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1. 发明申请

US20180018814A1 REINFORCEMENT LEARNING FOR LIGHT TRANSPORT 审中-公开
公开(公告)号：US20180018814A1
公开(公告)日：2018-01-18
申请号：US15648308
申请日：2017-07-12
申请人： NVIDIA Corporation
发明人： Ken Patrik Dahm , Alexander Keller
IPC分类号： G06T15/50 , G06N3/08 , G06N99/00 , G06T15/80
CPC分类号： G06T15/506 , G06N3/08 , G06N99/005 , G06T15/80
摘要： A method for light transport includes steps of initializing a data structure that is configured to provide an importance value for each incident sample in a three-dimensional (3D) scene and tracing, in a direction from an origin, a ray of a plurality of rays through the 3D scene to intersect an object at a hitpoint. Additional steps include selecting a next direction of the ray according to a distribution of the importance values at the hitpoint, tracing the ray in the next direction to find a next hitpoint, updating a first importance value corresponding to the hitpoint using a second importance value corresponding to the next hitpoint, and setting the hitpoint of the ray to the next hitpoint. The additional steps are repeated until the next hitpoint is an endpoint. A contribution, based on each hitpoint and the endpoint, to a pixel that is intersected by the ray is recorded.

2. 发明申请

US20140313198A1 SYSTEM, METHOD, AND COMPUTER PROGRAM PRODUCT FOR PERFORMING PATH SPACE FILTERING 有权
标题翻译：用于执行路径空间过滤的系统，方法和计算机程序产品
公开(公告)号：US20140313198A1
公开(公告)日：2014-10-23
申请号：US14166794
申请日：2014-01-28
申请人： NVIDIA Corporation
发明人： Alexander Keller , Ken Patrik Dahm , Nikolaus Binder
IPC分类号： G06T15/06
CPC分类号： G06T15/506 , G06T15/06
摘要： A system, method, and computer program product are provided for performing path space filtering. In use, a set of light transport paths associated with a scene is sampled. Additionally, a plurality of vertices associated with the sampled set of light transport paths is selected, where each selected vertex has an associated throughput and light contribution. Further, an averaged light contribution of each of the selected plurality of vertices is determined, utilizing one or more weights. Further still, the averaged light contribution of each of the selected plurality of vertices is combined after multiplying the averaged light contribution of each of the selected vertices by the associated throughput of the vertex.
摘要翻译：提供了一种用于执行路径空间过滤的系统，方法和计算机程序产品。在使用中，对与场景相关联的一组光传输路径进行采样。另外，选择与采样的光传输路径组相关联的多个顶点，其中每个所选择的顶点具有相关联的吞吐量和光贡献。此外，利用一个或多个权重来确定所选择的多个顶点中的每一个的平均光贡献。此外，将所选择的多个顶点中的每一个的平均光贡献在将每个所选顶点的平均光贡献乘以顶点的相关吞吐量之后组合。

3. 发明授权

US09953457B2 System, method, and computer program product for performing path space filtering 有权
公开(公告)号：US09953457B2
公开(公告)日：2018-04-24
申请号：US14166794
申请日：2014-01-28
申请人： NVIDIA Corporation
发明人： Alexander Keller , Ken Patrik Dahm , Nikolaus Binder
IPC分类号： G06T15/06 , G06T15/50
CPC分类号： G06T15/506 , G06T15/06
摘要： A system, method, and computer program product are provided for performing path space filtering. In use, a set of light transport paths associated with a scene is sampled. Additionally, a plurality of vertices associated with the sampled set of light transport paths is selected, where each selected vertex has an associated throughput and light contribution. Further, an averaged light contribution of each of the selected plurality of vertices is determined, utilizing one or more weights. Further still, the averaged light contribution of each of the selected plurality of vertices is combined after multiplying the averaged light contribution of each of the selected vertices by the associated throughput of the vertex.

4. 发明授权

US09424684B2 System, method, and computer program product for simulating light transport 有权
标题翻译：用于模拟光传输的系统，方法和计算机程序产品
公开(公告)号：US09424684B2
公开(公告)日：2016-08-23
申请号：US13962877
申请日：2013-08-08
申请人： NVIDIA Corporation
发明人： Alexander Keller , Ken Patrik Dahm , Nikolaus Binder
IPC分类号： G06T15/50
CPC分类号： G06T15/506
摘要： A system, method, and computer program product are provided for simulating light transport. In operation, a distribution function is decomposed utilizing a technique for sampling from a probability distribution (e.g. the Alias Method, etc.). Additionally, light transport associated with at least one scene is simulated utilizing information associated with the decomposed distribution function.
摘要翻译：提供了一种用于模拟光传输的系统，方法和计算机程序产品。在操作中，使用从概率分布（例如，别名方法等）进行采样的技术来分解分布函数。此外，利用与分解分布函数相关联的信息来模拟与至少一个场景相关联的光传输。

5. 发明申请

US20150042652A1 SYSTEM, METHOD, AND COMPUTER PROGRAM PRODUCT FOR SIMULATING LIGHT TRANSPORT 有权
标题翻译：用于模拟光传输的系统，方法和计算机程序产品
公开(公告)号：US20150042652A1
公开(公告)日：2015-02-12
申请号：US13962877
申请日：2013-08-08
申请人： NVIDIA Corporation
发明人： Alexander Keller , Ken Patrik Dahm , Nikolaus Binder
IPC分类号： G06T15/50
CPC分类号： G06T15/506
摘要： A system, method, and computer program product are provided for simulating light transport. In operation, a distribution function is decomposed utilizing a technique for sampling from a probability distribution (e.g. the Alias Method, etc.). Additionally, light transport associated with at least one scene is simulated utilizing information associated with the decomposed distribution function.
摘要翻译：提供了一种用于模拟光传输的系统，方法和计算机程序产品。在操作中，使用从概率分布（例如，别名方法等）进行采样的技术来分解分布函数。此外，利用与分解分布函数相关联的信息来模拟与至少一个场景相关联的光传输。

6. 发明授权

US10115229B2 Reinforcement learning for light transport 有权
公开(公告)号：US10115229B2
公开(公告)日：2018-10-30
申请号：US15648308
申请日：2017-07-12
申请人： NVIDIA Corporation
发明人： Ken Patrik Dahm , Alexander Keller
IPC分类号： G06T15/60 , G06T15/50 , G06N99/00 , G06T15/80 , G06N3/08
摘要： A method for light transport includes steps of initializing a data structure that is configured to provide an importance value for each incident sample in a three-dimensional (3D) scene and tracing, in a direction from an origin, a ray of a plurality of rays through the 3D scene to intersect an object at a hitpoint. Additional steps include selecting a next direction of the ray according to a distribution of the importance values at the hitpoint, tracing the ray in the next direction to find a next hitpoint, updating a first importance value corresponding to the hitpoint using a second importance value corresponding to the next hitpoint, and setting the hitpoint of the ray to the next hitpoint. The additional steps are repeated until the next hitpoint is an endpoint. A contribution, based on each hitpoint and the endpoint, to a pixel that is intersected by the ray is recorded.

7. 发明授权

US09501865B2 System, method, and computer program product for determining a quantity of light received by an element of a scene 有权
标题翻译：用于确定由场景的元素接收的光量的系统，方法和计算机程序产品
公开(公告)号：US09501865B2
公开(公告)日：2016-11-22
申请号：US14165403
申请日：2014-01-27
申请人： NVIDIA Corporation
发明人： Pascal Albert Gautron , Carsten Alexander Waechter , Marc Droske , Lutz Kettner , Alexander Keller , Nikolaus Binder , Ken Patrik Dahm
IPC分类号： G06T15/50
CPC分类号： G06T15/50
摘要： A system, method, and computer program product are provided for determining a quantity of light received by an element of a scene. In use, a quantity of light received by a first element of the scene is determined by averaging a quantity of light received by elements of the scene that are associated with a selected set of light paths.
摘要翻译：提供了一种系统，方法和计算机程序产品，用于确定由场景元素接收的光量。在使用中，通过对与所选择的一组光路相关联的场景的元素所接收的光量进行平均来确定由场景的第一元素接收的光量。

8. 发明申请

US20150215512A1 SYSTEM, METHOD, AND COMPUTER PROGRAM PRODUCT FOR DETERMINING A QUANTITY OF LIGHT RECEIVED BY AN ELEMENT OF A SCENE 有权
标题翻译：系统，方法和计算机程序产品，用于确定场景元素接收到的数量
公开(公告)号：US20150215512A1
公开(公告)日：2015-07-30
申请号：US14165403
申请日：2014-01-27
申请人： NVIDIA Corporation
发明人： Pascal Albert Gautron , Carsten Alexander Waechter , Marc Droske , Lutz Kettner , Alexander Keller , Nikolaus Binder , Ken Patrik Dahm
IPC分类号： H04N5/235
CPC分类号： G06T15/50
摘要： A system, method, and computer program product are provided for determining a quantity of light received by an element of a scene. In use, a quantity of light received by a first element of the scene is determined by averaging a quantity of light received by elements of the scene that are associated with a selected set of light paths.
摘要翻译：提供了一种系统，方法和计算机程序产品，用于确定由场景元素接收的光量。在使用中，通过对与所选择的一组光路相关联的场景的元素所接收的光量进行平均来确定由场景的第一元素接收的光量。

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