频滤波器对所述第一中间图像进行滤波，以获得第二中间图像BF（p）; 步骤3：确定低频图像中最小强度值和最大强度值; 步骤4：使用以下线性组合计算第三中间图像Log（IOUT（p））：Log（IOUT（p））= [Log（IIN（p）-BF（p）]。[K1.BF（p） + K2] + K3.BF（p）+ K4 K1，K2，K3和K4为常数;步骤5：通过将指数函数应用于第三中间图像来计算最终图像IOUT（p）。