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1. 发明授权

US09098503B1 Subselection of portions of an image review sequence using spatial or other selectors 有权
标题翻译：使用空间或其他选择器对图像查看序列的部分进行子选择
公开(公告)号：US09098503B1
公开(公告)日：2015-08-04
申请号：US13267765
申请日：2011-10-06
申请人： Michael B. Johnson , Yu-Chung Chen , Apurva Shah , Michael Kass
发明人： Michael B. Johnson , Yu-Chung Chen , Apurva Shah , Michael Kass
IPC分类号： G09G5/00 , G06F17/20 , G06F17/30
CPC分类号： G06F17/30017 , G06F17/30038 , G06F17/30064 , G06F17/30749 , G06F17/30817
摘要： An image review system presents an image to a reviewer and records reviewer feedback, including reviewer position indicators relating to portions of the image and reviewer commentary data, which can be audio, visual, textual, etc. The reviewer position indicators and reviewer commentary data each have a time component, corresponding to when the reviewer indicated a position on the image and when the reviewer provided the commentary, respectively. During playback, the viewer can select a subset of the image of interest and get a playback of the reviewer commentary data that corresponds to the times represented by the reviewer position indicators that fall within the selected subset of the image. The reviewer position indicators can be collectively indicated by a heat map that, when laid over the image, indicates which portions of the image are commented on and how much time is spent there.
摘要翻译：图像审查系统向审阅者呈现图像，并记录审阅者反馈，包括与图像的部分和评论者评论数据相关的审阅者位置指示器，其可以是音频，视觉，文本等。审查者位置指示器和评论者评论数据具有时间分量，对应于评论者何时在图像上指示位置，以及评论者何时分别提供评论。在播放期间，观众可以选择感兴趣的图像的子集，并且获得对应于落在所选择的图像子集内的审阅者位置指示符表示的时间的评论者评论数据的回放。审查者位置指示器可以由热图集体指示，当放置在图像上时，指示图像的哪些部分被评论以及在那里花费了多少时间。

2. 发明授权

US09208610B2 Alternate scene representations for optimizing rendering of computer graphics 有权
标题翻译：用于优化计算机图形渲染的备用场景表示
公开(公告)号：US09208610B2
公开(公告)日：2015-12-08
申请号：US13194171
申请日：2011-07-29
申请人： Jacob Porter Merrell , Apurva Shah
发明人： Jacob Porter Merrell , Apurva Shah
IPC分类号： G06T15/06 , G06T17/00
CPC分类号： G06T17/005 , G06T15/06 , G06T2210/36 , G06T2210/61
摘要： Shading attributes for scene geometry are predetermined and cached in one or more alternate scene representations. Lighting, shading, geometric, and/or other attributes of the scene may be precalculated and stored for at least one of the scene representations at an appropriate level of detail. Rendering performance is improved generally and for a variety of visual effects by selecting between alternate scene representations during rendering. A renderer selects one or more of the alternate scene representations for each of the samples based on the size of its filter area relative to the feature sizes or other attributes of the alternate scene representations. If two or more alternate scene representations are selected, the sampled values from these scene representations may be blended. The selection of scene representations may vary on a per-sample basis and thus different scene representations may be used for different samples within the same image.
摘要翻译：场景几何的着色属性是预定的并且缓存在一个或多个替代场景表示中。场景的照明，阴影，几何和/或其他属性可以在适当的细节级别对于至少一个场景表示进行预先计算和存储。通常在渲染过程中通过选择替代场景表示之间的渲染性能得到改善，并可以获得各种视觉效果。渲染器基于相对于替代场景表示的特征尺寸或其他属性的滤波器区域的大小，为每个样本选择一个或多个替代场景表示。如果选择两个或更多个替代场景表示，则可以混合来自这些场景表示的采样值。场景表示的选择可以在每个样本的基础上变化，并且因此不同的场景表示可以用于同一图像内的不同样本。

3. 发明授权

US08842913B2 Saturation varying color space 有权
标题翻译：饱和度变化色彩空间
公开(公告)号：US08842913B2
公开(公告)日：2014-09-23
申请号：US13741501
申请日：2013-01-15
申请人： Apurva Shah , Sharon Calahan
发明人： Apurva Shah , Sharon Calahan
IPC分类号： G06K9/00 , G06K9/40 , G06T11/00 , G06T5/00
CPC分类号： G06T11/001 , G06T5/001 , G06T5/009
摘要： A first color component of a pixel or scene entity is modified using a color correction curve defined at least partly by a second color component of this pixel or entity. Each pixel or entity has its own separate color correction curve, independent of the color correction curves of other pixels or entities. The saturation value of a pixel or scene entity may be modified based on its luminance value. The luminance value determines a saturation gamma function curve, mapping the original saturation value of a pixel or entity to a new saturation value. The unilluminated color of a pixel or of an illuminated entity in a scene being rendered may also be taken into account. This output color may be stored in the appropriate pixel of an image or combined with colors from other portions of the scene being rendered.
摘要翻译：使用至少部分地由该像素或实体的第二颜色分量定义的颜色校正曲线来修改像素或场景实体的第一颜色分量。每个像素或实体都有其独立的颜色校正曲线，与其他像素或实体的颜色校正曲线无关。可以基于其亮度值来修改像素或场景实体的饱和度值。亮度值确定饱和度伽玛函数曲线，将像素或实体的原始饱和度值映射到新的饱和度值。也可以考虑正在渲染的场景中的像素或被照亮实体的未发光颜色。该输出颜色可以存储在图像的适当像素中，或者与被渲染的场景的其他部分的颜色组合。

4. 发明公开

US20230145605A1 SPATIAL OPTIMIZATION FOR AUDIO PACKET TRANSFER IN A METAVERSE 审中-公开
公开(公告)号：US20230145605A1
公开(公告)日：2023-05-11
申请号：US17983147
申请日：2022-11-08
申请人： Apurva Shah , Roberto De Ioris
发明人： Apurva Shah , Roberto De Ioris
IPC分类号： H04L65/75 , G10L21/0316
CPC分类号： H04L65/75 , G10L21/0316
摘要： A computer-implemented method includes receiving audio packets associated with a first client device, where the audio packets each include an audio capture waveform, a timestamp, and a digital entity identification (ID). The method further includes determining, based on the digital entity ID, a position of a first digital entity in a metaverse. The method further includes determining a subset of other digital entities in a metaverse that are within an audio area of the first digital entity based on (a) a falloff distance between the first digital entity and each of the other digital entities and (b) a direction of audio propagation between the first digital entity and each of the other digital entities. The method further includes transmitting the audio packets to second client devices associated with the subset of other digital entities in the metaverse.

5. 发明授权

US09639975B1 System and method for generating shadows 有权
公开(公告)号：US09639975B1
公开(公告)日：2017-05-02
申请号：US12909792
申请日：2010-10-21
申请人： Christopher M. King , Apurva Shah
发明人： Christopher M. King , Apurva Shah
IPC分类号： G06T15/60 , G06T15/06 , G06T15/00 , G06T15/04
CPC分类号： G06T15/60 , G06T15/00 , G06T15/04 , G06T15/06 , G06T2215/12
摘要： A computer-implemented method for generating a shadow in a graphics scene. The method includes casting a ray having a finite length associated with a point on a surface of an object in the graphics scene towards a light source; determining whether the ray intersects any other objects in the graphics scene; and generating a shadow value associated with the point on the surface of the object based on a combination of geometric scene information obtained as a result of determining whether the ray intersects any other objects in the graphics scene and an image-based shadow map value.

6. 发明授权

US08396290B1 Saturation varying color space 失效
标题翻译：饱和度变化色彩空间
公开(公告)号：US08396290B1
公开(公告)日：2013-03-12
申请号：US12044881
申请日：2008-03-07
申请人： Apurva Shah , Sharon Calahan
发明人： Apurva Shah , Sharon Calahan
IPC分类号： G06K9/00 , G06K9/40
CPC分类号： G06T11/001 , G06T5/001 , G06T5/009
摘要： A first color component of a pixel or scene entity is modified using a color correction curve defined at least partly by a second color component of this pixel or entity. Each pixel or entity has its own separate color correction curve, independent of the color correction curves of other pixels or entities. The saturation value of a pixel or scene entity may be modified based on its luminance value. The luminance value determines a saturation gamma function curve, mapping the original saturation value of a pixel or entity to a new saturation value. The unilluminated color of a pixel in a scene being rendered may also be taken into account. This output color may be stored in the appropriate pixel of an image or combined with colors from other portions of the scene being rendered.
摘要翻译：使用至少部分地由该像素或实体的第二颜色分量定义的颜色校正曲线来修改像素或场景实体的第一颜色分量。每个像素或实体都有其独立的颜色校正曲线，与其他像素或实体的颜色校正曲线无关。可以基于其亮度值来修改像素或场景实体的饱和度值。亮度值确定饱和度伽玛函数曲线，将像素或实体的原始饱和度值映射到新的饱和度值。也可以考虑正在渲染的场景中的像素的未照亮的颜色。该输出颜色可以存储在图像的适当像素中，或者与被渲染的场景的其他部分的颜色组合。

7. 发明授权

US08942476B1 Saturation varying and lighting independent color color control for computer graphics 有权
标题翻译：用于计算机图形的饱和度变化和照明独立颜色控制
公开(公告)号：US08942476B1
公开(公告)日：2015-01-27
申请号：US12952212
申请日：2010-11-23
申请人： Sudeep Rangaswamy , Apurva Shah , Sharon Calahan
发明人： Sudeep Rangaswamy , Apurva Shah , Sharon Calahan
IPC分类号： G06K9/00 , G06K9/40
CPC分类号： G06T11/001 , G06K9/4652 , G06T7/90
摘要： Color contributions from one or more light sources to scene entities are separated from the scene entities' respective unilluminated colors. This enables the color contributions of light sources as well as scene entities' unilluminated colors to be adjusted or modified independently of each other. Light source color contributions may be combined by groups of light sources, by light source to scene entity interaction, and/or by light source type. Adjustments to light source color contributions and/or unilluminated colors may be performed using a saturation varying color space or general tone mapping techniques. The light source color contributions and unilluminated colors of scene entities may be employed in contexts including an image processing application and within or as a shader of a renderer.
摘要翻译：从一个或多个光源到场景实体的颜色贡献与场景实体的各自的未照亮颜色分离。这使得光源的颜色贡献以及场景实体的未照亮颜色能够彼此独立地被调整或修改。光源颜色贡献可以通过光源组，光源与场景实体交互，和/或通过光源类型组合。可以使用饱和度变化颜色空间或通用色调映射技术来执行对光源颜色贡献和/或未照亮颜色的调整。场景实体的光源颜色贡献和未照亮的颜色可以在包括图像处理应用程序的上下文中使用，并且可以在渲染器的内部或作为渲染器的着色器中使用。

8. 发明申请

US20130027417A1 Alternate Scene Representations for Optimizing Rendering of Computer Graphics 有权
标题翻译：用于优化计算机图形渲染的备用场景表示
公开(公告)号：US20130027417A1
公开(公告)日：2013-01-31
申请号：US13194171
申请日：2011-07-29
申请人： Jacob Porter Merrell , Apurva Shah
发明人： Jacob Porter Merrell , Apurva Shah
IPC分类号： G09G5/00
CPC分类号： G06T17/005 , G06T15/06 , G06T2210/36 , G06T2210/61
摘要： Shading attributes for scene geometry are predetermined and cached in one or more alternate scene representations. Lighting, shading, geometric, and/or other attributes of the scene may be precalculated and stored for at least one of the scene representations at an appropriate level of detail. Rendering performance is improved generally and for a variety of visual effects by selecting between alternate scene representations during rendering. A renderer selects one or more of the alternate scene representations for each of the samples based on the size of its filter area relative to the feature sizes or other attributes of the alternate scene representations. If two or more alternate scene representations are selected, the sampled values from these scene representations may be blended. The selection of scene representations may vary on a per-sample basis and thus different scene representations may be used for different samples within the same image.
摘要翻译：场景几何的着色属性是预定的并且缓存在一个或多个替代场景表示中。场景的照明，阴影，几何和/或其他属性可以在适当的细节级别对于至少一个场景表示进行预先计算和存储。通常在渲染过程中通过选择替代场景表示之间的渲染性能得到改善，并可以获得各种视觉效果。渲染器基于相对于替代场景表示的特征尺寸或其他属性的滤波器区域的大小，为每个样本选择一个或多个替代场景表示。如果选择两个或更多个替代场景表示，则可以混合来自这些场景表示的采样值。场景表示的选择可以在每个样本的基础上变化，并且因此不同的场景表示可以用于同一图像内的不同样本。

9. 发明授权

US08010330B1 Extracting temporally coherent surfaces from particle systems 有权
标题翻译：从粒子系统中提取时间上相干的表面
公开(公告)号：US08010330B1
公开(公告)日：2011-08-30
申请号：US12044913
申请日：2008-03-07
申请人： Chen Shen , Apurva Shah
发明人： Chen Shen , Apurva Shah
IPC分类号： G06G7/50 , G06G7/48
CPC分类号： G06T13/60 , G06T2210/56
摘要： The space including a particle system is discretized into volume elements. Signed distance values at each time and velocity values at a time are assigned to volume elements based on the particle system. The each volume element's position at the current time is extrapolated to an additional position at each additional time based on its respective velocity value. A temporally coherent signed distance value for each volume element is determined from its signed distance value and the signed distance values at the associated additional position at each additional time. A surface extracted from the temporally coherent signed distance values will be temporally coherent over the interval including the current time and the one or more additional times. Arbitrary surface properties may also be associated with volume elements and temporally coherent surface property values may be determined for each volume element using its respective velocity value in a similar manner.
摘要翻译：包括粒子系统的空间被离散成体积元素。每个时间的签名距离值和一次的速度值基于粒子系统分配给体积元素。每个音量元件在当前时间的位置根据其各自的速度值在每个额外的时间外推到一个附加的位置。每个音量元素的时间相干有符号距离值由其带符号的距离值和每个附加时间的相关附加位置处的带符号距离值确定。从时间上相干的有符号距离值提取的表面将在包括当前时间和一个或多个附加次数的间隔上在时间上相干。任意表面性质也可能与体积元素相关联，并且可以使用其相似的速度值来确定每个体积元素的时间相干表面特性值。

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