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公开(公告)号：US06919962B2
公开(公告)日：2005-07-19
申请号：US10774173
申请日：2004-02-07
CPC分类号： G01N21/55 , G01N21/57 , G01N2021/556
摘要： A reflectometry apparatus and method is presented that allow the diffuse and specular reflectance parameters of an object to be independently and reliably measured, and that allow the variations in surface normal and surface height to be estimated. An extended light source having an elongated configuration, for example a linear cylindrical light source such as a neon tube, is moved across the surface of an object while a digital camera detects the reflected light to acquire a series of images of the object surface. A reflectance trace table is synthesized for a range of model parameters using a virtualized rendition of the linear light source. For each pixel, the observed reflectances are compared to the synthesized reflectance trace table, to determine the reflectance parameters that most closely match the observed data.
摘要翻译： 提出一种反射测量装置和方法，其允许物体的漫反射和镜面反射参数被独立且可靠地测量，并且允许估计表面法线和表面高度的变化。 当数字照相机检测到反射光以获得物体表面的一系列图像时，具有细长构造的延伸光源（例如诸如氖管的线性圆柱形光源）被移动穿过物体的表面。 使用线性光源的虚拟化再现，针对范围的模型参数合成反射率轨迹表。 对于每个像素，将观察到的反射率与合成的反射率轨迹表进行比较，以确定与观测数据最接近的反射参数。
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公开(公告)号：US07978202B2
公开(公告)日：2011-07-12
申请号：US12347782
申请日：2008-12-31
IPC分类号： G09G5/02
CPC分类号： G06T5/007 , G06T5/009 , G06T11/001 , G06T2207/20208 , G09G5/02 , G09G5/06 , G11B27/034
摘要： A high dynamic range image editing system for editing an image file having pixels spanning a first range of light intensity levels in an image editing system that only displays differences in the light intensity levels of pixels within a second range of light intensity levels that is less than the first range of light intensity levels, without reducing the range of light intensity levels in the image file.
摘要翻译： 一种高动态范围图像编辑系统，用于编辑图像文件，该图像文件具有跨越第一范围的光强度水平的图像文件系统，该图像文件系统仅显示光强度级别小于等于的第二范围内的像素的光强度级别的差异 第一个光强级别范围，而不减少图像文件中光强度的范围。
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公开(公告)号：US06888552B2
公开(公告)日：2005-05-03
申请号：US10170087
申请日：2002-06-10
IPC分类号： G06T11/00 , G11B27/034 , G09G5/02
CPC分类号： G06T5/007 , G06T5/009 , G06T11/001 , G06T2207/20208 , G09G5/02 , G09G5/06 , G11B27/034
摘要： A high dynamic range image editing system for editing an image file having pixels spanning a first range of light intensity levels in an image editing system that only displays differences in the light intensity levels of pixels within a second range of light intensity levels that is less than the first range of light intensity levels, without reducing the range of light intensity levels in the image file.
摘要翻译： 一种高动态范围图像编辑系统，用于编辑图像文件，该图像文件具有跨越第一范围的光强度水平的图像文件系统，该图像文件系统仅显示光强度级别小于等于的第二范围内的像素的光强度级别的差异 第一个光强级别范围，而不减少图像文件中光强度的范围。
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公开(公告)号：US07529004B2
公开(公告)日：2009-05-05
申请号：US10869990
申请日：2004-06-17
CPC分类号： H04N1/603
摘要： A lighting reproduction apparatus for illuminating a subject includes a reproduction light optical source that generates reproduction light. The optical source includes a plurality of light emitters, each characterized by an individual color channel. There may be nine different color channels. A driver drives the light emitter color channels with intensity values at which a substantial spectral match is achieved between the reproduction light and the desired illuminant, so that the subject appears to be illuminated by the desired illuminant. These channel intensity values may be determined by solving a minimization equation that minimizes a sum of square residuals of the reproduction light spectra to the desired illuminant spectra. The output reproduction light may be metamerically, matched with the desired illuminant, with respect to a particular camera's spectral response. One or more spectral reflectances of the subject may be measured and incorporated into the optimization process.
摘要翻译： 用于照明被摄体的照明再现装置包括产生再现光的再现光源。 光源包括多个发光体，每个发光体的特征在于单独的颜色通道。 可能有九种不同的颜色通道。 驱动器驱动光发射器颜色通道，其强度值在再现光和期望的光源之间实现基本的光谱匹配，使得被摄体看起来被所需光源照亮。 这些通道强度值可以通过求解将再现光谱的平方残差之和最小化为期望的光谱的最小化方程来确定。 相对于特定照相机的光谱响应，输出再现光可以与所需光源相符合地匹配。 可以测量受试者的一个或多个光谱反射率并将其并入优化过程。
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公开(公告)号：US06685326B2
公开(公告)日：2004-02-03
申请号：US10165371
申请日：2002-06-07
IPC分类号： G03B1507
CPC分类号： G03B15/02 , G03B15/07 , H04N5/2224 , H04N5/272 , H04N5/275
摘要： A lighting simulation process for simulating the lighting of a subject at a location in a scene. Scene illumination data is created that specifies the illumination that the scene provides at the location at which the subject is to be simulated from a plurality of spatial directions. Subject illumination data is created that specifies the appearance of the subject when illuminated from a plurality of different spatial directions. The subject is then illuminated as if at the location in the scene by combing the scene illumination data with the subject illumination data.
摘要翻译： 用于在场景中的位置模拟被摄体的照明的照明模拟过程。 创建场景照明数据，其从多个空间方向指定场景在被摄体要被模拟的位置处提供的照明。 创建主题照明数据，其指定从多个不同的空间方向照明时的被摄体的外观。 然后通过将场景照明数据与对象照明数据相结合来将被摄体照亮，就像在场景中的位置一样。
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公开(公告)号：US20140327691A1
公开(公告)日：2014-11-06
申请号：US14086231
申请日：2013-11-21
CPC分类号： G06T5/007 , G06T5/009 , G06T11/001 , G06T2207/20208 , G09G5/02 , G09G5/06 , G11B27/034
摘要： A high dynamic range image editing system for editing an image file having pixels spanning a first range of light intensity levels in an image editing system that only displays differences in the light intensity levels of pixels within a second range of light intensity levels that is less than the first range of light intensity levels, without reducing the range of light intensity levels in the image file.
摘要翻译： 一种高动态范围图像编辑系统，用于编辑图像文件，该图像文件具有跨越第一范围的光强度水平的图像文件系统，该图像文件系统仅显示光强度级别小于等于的第二范围内的像素的光强度级别的差异 第一个光强级别范围，而不减少图像文件中光强度的范围。
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公开(公告)号：US08605108B2
公开(公告)日：2013-12-10
申请号：US13159156
申请日：2011-06-13
IPC分类号： G09G5/02
CPC分类号： G06T5/007 , G06T5/009 , G06T11/001 , G06T2207/20208 , G09G5/02 , G09G5/06 , G11B27/034
摘要： A high dynamic range image editing system for editing an image file having pixels spanning a first range of light intensity levels in an image editing system that only displays differences in the light intensity levels of pixels within a second range of light intensity levels that is less than the first range of light intensity levels, without reducing the range of light intensity levels in the image file.
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公开(公告)号：US07486299B2
公开(公告)日：2009-02-03
申请号：US11049834
申请日：2005-02-01
IPC分类号： G09G5/02
CPC分类号： G06T5/007 , G06T5/009 , G06T11/001 , G06T2207/20208 , G09G5/02 , G09G5/06 , G11B27/034
摘要： A high dynamic range image editing system for editing an image file having pixels spanning a first range of light intensity levels in an image editing system that only displays differences in the light intensity levels of pixels within a second range of light intensity levels that is less than the first range of light intensity levels, without reducing the range of light intensity levels in the image file.
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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：US08134555B2
公开(公告)日：2012-03-13
申请号：US12105141
申请日：2008-04-17
申请人： Paul E. Debevec , Wan-Chun Ma , Timothy Hawkins
发明人： Paul E. Debevec , Wan-Chun Ma , Timothy Hawkins
IPC分类号： G06T15/00
CPC分类号： G01B11/25
摘要： An apparatus for generating a surface normal map of an object may include a plurality of light sources having intensities that are controllable so as to generate one or more gradient illumination patterns. The light sources are configured and arranged to illuminate the surface of the object with the gradient illumination patterns. A camera may receive light reflected from the illuminated surface of the object, and generate data representative of the reflected light. A processing system may process the data so as to estimate the surface normal map of the surface of the object. A specular normal map and a diffuse normal map of the surface of the object may be generated separately, by placing polarizers on the light sources and in front of the camera so as to illuminate the surface of the object with polarized spherical gradient illumination patterns.
摘要翻译： 用于产生物体的表面法线图的装置可以包括具有可控制的强度的多个光源，以便生成一个或多个梯度照明图案。 光源被配置和布置成用梯度照明图案来照亮物体的表面。 相机可以接收从物体的照射表面反射的光，并产生表示反射光的数据。 处理系统可以处理数据以估计对象表面的表面法线贴图。 物体表面的镜面法线贴图和漫反射法线图可以单独生成，方法是将偏振器放置在光源上并在相机前方，以偏光球形渐变照明图案照射物体表面。
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