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1. 发明授权

US09020787B2 Methods, systems and media for simulating contact scenarios 有权
标题翻译：用于模拟联系方案的方法，系统和媒体
公开(公告)号：US09020787B2
公开(公告)日：2015-04-28
申请号：US12707492
申请日：2010-02-17
申请人： Eitan Grinspun , David Harmon , Rasmus Tamstorf , Paul E. Vouga
发明人： Eitan Grinspun , David Harmon , Rasmus Tamstorf , Paul E. Vouga
IPC分类号： G06F7/60 , G06F17/10 , G06G7/48 , G06F17/50 , G06F17/12
CPC分类号： G06F17/5009 , G06F17/12 , G06F17/50 , G06F17/5018 , G06F2217/16
摘要： Embodiments of the invention provide methods enabling reliable simulation of objects in contact scenarios. Embodiments of the invention utilize methods providing three parameter-independent guarantees. According to embodiments of the invention, simulations of well-posed problems: have no interpenetrations; obey causality, momentum and energy conservation laws; and complete in finite time.
摘要翻译：本发明的实施例提供了在接触情况下能够可靠地模拟对象的方法。本发明的实施例利用提供三个独立于参数的保证的方法。根据本发明的实施例，精心制作的问题的模拟：没有互穿; 服从因果关系，动量和节能法; 并在有限的时间内完成。

2. 发明授权

US08674988B2 System and method for artist friendly controls for hair shading 有权
标题翻译：用于艺术家友好的头发遮蔽控制的系统和方法
公开(公告)号：US08674988B2
公开(公告)日：2014-03-18
申请号：US12802612
申请日：2010-06-09
申请人： Rasmus Tamstorf , Iman Sadeghi , Charles T. Tappan
发明人： Rasmus Tamstorf , Iman Sadeghi , Charles T. Tappan
IPC分类号： G06T15/50
CPC分类号： G06T15/506
摘要： There is provided a system and method for artist friendly control of three-dimensional object shading, particularly hair. A methodology is disclosed for deriving a pseudo scattering function over a domain of Artist Friendly Controls (AFCs) from a physically based scattering function over a domain of Physically Based Controls (PBCs). The pseudo scattering function can provide intuitive decoupled adjustments of specific important visual characteristics while still providing a convincing and aesthetically pleasing result. An end user such as an artist may thus control the values, or AFCs, to implement specific aesthetic features for the shading of objects as seen on a display. The pseudo scattering function may be utilized for single scattering and multiple scattering models of hair shading.
摘要翻译：提供了一种用于艺术家友好地控制三维物体阴影，特别是头发的系统和方法。公开了一种用于通过物理基础控制（PBC）领域的基于物理的散射函数在艺术家友好控制（AFC）的域上导出伪散射函数的方法。伪散射函数可以提供特定重要视觉特征的直观解耦调整，同时仍然提供令人信服和美观的结果。诸如艺术家的最终用户因此可以控制这些值，或者AFC，以实现在显示器上看到的对象的阴影的特定的美学特征。伪散射函数可以用于单色散射和多个散射模型的毛发阴影。

3. 发明授权

US08570319B2 Perceptually-based compensation of unintended light pollution of images for projection display systems 有权
标题翻译：基于感知的投影显示系统图像意外的光污染补偿
公开(公告)号：US08570319B2
公开(公告)日：2013-10-29
申请号：US12828137
申请日：2010-06-30
申请人： Jeroen van Baar , Steven Poulakos , Rasmus Tamstorf , Markus Gross
发明人： Jeroen van Baar , Steven Poulakos , Rasmus Tamstorf , Markus Gross
IPC分类号： G06T15/00
CPC分类号： H04N13/122 , G09G3/003 , G09G2320/0285
摘要： Where images are displayed such that unintended light is also included and that light cannot be fully subtracted from the displayed image, an image processor compensates by compensating for the remaining light using perceptual models. In some cases, the perceptual model includes a plurality of user sensitivities and computation is performed, at least in part, based on expected user sensitivity to light pollution in portions of the images. The perceptual model might include a contrast sensitivity function, threshold-vs-intensity, saliency prediction and visual masking. The model might include artist indications of view attention. A light pollution likelihood map might be used to reduce the amount of computation needed, using a likelihood measure to determine an amount of computation to perform.
摘要翻译：在显示图像的情况下，还包括非预期的光，并且不能从显示的图像中完全减去光，图像处理器通过使用感知模型补偿剩余光来补偿。在一些情况下，感知模型包括多个用户敏感度，并且至少部分地基于图像的一部分中对光污染的预期用户敏感度来执行计算。感知模型可能包括对比敏感度函数，阈值vs强度，显着性预测和视觉掩蔽。该模型可能包括观众关注的艺术家指示。可以使用光污染可能性图来减少所需的计算量，使用似然度量来确定要执行的计算量。

4. 发明授权

US09135738B2 Efficient elasticity for character skinning 有权
标题翻译：人物皮肤的高弹性
公开(公告)号：US09135738B2
公开(公告)日：2015-09-15
申请号：US13331920
申请日：2011-12-20
申请人： Rasmus Tamstorf , Andrew Selle , Aleka McAdams , Eftychios Sifakis , Joseph Teran
发明人： Rasmus Tamstorf , Andrew Selle , Aleka McAdams , Eftychios Sifakis , Joseph Teran
IPC分类号： G06T19/20 , G06T13/00 , G06T3/00
CPC分类号： G06T13/00 , G06T3/0093 , G06T19/20 , G06T2219/2021
摘要： A novel algorithmic framework is presented for the simulation of hyperelastic soft tissues that drastically improves each aspect discussed above compared to existing techniques. The approach is robust to large deformation (even inverted configurations) and extremely stable by virtue of careful treatment of linearization. Additionally, a new multigrid approach is presented to efficiently support hundreds of thousands of degrees of freedom (rather than the few thousands typical of existing techniques) in a production environment. Furthermore, these performance and robustness improvements are guaranteed in the presence of both collision and quasistatic/implicit time stepping techniques. The result is a significant advance in the applicability of hyperelastic simulation to skeleton driven character skinning.
摘要翻译：提出了一种新颖的算法框架，用于模拟超弹性软组织，与现有技术相比，大大改进了上述每个方面。该方法对大变形（甚至倒置配置）是鲁棒的，并且通过仔细处理线性化非常稳定。此外，提出了一种新的多网格方法，以有效地支持生产环境中数十万的自由度（而不是几千种典型的现有技术）。此外，在碰撞和准静态/隐式时间步进技术的存在下，保证了这些性能和鲁棒性的提高。结果是超弹性模拟对骨架驱动角色剥皮的适用性取得了显着进步。

5. 发明申请

US20120281019A1 EFFICIENT ELASTICITY FOR CHARACTER SKINNING 有权
标题翻译：有效的弹性皮肤护理
公开(公告)号：US20120281019A1
公开(公告)日：2012-11-08
申请号：US13331920
申请日：2011-12-20
申请人： Rasmus Tamstorf , Andrew Selle , Aleka McAdams , Eftychios Sifakis , Joseph Teran
发明人： Rasmus Tamstorf , Andrew Selle , Aleka McAdams , Eftychios Sifakis , Joseph Teran
IPC分类号： G09G5/00
CPC分类号： G06T13/00 , G06T3/0093 , G06T19/20 , G06T2219/2021
摘要： A novel algorithmic framework is presented for the simulation of hyperelastic soft tissues that drastically improves each aspect discussed above compared to existing techniques. The approach is robust to large deformation (even inverted configurations) and extremely stable by virtue of careful treatment of linearization. Additionally, a new multigrid approach is presented to efficiently support hundreds of thousands of degrees of freedom (rather than the few thousands typical of existing techniques) in a production environment. Furthermore, these performance and robustness improvements are guaranteed in the presence of both collision and quasistatic/implicit time stepping techniques. The result is a significant advance in the applicability of hyperelastic simulation to skeleton driven character skinning.
摘要翻译：提出了一种新颖的算法框架，用于模拟超弹性软组织，与现有技术相比，大大改进了上述每个方面。该方法对大变形（甚至倒置配置）是鲁棒的，并且通过仔细处理线性化非常稳定。此外，提出了一种新的多网格方法，以有效地支持生产环境中数十万的自由度（而不是几千种典型的现有技术）。此外，在碰撞和准静态/隐式时间步进技术的存在下，保证了这些性能和鲁棒性的提高。结果是超弹性模拟对骨架驱动角色剥皮的适用性取得了显着进步。

6. 发明申请

US20110304623A1 System and method for artist friendly controls for hair shading 有权
标题翻译：用于艺术家友好的头发遮蔽控制的系统和方法
公开(公告)号：US20110304623A1
公开(公告)日：2011-12-15
申请号：US12802612
申请日：2010-06-09
申请人： Rasmus Tamstorf , Iman Sadeghi , Charles T. Tappan
发明人： Rasmus Tamstorf , Iman Sadeghi , Charles T. Tappan
IPC分类号： G06T15/50
CPC分类号： G06T15/506
摘要： There is provided a system and method for artist friendly control of three-dimensional object shading, particularly hair. A methodology is disclosed for deriving a pseudo scattering function over a domain of Artist Friendly Controls (AFCs) from a physically based scattering function over a domain of Physically Based Controls (PBCs). The pseudo scattering function can provide intuitive decoupled adjustments of specific important visual characteristics while still providing a convincing and aesthetically pleasing result. An end user such as an artist may thus control the values, or AFCs, to implement specific aesthetic features for the shading of objects as seen on a display. The pseudo scattering function may be utilized for single scattering and multiple scattering models of hair shading.
摘要翻译：提供了一种用于艺术家友好地控制三维物体阴影，特别是头发的系统和方法。公开了一种用于通过物理基础控制（PBC）领域的基于物理的散射函数在艺术家友好控制（AFC）的域上导出伪散射函数的方法。伪散射函数可以提供特定重要视觉特征的直观解耦调整，同时仍然提供令人信服和美观的结果。诸如艺术家的最终用户因此可以控制这些值，或者AFC，以实现在显示器上看到的对象的阴影的特定的美学特征。伪散射函数可以用于单色散射和多个散射模型的毛发阴影。

7. 发明申请

US20110175904A1 PERCEPTUALLY-BASED COMPENSATION OF UNINTENDED LIGHT POLLUTION OF IMAGES FOR PROJECTION DISPLAY SYSTEMS 有权
标题翻译：用于投影显示系统的图像的意外光污染的基于概率的补偿
公开(公告)号：US20110175904A1
公开(公告)日：2011-07-21
申请号：US12828137
申请日：2010-06-30
申请人： Jeroen van Baar , Steven Poulakos , Rasmus Tamstorf , Markus Gross
发明人： Jeroen van Baar , Steven Poulakos , Rasmus Tamstorf , Markus Gross
IPC分类号： G06T13/20 , G06T15/00
CPC分类号： H04N13/122 , G09G3/003 , G09G2320/0285
摘要： Where images are displayed such that unintended light is also included and that light cannot be fully subtracted from the displayed image, an image processor compensates by compensating for the remaining light using perceptual models. In some cases, the perceptual model includes a plurality of user sensitivities and computation is performed, at least in part, based on expected user sensitivity to light pollution in portions of the images. The perceptual model might include a contrast sensitivity function, threshold-vs-intensity, saliency prediction and visual masking. The model might include artist indications of view attention. A light pollution likelihood map might be used to reduce the amount of computation needed, using a likelihood measure to determine an amount of computation to perform.
摘要翻译：在显示图像的情况下，还包括非预期的光，并且不能从显示的图像中完全减去光，图像处理器通过使用感知模型补偿剩余光来补偿。在一些情况下，感知模型包括多个用户敏感度，并且至少部分地基于图像的一部分中对光污染的预期用户敏感度来执行计算。感知模型可能包括对比敏感度函数，阈值vs强度，显着性预测和视觉掩蔽。该模型可能包括观众关注的艺术家指示。可以使用光污染可能性图来减少所需的计算量，使用似然度量来确定要执行的计算量。

8. 发明申请

US20100211368A1 METHODS, SYSTEMS AND MEDIA FOR SIMULATING CONTACT SCENARIOS 有权
标题翻译：用于模拟联系人情景的方法，系统和媒体
公开(公告)号：US20100211368A1
公开(公告)日：2010-08-19
申请号：US12707492
申请日：2010-02-17
申请人： Eitan Grinspun , David Harmon , Rasmus Tamstorf , Paul E. Vouga
发明人： Eitan Grinspun , David Harmon , Rasmus Tamstorf , Paul E. Vouga
IPC分类号： G06G7/48
CPC分类号： G06F17/5009 , G06F17/12 , G06F17/50 , G06F17/5018 , G06F2217/16
摘要： Embodiments of the invention provide methods enabling reliable simulation of objects in contact scenarios. Embodiments of the invention utilize methods providing three parameter-independent guarantees. According to embodiments of the invention, simulations of well-posed problems: have no interpenetrations; obey causality, momentum and energy conservation laws; and complete in finite time.
摘要翻译：本发明的实施例提供了能够在接触情况下可靠地模拟对象的方法。本发明的实施例利用提供三个独立于参数的保证的方法。根据本发明的实施例，精心制作的问题的模拟：没有互穿; 服从因果关系，动量和节能法; 并在有限的时间内完成。

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