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1. 发明授权

US07262770B2 Graphics image rendering with radiance self-transfer for low-frequency lighting environments 有权
标题翻译：用于低频照明环境的图形图像渲染与辐射自转传输
公开(公告)号：US07262770B2
公开(公告)日：2007-08-28
申请号：US10389553
申请日：2003-03-14
申请人： Peter-Pike J. Sloan , John M. Snyder , Jan Kautz
发明人： Peter-Pike J. Sloan , John M. Snyder , Jan Kautz
IPC分类号： G06T15/50
CPC分类号： G06T15/506
摘要： Real-time image rendering of diffuse and glossy objects in low-frequency lighting environments captures soft shadows, interreflections, and caustics. As a preprocess, a global transport simulator creates functions over the object's surface representing transfer of arbitrary, low-frequency source lighting into exiting radiance, but including global effects like shadowing and interreflection from the object onto itself. At run-time, these transfer functions are applied to the actual source lighting. Dynamic, local lighting is handled by sampling close to the object at every frame; the object can also be rigidly rotated with respect to the lighting and vice versa. Lighting and transfer functions are represented using low-order spherical harmonics. Functions for radiance transfer from a dynamic lighting environment through a preprocessed object to neighboring points in space further allow cast soft shadows and caustics from rigidly moving casters onto arbitrary, dynamic receivers.
摘要翻译：低频照明环境中漫反射和光面物体的实时图像渲染可以捕获柔和的阴影，反射和焦散。作为预处理，全局传输模拟器在对象的表面上创建表示将任意低频源照明传输到退出辐射的功能，但包括全局效果，如从对象到其自身的遮蔽和反射。在运行时，这些传递函数被应用于实际的源照明。动态的，局部照明是通过在每个框架附近的物体进行采样来处理的; 物体也可以相对于照明而刚性地旋转，反之亦然。照明和传递函数用低阶球面谐波表示。从动态照明环境通过预处理对象到空间中的相邻点的辐射传递函数进一步允许将软阴影和焦散从刚性移动的脚轮投射到任意的动态接收器上。

2. 发明授权

US07609265B2 Graphics image rendering with radiance self-transfer for low-frequency lighting environments 失效
标题翻译：用于低频照明环境的图形图像渲染与辐射自转传输
公开(公告)号：US07609265B2
公开(公告)日：2009-10-27
申请号：US11825918
申请日：2007-07-09
申请人： Peter-Pike J. Sloan , John M. Snyder , Jan Kautz
发明人： Peter-Pike J. Sloan , John M. Snyder , Jan Kautz
IPC分类号： G06T15/50 , G06T15/60
CPC分类号： G06T15/506
摘要： Real-time image rendering of diffuse and glossy objects in low-frequency lighting environments captures soft shadows, interreflections, and caustics. As a preprocess, a global transport simulator creates functions over the object's surface representing transfer of arbitrary, low-frequency source lighting into exiting radiance, but including global effects like shadowing and interreflection from the object onto itself. At run-time, these transfer functions are applied to the actual source lighting. Dynamic, local lighting is handled by sampling close to the object at every frame; the object can also be rigidly rotated with respect to the lighting and vice versa. Lighting and transfer functions are represented using low-order spherical harmonics. Functions for radiance transfer from a dynamic lighting environment through a preprocessed object to neighboring points in space further allow cast soft shadows and caustics from rigidly moving casters onto arbitrary, dynamic receivers.
摘要翻译：低频照明环境中漫反射和光面物体的实时图像渲染可以捕获柔和的阴影，反射和焦散。作为预处理，全局传输模拟器在对象的表面上创建表示将任意低频源照明传输到退出辐射的功能，但包括全局效果，如从对象到其自身的遮蔽和反射。在运行时，这些传递函数被应用于实际的源照明。动态的，局部照明是通过在每个框架附近的物体进行采样来处理的; 物体也可以相对于照明而刚性地旋转，反之亦然。照明和传递函数用低阶球面谐波表示。从动态照明环境通过预处理对象到空间中的相邻点的辐射传递函数进一步允许将软阴影和焦散从刚性移动的脚轮投射到任意的动态接收器上。

3. 发明申请

US20150139608A1 METHODS AND DEVICES FOR EXPLORING DIGITAL VIDEO COLLECTIONS 审中-公开
标题翻译：探索数字视频收藏的方法和设备
公开(公告)号：US20150139608A1
公开(公告)日：2015-05-21
申请号：US14400548
申请日：2012-05-11
申请人： Christian Theobalt , Kwang In Kim , Jan Kautz , James Tompkin
发明人： Christian Theobalt , Kwang In Kim , Jan Kautz , James Tompkin
IPC分类号： G11B27/28 , G06T19/20 , G11B27/34 , G06K9/00 , G11B27/031
CPC分类号： G11B27/28 , G06K9/00718 , G06K9/00744 , G06K9/00758 , G06T19/20 , G06T2219/20 , G11B27/031 , G11B27/105 , G11B27/34
摘要： Approaches presented herein enable to the interactive exploration of digital videos. The videos can include digital videos that have casually been captured by consumer devices, such as mobile phone cameras, tablets, and the like. Robust methods and systems are presented that enable such digital videos to be explored in interesting and advantageous ways, including transitions and other such features.
摘要翻译：本文介绍的方法可以进行数字视频的互动探索。视频可以包括随机地被消费者设备捕获的数字视频，诸如手机相机，平板电脑等。提出了强大的方法和系统，使得能够以有趣和有利的方式探索这样的数字视频，包括转换和其他这样的特征。

4. 发明授权

US09202310B2 Physical reproduction of reflectance fields 有权
标题翻译：反射场的物理再现
公开(公告)号：US09202310B2
公开(公告)日：2015-12-01
申请号：US13608819
申请日：2012-09-10
申请人： Bernd Bickel , Marc Alexa , Jan Kautz , Wojciech Matusik , Fabrizio Pece
发明人： Bernd Bickel , Marc Alexa , Jan Kautz , Wojciech Matusik , Fabrizio Pece
IPC分类号： G06T17/00
CPC分类号： G06T17/00 , B33Y50/00
摘要： A three-dimensional relief can be produced from one or more two-dimensional digital (2D) images. A height field is computed from the 2D images and illumination direction information. The height field comprises a multiplicity of geometric surface elements arrayed in a 2D field corresponding to the pixels of the one or more 2D images. Each geometric surface element corresponds to a pixel of each of the digital images and has at least one height parameter representing a displacement from a surface floor. Once the height field is computed, optimizations can be made to the height field including adding and adjusting albedo and glossy surface finishing. The height field can be used to fabricate relief elements in a material, such that each relief element corresponds in shape, position in the height field, and height above the surface floor, to one of the geometric surface elements in the height field.
摘要翻译：可以从一个或多个二维数字（2D）图像产生三维浮雕。根据2D图像和照明方向信息计算高度场。高度场包括排列在对应于一个或多个2D图像的像素的2D场中的多个几何表面元素。每个几何表面元素对应于每个数字图像的像素，并且具有至少一个表示来自表层的位移的高度参数。一旦计算了高度场，就可以对高度场进行优化，包括添加和调整反照率和光泽表面光洁度。高度场可用于制造材料中的浮雕元件，使得每个浮雕元件在高度场中的形状，位置和表面地板上方的高度对应于高度场中的几何表面元件之一。

5. 发明申请

US20130016100A1 PHYSICAL REPRODUCTION OF REFLECTANCE FIELDS 有权
标题翻译：反射场的物理再现
公开(公告)号：US20130016100A1
公开(公告)日：2013-01-17
申请号：US13608819
申请日：2012-09-10
申请人： Bernd Bickel , Marc Alexa , Jan Kautz , Wojciech Matusik , Fabrizio Pece
发明人： Bernd Bickel , Marc Alexa , Jan Kautz , Wojciech Matusik , Fabrizio Pece
IPC分类号： G06T17/00
CPC分类号： G06T17/00 , B33Y50/00
摘要： A three-dimensional relief can be produced from one or more two-dimensional digital (2D) images. A height field is computed from the 2D images and illumination direction information. The height field comprises a multiplicity of geometric surface elements arrayed in a 2D field corresponding to the pixels of the one or more 2D images. Each geometric surface element corresponds to a pixel of each of the digital images and has at least one height parameter representing a displacement from a surface floor. Once the height field is computed, optimizations can be made to the height field including adding and adjusting albedo and glossy surface finishing. The height field can be used to fabricate relief elements in a material, such that each relief element corresponds in shape, position in the height field, and height above the surface floor, to one of the geometric surface elements in the height field.
摘要翻译：可以从一个或多个二维数字（2D）图像产生三维浮雕。根据2D图像和照明方向信息计算高度场。高度场包括排列在对应于一个或多个2D图像的像素的2D场中的多个几何表面元素。每个几何表面元素对应于每个数字图像的像素，并且具有至少一个表示来自表层的位移的高度参数。一旦计算了高度场，就可以对高度场进行优化，包括添加和调整反照率和光泽表面光洁度。高度场可用于制造材料中的浮雕元件，使得每个浮雕元件在高度场中的形状，位置和表面地板上方的高度对应于高度场中的几何表面元件之一。

6. 发明申请

US20090079758A1 Method and device for generating shadow maps 审中-公开
公开(公告)号：US20090079758A1
公开(公告)日：2009-03-26
申请号：US11902683
申请日：2007-09-25
申请人： Thomas Annen , Hans-Peter Seidel , Jan Kautz , Tom Mertens
发明人： Thomas Annen , Hans-Peter Seidel , Jan Kautz , Tom Mertens
IPC分类号： G09G5/00
CPC分类号： G06T15/60 , G09G5/363 , G09G2360/18
摘要： A method and a device for determining shadows in a computer-generated image are provided, wherein the determination whether a pixel x is in shadow is based on a shadow test function ƒ(d(x), z(P)), d(x) representing the depth of the pixel x with respect to the light source and z(p) being a shadow map z for the computer-generated image. According to the invention, the shadow test function ƒ satisfies f  ( d  ( x ) , z  ( p ) ) = ∑ i = 1 N  a i  ( d  ( x ) )  B i  ( z  ( p ) ) wherein ai are weighting coefficients depending on d, Bi are basis functions in terms of z and N is a natural number.

7. 发明申请

US20070257913A1 Graphics image rendering with radiance self-transfer for low-frequency lighting environments 失效
公开(公告)号：US20070257913A1
公开(公告)日：2007-11-08
申请号：US11825918
申请日：2007-07-09
申请人： Peter-Pike Sloan , John Snyder , Jan Kautz
发明人： Peter-Pike Sloan , John Snyder , Jan Kautz
IPC分类号： G06T15/60
CPC分类号： G06T15/506
摘要： Real-time image rendering of diffuse and glossy objects in low-frequency lighting environments captures soft shadows, interreflections, and caustics. As a preprocess, a global transport simulator creates functions over the object's surface representing transfer of arbitrary, low-frequency source lighting into exiting radiance, but including global effects like shadowing and interreflection from the object onto itself. At run-time, these transfer functions are applied to the actual source lighting. Dynamic, local lighting is handled by sampling close to the object at every frame; the object can also be rigidly rotated with respect to the lighting and vice versa. Lighting and transfer functions are represented using low-order spherical harmonics. Functions for radiance transfer from a dynamic lighting environment through a preprocessed object to neighboring points in space further allow cast soft shadows and caustics from rigidly moving casters onto arbitrary, dynamic receivers.

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