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1. 发明公开

EP3144898A1 METHOD AND SYSTEM FOR DETERMINATION OF INTRINSIC IMAGES FROM TWO DIMENSIONAL IMAGES IN A VIDEO SEQUENCE 审中-公开
标题翻译：方法和系统用于确定本征图像从二维图像视频序列
公开(公告)号：EP3144898A1
公开(公告)日：2017-03-22
申请号：EP15306454.8
申请日：2015-09-17
申请人： Thomson Licensing
发明人： ROBERT, Philippe , JIDDI, Salma , HUDON, Matis
IPC分类号： G06T15/50 , G06T7/00
CPC分类号： G06T15/506 , G06T7/0073 , G06T7/408 , G06T15/80 , G06T19/006 , G06T2207/10021 , G06T2207/10024 , G06T2207/10028 , G06T2215/16
摘要： A method and system for three dimensional presentation of two dimensional images in a video sequence having a plurality of frames is provided. In one embodiment, the method comprises identifying a plurality of points to be presented in three dimensional images and performing a color and depth sequence analysis for each of these points. A profile is then generated for each of the points based on the analysis. The profiles are classified as variable profiles or constant profiles and a surface reflectance is calculated for each of the points having a constant profile. The method also comprises modifying the two dimensional images to be presented as three dimensional images for points having a constant profile, wherein the images maintain uniform color and appearance between adjacent frames along said video sequence.
摘要翻译：提供了一种用于在具有帧的多个A视频序列二维图像的三维图象的方法和系统。在一个中，该方法实施例包括识别点上的多个在三维图像呈现，并且执行用于每个合成点的颜色和深度序列分析。甲轮廓然后为每个基于所述分析的点的产生。轮廓被分类为变量或常量的配置文件的配置文件和表面反射率计算每个具有恒定轮廓的点的。因此，该方法修改包括二维图像被呈现为三维图像为具有恒定轮廓，worin图像保持均匀的颜色，并沿所述视频序列的相邻帧之间的外观分。

2. 发明公开

EP3336801A1 METHOD AND APPARATUS FOR CONSTRUCTING LIGHTING ENVIRONMENT REPRESENTATIONS OF 3D SCENES 审中-公开
公开(公告)号：EP3336801A1
公开(公告)日：2018-06-20
申请号：EP16306721.8
申请日：2016-12-19
申请人： Thomson Licensing
发明人： ROBERT, Philippe , JIDDI, Salma , LAURENT, Anthony
IPC分类号： G06T7/00 , G06T15/50 , G06T7/507 , G06T7/514
CPC分类号： G06T15/506 , G06T7/00 , G06T7/507 , G06T7/514
摘要： A synthesis lighting environment representation of a 3D scene is constructed by:
- receiving (10) data representative of at least one first image of the 3D scene taken from at least one location outside the 3D scene;
- receiving (20) data representative at least one second image of the 3D scene taken from at least one filming position inside the 3D scene;
- merging (30) a first lighting environment representation derived from the data representative of the first image(s) and a second lighting environment representation derived from the data representative of the second image(s) into the synthesis lighting environment representation (Rep).

3. 发明授权

EP3144893B1 METHOD AND APPARATUS FOR ESTIMATING REFLECTANCE PARAMETERS AND A POSITION OF A LIGHT SOURCE IN A SCENE 有权
公开(公告)号：EP3144893B1
公开(公告)日：2018-06-06
申请号：EP16187378.1
申请日：2016-09-06
申请人： Thomson Licensing
发明人： ROBERT, Philippe , JIDDI, Salma , HUDON, Matis
IPC分类号： G06T7/70
CPC分类号： G01S3/783 , G01J1/44 , G01N21/4738 , G06T7/70 , G06T2207/10016 , G06T2207/10024 , G06T2207/10028
摘要： A method and apparatus for estimating reflectance parameters and a position of the light source(s) of specular reflections of a scene include RGB sequence analysis with measured geometry in order to estimate specular reflectance parameters of an observed 3D scene. Embodiments include pixel-based image registration from which profiles of 3D scene points image intensities over the sequence are estimated. Profiles are attached to a 3D point and to the set of pixels that display its intensity in the registered sequence. Subsequently, distinction is made between variable profiles that reveal specular effects and constant profiles that show diffuse reflections only. Then, for each variable profile diffuse reflectance is estimated and subtracted from the intensity profile to deduce the specular profile and the specular parameters are estimated for each observed 3D point. Then, the location of at least one light source responsible for the specular effects is estimated. Optionally, the parameters can be iteratively refined to determine color information and specular reflectance parameters.

4. 发明公开

EP3144893A1 METHOD AND APPARATUS FOR ESTIMATING REFLECTANCE PARAMETERS AND A POSITION OF A LIGHT SOURCE IN A SCENE 有权
标题翻译：方法和设备的反思场景中的估计和光源的位置参数
公开(公告)号：EP3144893A1
公开(公告)日：2017-03-22
申请号：EP16187378.1
申请日：2016-09-06
申请人： Thomson Licensing
发明人： ROBERT, Philippe , JIDDI, Salma , HUDON, Matis
IPC分类号： G06T7/00
CPC分类号： G01S3/783 , G01J1/44 , G01N21/4738 , G06T7/70 , G06T2207/10016 , G06T2207/10024 , G06T2207/10028
摘要： A method and apparatus for estimating reflectance parameters and a position of the light source(s) of specular reflections of a scene include RGB sequence analysis with measured geometry in order to estimate specular reflectance parameters of an observed 3D scene. Embodiments include pixel-based image registration from which profiles of 3D scene points image intensities over the sequence are estimated. Profiles are attached to a 3D point and to the set of pixels that display its intensity in the registered sequence. Subsequently, distinction is made between variable profiles that reveal specular effects and constant profiles that show diffuse reflections only. Then, for each variable profile diffuse reflectance is estimated and subtracted from the intensity profile to deduce the specular profile and the specular parameters are estimated for each observed 3D point. Then, the location of at least one light source responsible for the specular effects is estimated. Optionally, the parameters can be iteratively refined to determine color information and specular reflectance parameters.
摘要翻译：一种用于估计反射参数和场景的镜面反射的光源（一个或多个）的位置的方法和装置包括用以便估计所观察的3D场景的镜面反射率参数测量几何RGB序列分析。实施例包括从3D场景点的图像强度的哪个简档基于像素的图像配准在序列进行估计。配置文件是附接至一个3D点和所述像素组所做的注册序列中显示其强度。接着，区分可变轮廓之间作出确实揭示镜面效应和恒定轮廓确实只显示漫反射。然后，对于每个可变轮廓漫反射率被估计并从强度分布中减去，以推导出镜面反射和镜面轮廓参数估计针对每个观察3D点。然后，负责镜面效果中的至少一个光源的位置被估计。任选地，所述参数可以被迭代细化到确定性矿颜色信息和镜面反射率的参数。

5. 发明公开

EP3144891A1 METHOD AND APPARATUS FOR ESTIMATING REFLECTANCE PARAMETERS AND A POSITION OF A LIGHT SOURCE IN A SCENE 审中-公开
标题翻译：方法和设备的反思场景中的估计和光源的位置参数
公开(公告)号：EP3144891A1
公开(公告)日：2017-03-22
申请号：EP15306453.0
申请日：2015-09-17
申请人： Thomson Licensing
发明人： ROBERT, Philippe , JIDDI, Salma , HUDON, Matis
IPC分类号： G06T7/00
CPC分类号： G01S3/783 , G01J1/44 , G01N21/4738 , G06T7/70 , G06T2207/10016 , G06T2207/10024 , G06T2207/10028
摘要： A method and apparatus for estimating reflectance parameters and a position of the light source(s) of specular reflections of a scene include RGB sequence analysis with measured geometry in order to estimate specular reflectance parameters of an observed 3D scene. Profiles of 3D scene points' image intensities over the sequence are estimated. Subsequently, distinction is made between variable profiles that reveal specular effects and constant profiles that show diffuse reflections only. Then, for each variable profile diffuse reflectance is estimated and subtracted from the intensity profile to deduce the specular profile and the specular parameters are estimated for each observed 3D point. Then, the location of at least one light source responsible for the specular effects is estimated. Optionally, the parameters can be iteratively refined to determine color information and specular reflectance parameters.
摘要翻译：一种用于估计反射参数和场景的镜面反射的光源（一个或多个）的位置的方法和装置包括用以便估计所观察的3D场景的镜面反射率参数测量几何RGB序列分析。在序列3D场景点图像强度型材估计。接着，区分可变轮廓之间作出确实揭示镜面效应和恒定轮廓确实只显示漫反射。然后，对于每个可变轮廓漫反射率被估计并从强度分布中减去，以推导出镜面反射和镜面轮廓参数估计针对每个观察3D点。然后，负责镜面效果中的至少一个光源的位置被估计。任选地，所述参数可以被迭代细化到确定性矿颜色信息和镜面反射率的参数。

6. 发明公开

EP3352137A1 METHOD AND APPARATUS FOR PROCESSING A 3D SCENE 审中-公开
公开(公告)号：EP3352137A1
公开(公告)日：2018-07-25
申请号：EP17305074.1
申请日：2017-01-24
申请人： Thomson Licensing
发明人： ROBERT, Philippe , JIDDI, Salma , LAURENT, Anthony
IPC分类号： G06T15/60 , G06T19/00
CPC分类号： G06T19/006 , G06T15/06 , G06T15/20 , G06T15/506 , G06T15/60 , G06T19/20 , G06T2215/12 , G06T2215/16 , G06T2219/2012
摘要： A method for processing a 3D scene and a corresponding apparatus are disclosed. A 3D position of at least one point light source of the 3D scene is determined (10) from information representative of 3D geometry of the scene. Then, an occlusion attenuation coefficient assigned to said at least one point light source is calculated (11) from an occluded area and an unoccluded area, said occluded area and said unoccluded area only differing in that said at least one point light source is occluded by an object in said occluded area and said at least one point light source is not occluded in said unoccluded area,. Color intensity of at least one pixel of the 3D scene can thus be modified (12) using at least said occlusion attenuation coefficient.

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