公开(公告)号：US20170374345A1

公开(公告)日：2017-12-28

申请号：US15631009

申请日：2017-06-23

申请人： THOMSON LICENSING

发明人： Jurgen STAUDER ,  Benoit VANDAME ,  Cedric THEBAULT

IPC分类号： H04N13/00 ,  G06T7/80 ,  G06T15/20 ,  H04N13/02 ,  G06T3/40 ,  G06T15/06

CPC分类号： H04N13/128 ,  G06T3/4015 ,  G06T7/85 ,  G06T15/06 ,  G06T15/205 ,  G06T2207/10052 ,  G06T2207/20228 ,  G06T2207/30244 ,  G06T2215/16 ,  H04N5/2254 ,  H04N5/2258 ,  H04N13/178 ,  H04N13/243 ,  H04N13/246 ,  H04N13/282

摘要： A method for creating a pair of stereoscopic images is described. The method includes using at least one lightfield camera which receives respective required camera parameters for a left view and a right view. The required camera parameters define a theoretical stereo image pair to acquire respective actual camera parameters for respective sub aperture images that are generated based on the captured image by the lightfield cameras, to determine a best matching sub aperture image for the left view by comparing the required camera parameter for the left view with the actual camera parameters for the respective sub aperture images, to determine a best matching sub aperture image for right view by comparing the required camera parameter for right view with the actual camera parameters for the respective sub aperture images, and to associate the best matching sub aperture image for left view and the best matching sub aperture image for right view as a pair of stereoscopic images.

公开(公告)号：US20180047185A1

公开(公告)日：2018-02-15

申请号：US15555486

申请日：2016-02-26

申请人： THOMSON Licensing

发明人： Guillaume BOISSON ,  Mozhdeh SEIFI ,  Benoit VANDAME ,  Neus SABATER

IPC分类号： G06T7/80 ,  H04N13/00 ,  H04N13/02 ,  G06T7/557

CPC分类号： G06T7/85 ,  G06T7/557 ,  G06T2207/10024 ,  G06T2207/10028 ,  G06T2207/10052 ,  H04N5/23212 ,  H04N5/23229 ,  H04N13/111 ,  H04N13/178 ,  H04N13/218 ,  H04N13/229 ,  H04N13/232 ,  H04N13/282

摘要： A method of providing metadata for captured light field data, the method comprising providing a data format aggregating metadata describing characteristics of at least one of: a light field camera used to capture the light field data, a matrix of views derived from the light field data, and a focal stack derived from the light field data.

公开(公告)号：US20170004363A1

公开(公告)日：2017-01-05

申请号：US15197927

申请日：2016-06-30

申请人： THOMSON LICENSING

发明人： Renaud DORE ,  Franck GALPIN ,  Benoit VANDAME

IPC分类号： G06K9/00 ,  H04N5/33 ,  G02B27/01

CPC分类号： G06K9/00604 ,  A61B3/113 ,  G02B5/30 ,  G02B27/0093 ,  G02B27/017 ,  G02B27/0172 ,  G02B27/0176 ,  G02B2027/0138 ,  G02B2027/0187 ,  G06F3/013 ,  H04N5/33

摘要： The present disclosure generally relates to a gaze tracking device. Gaze tracking is a process of measuring either the point of regard or the motion of an eye relatively to the head of a person. A gaze tracking device is a device capable of measuring eye positions and eye movement. In order to track the gaze of a person, infra-red light is projected into the user's eye. Utilizing the primary Purkinje reflection and the pupil-masked reflection, the position of the eye of the user is determined. The gaze tracking devices running such a tracking method offer a limited field of view due to the illumination scheme combined with the geometry of the reflected images. It is proposed a gaze tracking device embedding a light-field camera. Such a gaze tracking device may be embedded in a head mounted device.

摘要翻译： 本公开一般涉及注视追踪装置。 凝视跟踪是一种相对于人的头部测量眼睛的观察点或眼睛的运动的过程。 注视跟踪装置是能够测量眼睛位置和眼睛运动的装置。 为了跟踪一个人的目光，红外线被投射到用户的眼睛里。 利用原始的浦肯野反射和瞳孔掩蔽的反射，确定使用者眼睛的位置。 运行这种跟踪方法的注视跟踪装置由于与反射图像的几何结构相结合的照明方案而提供有限的视场。 提出了一种嵌入光场摄像机的注视追踪装置。 这种注视跟踪装置可以嵌入在头戴装置中。

公开(公告)号：US20160360182A1

公开(公告)日：2016-12-08

申请号：US15176119

申请日：2016-06-07

申请人： THOMSON LICENSING

发明人： Mozhdeh SEIFI ,  Benoit VANDAME ,  Valter DRAZIC

IPC分类号： H04N13/02

CPC分类号： H04N13/229 ,  H04N5/217 ,  H04N5/2254 ,  H04N5/3572 ,  H04N13/232 ,  H04N19/597 ,  H04N2013/0081

摘要： A light-field capture device including a photo-sensor, a main lens configured to refract light from a scene towards an image focal field, a micro-lens array positioned in the image focal field between the main lens and the photo-sensor, each micro-lens being configured to project a micro-lens image onto a respective dedicated area of the photo-sensor. The light-field capture device is provided with at least one compressive sensing calculation unit connected to at least one of the dedicated areas and configured to calculate data such as for example standard deviation data representative of the homogeneity of input pixels of said dedicated area, and to provide output data representative of the input pixels of said dedicated area; the output data comprising either a number of output pixels corresponding to the number of input pixels, or a single output pixel, depending on the relative value of the homoegeneity compared with a threshold.

摘要翻译： 一种光场捕获装置，包括光传感器，被配置为将来自场景的光朝向图像焦点折射的主透镜，位于主透镜和光传感器之间的图像焦点中的微透镜阵列，每个 微透镜被配置为将微透镜图像投影到光传感器的相应专用区域上。 所述光场捕获装置设置有至少一个压缩感测计算单元，连接到所述专用区域中的至少一个，并被配置为计算数据，例如表示所述专用区域的输入像素的均匀性的标准偏差数据，以及 以提供表示所述专用区域的输入像素的输出数据; 输出数据包括与输入像素数量相对应的输出像素的数量，或者单个输出像素，这取决于与阈值相比的同源性的相对值。

公开(公告)号：US20180249178A1

公开(公告)日：2018-08-30

申请号：US15757417

申请日：2016-09-05

申请人： THOMSON Licensing

发明人： Philippe GUILLOTEL ,  Dominique THOREAU ,  Benoit VANDAME ,  Patrick LOPEZ ,  Guillaume BOISSON

IPC分类号： H04N19/597 ,  H04N13/161 ,  H04N19/105 ,  H04N19/162 ,  H04N19/172 ,  H04N13/117

CPC分类号： H04N19/597 ,  H04N13/117 ,  H04N13/161 ,  H04N19/105 ,  H04N19/162 ,  H04N19/172

摘要： A method for encoding a current focal stack is disclosed that comprises a set of images focused at a different focalization distance from one image to another. According to present disclosure, the method comprises: —encoding (31) information representing an image of the current focal stack, the image being selected in said current focal stack according to an image sharpness criterion, and reconstructing the image into a reconstructed image; —encoding (32) at least another image of the current focal stack by prediction from at least the reconstructed image.

公开(公告)号：US20160353026A1

公开(公告)日：2016-12-01

申请号：US15167921

申请日：2016-05-27

申请人： THOMSON LICENSING

发明人： Laurent BLONDE ,  Benoit VANDAME ,  Paul KERBIRIOU

IPC分类号： H04N5/232 ,  G06T7/00

CPC分类号： H04N5/23258 ,  G06T7/0002 ,  H04N1/00458 ,  H04N5/225 ,  H04N5/23212 ,  H04N5/23229 ,  H04N5/23293

摘要： A method for displaying at least one light field based image on a user's device is disclosed. Such a method comprises displaying the image focused according to at least one focusing parameter determined as a function of a pose of the user's device. A sensor embedded in the users' device, which may be a handheld device, may estimate the pose.

摘要翻译： 公开了一种在用户设备上显示至少一个基于光场的图像的方法。 这种方法包括根据用户设备的姿势确定的至少一个聚焦参数来显示聚焦的图像。 嵌入在用户设备中的可以是手持设备的传感器可以估计姿势。

公开(公告)号：US20160323557A1

公开(公告)日：2016-11-03

申请号：US15143549

申请日：2016-04-30

申请人： THOMSON LICENSING

发明人： Valter DRAZIC ,  Benoit VANDAME ,  Arno SCHUBERT

IPC分类号： H04N13/02 ,  G06K9/00 ,  H04N5/235 ,  H04N5/232 ,  G06K9/46

CPC分类号： H04N13/236 ,  G06K9/00671 ,  G06K9/4671 ,  H04N5/23212 ,  H04N5/23216 ,  H04N5/23222 ,  H04N5/23293 ,  H04N5/2355 ,  H04N5/2356 ,  H04N13/221

摘要： A method for obtaining light field data of a scene from a sequence of images of the scene, each image being captured at a different viewpoint using a non-light-field image capture device is described. The method includes obtaining a reference image of the scene at a reference viewpoint, an interest area of the scene being included in the reference image and a reference position (x0,y0) being associated with the interest area in a reference local coordinate system of the capture device. For a current image of the scene at a current viewpoint, the method identifies the interest area of the scene in the current image, determines, in the reference local coordinate system, a current position (xc,yc) of the interest area identified in the current image, compares the current position with the reference position and provides a capture guidance indicator adapted to guide in relative positioning of the capture device towards the interest area, as a function of results of the comparison between the current position and the reference position.

摘要翻译： 描述了从场景的图像序列获得场景的光场数据的方法，使用非光场图像捕获装置在不同的视点捕获每个图像。 该方法包括：在参考视点获取场景的参考图像，将场景的兴趣区域包括在参考图像中;以及参考位置（x0，y0）与参考位置坐标系中的兴趣区域相关联 捕获设备。 对于当前视点的场景的当前图像，该方法识别当前图像中的场景的兴趣区域，在参考局部坐标系中确定在该图像中标识的兴趣区域的当前位置（xc，yc） 当前图像将当前位置与参考位置进行比较，并且提供捕捉指导指示符，其适于根据当前位置和参考位置之间的比较结果来引导捕获装置朝向感兴趣区域的相对定位。

公开(公告)号：US20190124360A1

公开(公告)日：2019-04-25

申请号：US16024529

申请日：2018-06-29

申请人： THOMSON Licensing

发明人： Benoit VANDAME ,  Fabien RACAPE ,  Paul KERBIRIOU

IPC分类号： H04N19/597 ,  H04N5/30 ,  H04N19/176 ,  H04N19/136

摘要： A method for encoding at least one matrix of image views obtained from data acquired by a plenoptic camera is disclosed. Image views of the matrix of image views are partitioned into blocks. For a given image view of the at least one matrix of views, the method includes obtaining at least one block to be encoded and a matching block, wherein a difference between the at least one block to be encoded and the matching block fulfills a block matching criterion; determining a residual block regarding the at least one block to be encoded and the matching block, the determining using modified pixels of the at least one block to be encoded and modified pixels of the matching block according to flux variation parameters associated with a pixel sensor of the plenoptic camera; and encoding the residual block.

公开(公告)号：US20190110028A1

公开(公告)日：2019-04-11

申请号：US16087212

申请日：2017-03-20

申请人： THOMSON LICENSING

发明人： Thierry BOREL ,  Benoit VANDAME ,  Amo SCHUBERT

IPC分类号： H04N9/04 ,  H04N5/357 ,  H04N13/271 ,  H04N13/232

摘要： The invention pertains to a method for correcting aberration affecting light-field data (LF) acquired by a sensor of a plenoptic device, said method comprising: determining (S2) a plurality of subsets of light-field data (Sub_LF) among said light-field data (LF), as a function of a physical and/or geometrical property of said light-field data, said property being a discrimination criterion associated with said aberration, projecting (S3) at least some of said subsets of light field data (Sub_LF) into respective refocused sub-pictures (Sub_Pict), as a function of: ∘spatial information about a focalization plane and, ∘a respective disparity dispersion (D(W)) resulting from said aberration, obtaining a corrected picture (Cor_Pict) from a sum (S4) of said refocused sub-pictures (Sub_Pict).

公开(公告)号：US20180144492A1

公开(公告)日：2018-05-24

申请号：US15569737

申请日：2016-04-21

申请人： THOMSON Licensing

发明人： Benoit VANDAME ,  Neus SABATER ,  Olivier BURELLER

IPC分类号： G06T7/557 ,  G03B35/10 ,  H01L27/146 ,  H04N13/00 ,  H04N5/225 ,  H04N5/232

摘要： An apparatus to process a lightfield image of a scene acquired with a lightfield acquisition device comprises means for obtaining a first focal stack and a second focal stack, each comprising images representative of the scene and obtained from a different part of the pixels of the lightfield image. A method of processing the lightfield content is also described.