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公开(公告)号：US20240046687A1
公开(公告)日：2024-02-08
申请号：US18186000
申请日：2023-03-17
Applicant: NVIDIA CORPORATION
Inventor： Koki NAGANO , David LUEBKE
CPC classification number: G06V40/10 , G06T13/40 , G06T13/205 , G06T13/80 , G06V10/40 , G06V10/751 , G06V10/761 , G06F21/31
Abstract: Techniques are disclosed herein for verifying user identities. The techniques include generating one or more features based on at least one of video data or audio data generated during a computer-mediated interaction between a plurality of users in which a first user included in the plurality of users is represented by an avatar, and verifying an identity of the first user based on the one or more features that are generated and one or more features associated with the first user.
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公开(公告)号：US20140267264A1
公开(公告)日：2014-09-18
申请号：US13830106
申请日：2013-03-14
Applicant: NVIDIA CORPORATION
Inventor： Cyril CRASSIN , Yury Y. URALSKY , Eric ENDERTON , Eric B. LUM , Jerome F. DULUK, JR. , Henry Packard MORETON , David LUEBKE
IPC: G06T15/08
CPC classification number: G06T15/08
Abstract: One embodiment of the present invention sets forth a technique for performing voxelization. The technique involves identifying a voxel that is intersected by a first graphics primitive that has a front side and a back side and selecting a plurality of sample points within the voxel. The technique further involves determining, for each sample point included in the plurality of sample points, whether the sample point is located on the front side of the first graphics primitive or on the back side of the first graphics primitive. Finally, the technique involves storing, for at least a first sample point included in the plurality of sample points, a first result in a voxel mask reflecting whether the first sample point is located on the front side of the first graphics primitive or on the back side of the first graphics primitive.
Abstract translation: 本发明的一个实施例提出了一种用于执行体素化的技术。 该技术涉及识别由具有前侧和后侧的第一图形基元相交并且在体素内选择多个采样点的体素。 该技术还涉及对于包括在多个采样点中的每个采样点，确定采样点是位于第一图形原语的前侧还是位于第一图形基元的背面。 最后，该技术涉及对于至少包括在多个采样点中的第一采样点存储体素掩模中的第一结果，反映第一采样点是第一采样点是位于第一图形原语的前侧还是位于后面 侧面的第一个图形原语。
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公开(公告)号：US20140267266A1
公开(公告)日：2014-09-18
申请号：US13830173
申请日：2013-03-14
Applicant: NVIDIA CORPORATION
Inventor： Cyril CRASSIN , Yury Y. URALSKY , Eric ENDERTON , Eric B. LUM , Jerome F. DULUK, JR. , Henry Packard MORETON , David LUEBKE
IPC: G06T15/08
Abstract: One embodiment of the present invention sets forth a technique for performing voxelization. The technique involves determining that a voxel is intersected by a first graphics primitive that has a front side and a back side and selecting one or more reference points within the voxel. The technique further involves, for each reference point, determining a distance from the reference point to the first graphics primitive and storing a first scalar value in an array based on the distance. The sign of the first scalar value reflects whether the reference point is located on the front side of the first graphics primitive or on the back side of the first graphics primitive.
Abstract translation: 本发明的一个实施例提出了一种用于执行体素化的技术。 该技术涉及确定体素与具有前侧和后侧的第一图形原语相交并且选择体素内的一个或多个参考点。 该技术还涉及对于每个参考点，确定从参考点到第一图形基元的距离，并且基于该距离将第一标量值存储在阵列中。 第一标量值的符号反映参考点是位于第一图形图元的前侧还是位于第一图形基元的背面。
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公开(公告)号：US20140267265A1
公开(公告)日：2014-09-18
申请号：US13830142
申请日：2013-03-14
Applicant: NVIDIA CORPORATION
Inventor： Cyril CRASSIN , Yury Y. URALSKY , Eric ENDERTON , Eric B. LUM , Jerome F. DULUK, JR. , Henry Packard MORETON , David LUEBKE
IPC: G06T15/08
CPC classification number: G06T15/08
Abstract: One embodiment of the present invention sets forth a technique for performing voxelization. The technique involves determining that a first graphics primitive intersects a voxel and calculating a first set of coefficients associated with a first plane defined by the intersection of the first graphics primitive and the voxel. The technique further involves determining that a second graphics primitive intersects the voxel and calculating a second set of coefficients associated with a second plane defined by the intersection of the second graphics primitive and the voxel. The technique further involves calculating a third set of coefficients associated with a third surface based on the first set of coefficients and the second set of coefficients. The technique further involves calculating at least one of an amount of the voxel that is located on the back side of the third surface and an occlusion value based on the third set of coefficients.
Abstract translation: 本发明的一个实施例提出了一种用于执行体素化的技术。 该技术涉及确定第一图形基元与体元相交并且计算与由第一图形图元和体元的交点确定的第一平面相关联的第一组系数。 该技术还包括确定第二图形原语与体素相交并且计算与由第二图形图元和体元的交点定义的第二平面相关联的第二组系数。 该技术还涉及基于第一组系数和第二组系数来计算与第三表面相关联的第三组系数。 该技术还包括基于第三组系数来计算位于第三表面的背侧的体素的量中的至少一个和闭塞值。
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公开(公告)号：US20140168228A1
公开(公告)日：2014-06-19
申请号：US13714287
申请日：2012-12-13
Applicant: NVIDIA CORPORATION
Inventor： David LUEBKE , Timo AILA , Jacopo PANTALEONI , David TARJAN
IPC: G06F9/38
CPC classification number: G06F9/5066 , G06T15/06
Abstract: Techniques are disclosed for tracing a ray within a parallel processing unit. A first thread receives a ray or a ray segment for tracing and identifies a first node within an acceleration structure associated with the ray, where the first node is associated with a volume of space traversed by the ray. The thread identifies the child nodes of the first node, where each child node is associated with a different sub-volume of space, and each sub-volume is associated with a corresponding ray segment. The thread determines that two or more nodes are associated with sub-volumes of space that intersect the ray segment. The thread selects one of these nodes for processing by the first thread and another for processing by a second thread. One advantage of the disclosed technique is that the threads in a thread group perform ray tracing more efficiently in that idle time is reduced.
Abstract translation: 公开了用于跟踪并行处理单元内的射线的技术。 第一线程接收用于跟踪的射线或射线段，并识别与射线相关联的加速结构内的第一节点，其中第一节点与由射线穿过的空间体积相关联。 该线程标识第一节点的子节点，其中每个子节点与不同的子体积的空间相关联，并且每个子卷与相应的射线段相关联。 线程确定两个或多个节点与与射线段相交的空间的子卷相关联。 线程选择其中一个节点进行第一个线程处理，另一个线程由第二个线程进行处理。 所公开技术的一个优点是螺纹组中的螺纹更有效地执行光线追踪，从而减少了空闲时间。
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Patent Agency Ranking
公开(公告)号：US20240370536A1
公开(公告)日：2024-11-07
申请号：US18648158
申请日：2024-04-26
Applicant: NVIDIA CORPORATION
Inventor： Ekta PRASHNANI , Orazio GALLO , Shalini DE MELLO , Koki NAGANO , David LUEBKE
Abstract: Techniques are disclosed herein for authenticating users. The techniques include generating a first fingerprint that represents one or more motions of a first avatar that is driven by a first user, and determining an identity of the first user based on the first fingerprint and a second fingerprint associated with the first user.
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公开(公告)号：US20240103437A1
公开(公告)日：2024-03-28
申请号：US18313214
申请日：2023-05-05
Applicant: NVIDIA CORPORATION
Inventor： Jonghyun KIM , Ward LOPES , David LUEBKE
CPC classification number: G03H1/0005 , G03H1/12 , G03H2001/0088 , G03H2001/0212
Abstract: One embodiment of a display system includes one or more light sources, one or more spatial light modulators, and a plurality of scatterers. One embodiment of a method for displaying content includes computing at least one of a phase or an amplitude modulation associated with two-dimensional (2D) or three-dimensional (3D) content, and causing one or more spatial light modulators to modulate light based on the at least one of a phase or an amplitude modulation to generate modulated light, where the modulated light is scattered by a plurality of scatterers.
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公开(公告)号：US20150228226A1
公开(公告)日：2015-08-13
申请号：US14180001
申请日：2014-02-13
Applicant: NVIDIA Corporation
Inventor： David LUEBKE , Douglas LANMAN
IPC: G09G3/34 , G02F1/133 , G09G3/36 , G02F1/1335
CPC classification number: G09G3/3406 , G02F1/133603 , G02F1/133606 , G02F2001/133607 , G09G2320/028 , G09G2320/068 , G09G2330/021 , G09G2330/022 , G09G2354/00
Abstract: A method for angularly varying backlight illumination of a backlit display device. The method comprises determining at least one subject position and angularly varying a backlight illumination of a displayed image. The backlight illumination is angularly varied based upon and directed towards a determined position of the at least one subject. The angularly varied backlight illumination of the displayed image reduces the backlight illumination of the displayed image that is visible outside of the determined position of the at least one subject.
Abstract translation: 用于背光照明显示装置的角度变化的背光照明的方法。 该方法包括确定至少一个被摄体位置并且角度地改变所显示图像的背光照明。 背光照明基于并指向至少一个对象的确定位置而有角度地变化。 显示图像的角度变化的背光照明降低了在至少一个被摄体的确定位置之外可见的显示图像的背光照明。
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公开(公告)号：US20140375659A1
公开(公告)日：2014-12-25
申请号：US14270252
申请日：2014-05-05
Applicant: NVIDIA Corporation
Inventor： Morgan MCGUIRE , David LUEBKE , Cyril CRASSIN , Peter-Pike SLOAN , Peter SHIRLEY , Brent OSTER , Christopher WYMAN , Michael MARA
IPC: G09G5/00
Abstract: The present invention facilitates efficient and effective image processing. A network can comprise: a first system configured to perform a first portion of lighting calculations for an image and combing results of the first portion of lighting calculations for the image with results of a second portion of lighting calculations; and a second system configured to perform the second portion of lighting calculations and forward the results of the second portion of the lighting calculations to the first system. The first and second portion of lighting calculations can be associated with indirect lighting calculations and direct lighting calculations respectively. The first system can be a client in a local location and the second system can be a server in a remote location (e.g., a cloud computing environment). The first system and second system can be in a cloud and a video is transmitted to a local system.
Abstract translation: 本发明有助于有效和有效的图像处理。 网络可以包括：第一系统，被配置为执行图像的照明计算的第一部分，并且将图像的第一部分照明计算的结果与照明计算的第二部分的结果相结合; 以及第二系统，被配置为执行照明计算的第二部分并将照明计算的第二部分的结果转发给第一系统。 照明计算的第一部分和第二部分可以分别与间接照明计算和直接照明计算相关联。 第一系统可以是本地位置的客户端，并且第二系统可以是远程位置（例如，云计算环境）中的服务器。 第一个系统和第二个系统可以在一个云端，一个视频传输到本地系统。
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公开(公告)号：US20140168238A1
公开(公告)日：2014-06-19
申请号：US13714284
申请日：2012-12-13
Applicant: NVIDIA CORPORATION
Inventor： David LUEBKE , Timo AILA , Jacopo PANTALEONI , David TARJAN
IPC: G06T15/06
CPC classification number: G06T15/06 , G06T17/005 , G06T2210/52
Abstract: Techniques are disclosed for tracing a ray within a parallel processing unit. A first thread receives a ray or a ray segment for tracing and identifies a first node within an acceleration structure associated with the ray, where the first node is associated with a volume of space traversed by the ray. The thread identifies the child nodes of the first node, where each child node is associated with a different sub-volume of space, and each sub-volume is associated with a corresponding ray segment. The thread determines that two or more nodes are associated with sub-volumes of space that intersect the ray segment. The thread selects one of these nodes for processing by the first thread and another for processing by a second thread. One advantage of the disclosed technique is that the threads in a thread group perform ray tracing more efficiently in that idle time is reduced.
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