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1.发明申请ILLUMINATION SPHERE WITH INTELLIGENT LED LIGHTING UNITS IN SCALABLE DAISY CHAIN WITH INTERCHANGEABLE FILTERS 有权具有可互换过滤器的可扩展奶瓶中的智能LED照明灯具的照明球公开(公告)号：US20120050606A1
公开(公告)日：2012-03-01
申请号：US12872433
申请日：2010-08-31
申请人： Paul E. Debevec , Xueming Yu , Mark Bolas , Graham Fyffe , Jay Busch , Pieter Peers , Abhijeet Ghosh
发明人： Paul E. Debevec , Xueming Yu , Mark Bolas , Graham Fyffe , Jay Busch , Pieter Peers , Abhijeet Ghosh
CPC分类号： H05B37/0254 , G03B15/07 , G03B2215/0557 , H04N5/2256 , H04N5/247 , H05B33/0842 , H05B33/0872 , H05B37/0218 , Y02B20/46 , Y02B20/48
摘要： A controllable lighting system may include a plurality of light source groups, a group controller for each light source group, a master controller, and a network communication system. Each group controller may be configured to control the light sources in its light source group based on a group control command. The master controller may be configured to receive a master control command relating to the light sources and to issue a group control command to each of the group controllers that collectively effectuate compliance with the master control command. The network communication system may be configured to communicate the group control commands from the master controller to the group controllers.
摘要翻译： 可控照明系统可以包括多个光源组，每个光源组的组控制器，主控制器和网络通信系统。 每个组控制器可以被配置为基于组控制命令来控制其光源组中的光源。 主控制器可以被配置为接收与光源相关的主控制命令，并且向组控制器发出组控制命令，这些组控制器共同地实现与主控制命令的一致性。 网络通信系统可以被配置为将组控制命令从主控制器传送到组控制器。
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2.发明授权公开(公告)号：US08300234B2
公开(公告)日：2012-10-30
申请号：US12803398
申请日：2010-06-24
申请人： Paul E. Debevec , Abhijeet Ghosh , Pieter Peers , Graham Fyffe
发明人： Paul E. Debevec , Abhijeet Ghosh , Pieter Peers , Graham Fyffe
IPC分类号： G01B11/30
CPC分类号： G01N21/55 , G01N2021/556
摘要： A system for estimating the specular roughness of points on a surface of an object may include a lighting system, an image capture system and a computer processing system. The lighting system may be configured to illuminate the surface of the object at different times with different illumination patterns. Each illumination pattern may illuminate the surface from a plurality of different directions and form an intensity gradient having an order of no more than two. The image capture system may be configured to capture an image of the surface of the object when illuminated by each of the different illumination patterns at each of the different times. The computer processing system may be configured to compute the specular roughness of each point on the surface of the object based on the images captured by the image capture system.
摘要翻译： 用于估计物体表面上的点的镜面粗糙度的系统可以包括照明系统，图像捕获系统和计算机处理系统。 照明系统可以被配置为在不同的照明图案的不同时间照亮物体的表面。 每个照明图案可以从多个不同的方向照亮表面，并形成具有不超过两个数量级的强度梯度。 图像拍摄系统可以被配置为当在不同时间的每一个时由每个不同的照明图案照亮时捕获对象的表面的图像。 计算机处理系统可以被配置为基于由图像捕获系统捕获的图像来计算物体表面上的每个点的镜面粗糙度。
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3.发明申请公开(公告)号：US20100328677A1
公开(公告)日：2010-12-30
申请号：US12803398
申请日：2010-06-24
申请人： Paul E. Debevec , Abhijeet Ghosh , Pieter Peers , Graham Fyffe
发明人： Paul E. Debevec , Abhijeet Ghosh , Pieter Peers , Graham Fyffe
IPC分类号： G01B11/30
CPC分类号： G01N21/55 , G01N2021/556
摘要： A system for estimating the specular roughness of points on a surface of an object may include a lighting system, an image capture system and a computer processing system. The lighting system may be configured to illuminate the surface of the object at different times with different illumination patterns. Each illumination pattern may illuminate the surface from a plurality of different directions and form an intensity gradient having an order of no more than two. The image capture system may be configured to capture an image of the surface of the object when illuminated by each of the different illumination patterns at each of the different times. The computer processing system may be configured to compute the specular roughness of each point on the surface of the object based on the images captured by the image capture system.
摘要翻译： 用于估计物体表面上的点的镜面粗糙度的系统可以包括照明系统，图像捕获系统和计算机处理系统。 照明系统可以被配置为在不同的照明图案的不同时间照亮物体的表面。 每个照明图案可以从多个不同的方向照亮表面，并形成具有不超过两个数量级的强度梯度。 图像拍摄系统可以被配置为当在不同时间的每一个时由每个不同的照明图案照亮时捕获对象的表面的图像。 计算机处理系统可以被配置为基于由图像捕获系统捕获的图像来计算物体表面上的每个点的镜面粗糙度。
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4.发明授权公开(公告)号：US09123116B2
公开(公告)日：2015-09-01
申请号：US13449729
申请日：2012-04-18
申请人： Paul E. Debevec , Abhijeet Ghosh , Graham Fyffe
发明人： Paul E. Debevec , Abhijeet Ghosh , Graham Fyffe
CPC分类号： G06T7/0073 , G06K9/00255 , G06K9/2036 , G06T7/586 , G06T2207/10016 , G06T2207/10152 , G06T2207/30201 , H04N13/254 , H04N13/282
摘要： A multiview face capture system may acquire detailed facial geometry with high resolution diffuse and specular photometric information from multiple viewpoints. A lighting system may illuminate a face with polarized light from multiple directions. The light may be polarized substantially parallel to a reference axis during a parallel polarization mode of operation and substantially perpendicular to the reference axis during a perpendicular polarization mode of operation. Multiple cameras may each capture an image of the face along a materially different optical axis and have a linear polarizer configured to polarize light traveling along its optical axis in a direction that is substantially parallel to the reference axis. A controller may cause each of the cameras to capture an image of the face while the lighting system is in the parallel polarization mode of operation and again while the lighting system is in the perpendicular polarization mode of operation.
摘要翻译： 多视角人脸捕获系统可以从多个视点获取具有高分辨率漫反射光度信息的详细面部几何。 照明系统可以用来自多个方向的偏振光照亮面部。 在平行极化操作模式期间，光可以基本平行于参考轴线极化，并且在垂直偏振操作模式期间基本垂直于基准轴线。 多个摄像机可以各自沿着物理上不同的光轴捕获面部的图像，并且具有线性偏振器，其被配置为使沿着其光轴沿基本上平行于参考轴线的方向偏振光。 控制器可以使得每个照相机在照明系统处于并行极化操作模式的同时再次照明系统处于垂直极化操作模式时捕获脸部的图像。
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5.发明授权公开(公告)号：US09562857B2
公开(公告)日：2017-02-07
申请号：US14212751
申请日：2014-03-14
摘要： An apparatus to measure surface orientation maps of an object may include a light source that is configured to illuminate the object with a controllable field of illumination. One or more cameras may be configured to capture at least one image of the object. A processor may be configured to process the image(s) to extract the reflectance properties of the object including an albedo, a reflection vector, a roughness, and/or anisotropy parameters of a specular reflectance lobe associated with the object. The controllable field of illumination may include limited-order Spherical Harmonics (SH) and Fourier Series (FS) illumination patterns with substantially similar polarization. The SH and FS illumination patterns are used with different light sources.
摘要翻译： 用于测量物体的表面取向图的装置可以包括配置成用可控制的照明场照射物体的光源。 一个或多个摄像机可以被配置为捕获对象的至少一个图像。 处理器可以被配置为处理图像以提取对象的反射特性，包括与对象相关联的镜面反射率波瓣的反照率，反射矢量，粗糙度和/或各向异性参数。 可控的照明领域可以包括具有基本相似极化的有限次球面谐波（SH）和傅里叶级数（FS）照明图案。 SH和FS照明图案与不同的光源一起使用。
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6.发明申请公开(公告)号：US20140268160A1
公开(公告)日：2014-09-18
申请号：US14212751
申请日：2014-03-14
摘要： An apparatus to measure surface orientation maps of an object may include a light source that is configured to illuminate the object with a controllable field of illumination. One or more cameras may be configured to capture at least one image of the object. A processor may be configured to process the image(s) to extract the reflectance properties of the object including an albedo, a reflection vector, a roughness, and/or anisotropy parameters of a specular reflectance lobe associated with the object. The controllable field of illumination may include limited-order Spherical Harmonics (SH) and Fourier Series (FS) illumination patterns with substantially similar polarization. The SH and FS illumination patterns are used with different light sources.
摘要翻译： 用于测量物体的表面取向图的装置可以包括配置成用可控制的照明场照射物体的光源。 一个或多个摄像机可以被配置为捕获对象的至少一个图像。 处理器可以被配置为处理图像以提取对象的反射特性，包括与对象相关联的镜面反射率波瓣的反照率，反射矢量，粗糙度和/或各向异性参数。 可控的照明领域可以包括具有基本相似极化的有限次球面谐波（SH）和傅里叶级数（FS）照明图案。 SH和FS照明图案与不同的光源一起使用。
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公开(公告)号：US08264490B2
公开(公告)日：2012-09-11
申请号：US12364370
申请日：2009-02-02
申请人： Paul E. Debevec , Abhijeet Ghosh
发明人： Paul E. Debevec , Abhijeet Ghosh
IPC分类号： G06T15/00
CPC分类号： G06T15/50 , G06K9/00221
摘要： Techniques are described for modeling layered facial reflectance consisting of specular reflectance, single scattering, and shallow and deep subsurface scattering. Parameters of appropriate reflectance models can be estimated for each of these layers, e.g., from just 20 photographs recorded in a few seconds from a single view-point. Spatially-varying specular reflectance and single-scattering parameters can be extracted from polarization-difference images under spherical and point source illumination. Direct-indirect separation can be employed to decompose the remaining multiple scattering observed under cross-polarization into shallow and deep scattering components to model the light transport through multiple layers of skin. Appropriate diffusion models can be matched to the extracted shallow and deep scattering components for different regions on the face. The techniques were validated by comparing renderings of subjects to reference photographs recorded from novel viewpoints and under novel illumination conditions. Related geometry acquisition systems and software products are also described.
摘要翻译： 描述了用于对由镜面反射率，单散射和浅层和深层次表面散射组成的分层面部反射的建模技术。 可以针对这些层中的每一层来估计适当的反射率模型的参数，例如，从单个视点在几秒钟内记录的仅20个照片。 可以从球面和点光源照明下的极化差分图像中提取空间变化的镜面反射率和单散射参数。 可以使用直接间接分离来将交叉偏振下观察到的剩余多重散射分解为浅层和深度散射分量，以模拟通过多层皮肤的光传输。 适当的扩散模型可以与提取的浅层和深度散射分量匹配，以适应不同区域的面部。 通过将受试者的效果与从新观点和新颖照明条件下记录的参考照片进行比较来验证这些技术。 还描述了相关几何采集系统和软件产品。
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公开(公告)号：US20090226049A1
公开(公告)日：2009-09-10
申请号：US12364370
申请日：2009-02-02
申请人： Paul E. Debevec , Abhijeet Ghosh
发明人： Paul E. Debevec , Abhijeet Ghosh
IPC分类号： G06K9/00
CPC分类号： G06T15/50 , G06K9/00221
摘要： Techniques are described for modeling layered facial reflectance consisting of specular reflectance, single scattering, and shallow and deep subsurface scattering. Parameters of appropriate reflectance models can be estimated for each of these layers, e.g., from just 20 photographs recorded in a few seconds from a single view-point. Spatially-varying specular reflectance and single-scattering parameters can be extracted from polarization-difference images under spherical and point source illumination. Direct-indirect separation can be employed to decompose the remaining multiple scattering observed under cross-polarization into shallow and deep scattering components to model the light transport through multiple layers of skin. Appropriate diffusion models can be matched to the extracted shallow and deep scattering components for different regions on the face. The techniques were validated by comparing renderings of subjects to reference photographs recorded from novel viewpoints and under novel illumination conditions. Related geometry acquisition systems and software products are also described.
摘要翻译： 描述了用于对由镜面反射率，单散射和浅层和深层次表面散射组成的分层面部反射的建模技术。 可以针对这些层中的每一层来估计适当的反射率模型的参数，例如，从单个视点在几秒钟内记录的仅20个照片。 可以从球面和点光源照明下的极化差分图像中提取空间变化的镜面反射率和单散射参数。 可以使用直接间接分离来将交叉偏振下观察到的剩余多重散射分解为浅层和深度散射分量，以模拟通过多层皮肤的光传输。 适当的扩散模型可以与提取的浅层和深度散射分量匹配，以适应不同区域的面部。 通过将受试者的效果与从新观点和新颖照明条件下记录的参考照片进行比较来验证这些技术。 还描述了相关几何采集系统和软件产品。
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公开(公告)号：US20140327748A1
公开(公告)日：2014-11-06
申请号：US13850229
申请日：2013-03-25
申请人： Paul E. Debevec , Andrew Jones , Mark Bolas , Ian McDowall
发明人： Paul E. Debevec , Andrew Jones , Mark Bolas , Ian McDowall
IPC分类号： H04N13/04
CPC分类号： H04N13/302 , G02B27/225 , H04N13/30 , H04N13/305 , H04N13/324 , H04N13/354 , H04N13/363 , H04N13/366 , H04N13/368 , H04N13/373 , H04N13/376 , H04N13/38
摘要： An interactive, autostereoscopic system for displaying an object in 3D includes a mirror configured to spin around a vertical axis when actuated by a motor, a high speed video projector, and a processing system including a graphics card interfaced to the video projector. An anisotropic reflector is bonded onto an inclined surface of the mirror. The video projector projects video signals of the object from the projector onto the inclined surface of the mirror while the mirror is spinning, so that light rays representing the video signals are redirected toward a field of view of a 360 degree range. The processing system renders the redirected light rays so as to interactively generate a horizontal-parallax 3D display of the object. Vertical parallax can be included in the display by adjusting vertically the displayed views of the object, in response to tracking of viewer motion by a tracking system.
摘要翻译： 用于以3D显示对象的交互式自动立体系统包括：镜子，被构造成当由电动机，高速视频投影仪以及包括与视频投影仪接口连接的显卡的处理系统启动时绕垂直轴旋转。 各向异性反射器粘合在反射镜的倾斜表面上。 视频投影机在镜子旋转时将投影仪的物体的视频信号投影到镜子的倾斜表面上，使得表示视频信号的光线被朝向360度范围的视野被重定向。 处理系统呈现重定向的光线，以交互地产生对象的水平视差3D显示。 响应于跟踪系统跟踪观看者运动，垂直视差可以包括在显示器中，以垂直地调整对象的显示视图。
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公开(公告)号：US08432436B2
公开(公告)日：2013-04-30
申请号：US12105120
申请日：2008-04-17
申请人： Paul E. Debevec , Andrew Jones , Mark Bolas , Ian McDowall
发明人： Paul E. Debevec , Andrew Jones , Mark Bolas , Ian McDowall
IPC分类号： H04N13/04
CPC分类号： H04N13/302 , G02B27/225 , H04N13/30 , H04N13/305 , H04N13/324 , H04N13/354 , H04N13/363 , H04N13/366 , H04N13/368 , H04N13/373 , H04N13/376 , H04N13/38
摘要： An interactive, autostereoscopic system for displaying an object in 3D includes a mirror configured to spin around a vertical axis when actuated by a motor, a high speed video projector, and a processing system including a graphics card interfaced to the video projector. An anisotropic reflector is bonded onto an inclined surface of the mirror. The video projector projects video signals of the object from the projector onto the inclined surface of the mirror while the mirror is spinning, so that light rays representing the video signals are redirected toward a field of view of a 360 degree range. The processing system renders the redirected light rays so as to interactively generate a horizontal-parallax 3D display of the object. Vertical parallax can be included in the display by adjusting vertically the displayed views of the object, in response to tracking of viewer motion by a tracking system.
摘要翻译： 用于以3D显示对象的交互式自动立体系统包括：镜子，被构造成当由电动机，高速视频投影仪以及包括与视频投影仪接口连接的显卡的处理系统启动时绕垂直轴旋转。 各向异性反射器粘合在反射镜的倾斜表面上。 视频投影机在镜子旋转时将投影仪的物体的视频信号投影到镜子的倾斜表面上，使得表示视频信号的光线被朝向360度范围的视野被重定向。 处理系统呈现重定向的光线，以交互地产生对象的水平视差3D显示。 响应于跟踪系统跟踪观看者运动，垂直视差可以包括在显示器中，以垂直地调整对象的显示视图。
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