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1. 发明申请

US20150379761A1 TECHNIQUES FOR REDUCED PIXEL SHADING 有权
标题翻译：减少像素着色的技术
公开(公告)号：US20150379761A1
公开(公告)日：2015-12-31
申请号：US14319472
申请日：2014-06-30
申请人： Gabor Liktor , Marco Salvi , Karthik Vaidyanathan
发明人： Gabor Liktor , Marco Salvi , Karthik Vaidyanathan
IPC分类号： G06T15/20 , G06T15/80 , G06T11/00 , G06T17/10
CPC分类号： G06T15/80 , G06T11/40 , G06T15/30
摘要： Various embodiments are generally directed to techniques for reducing processing demands of shading primitives in rendering a 2D screen image from a 3D model. A device includes a clipping component to clip a visible primitive of a 2D screen image derived from of a 3D model within a first area of the screen image covered by a shading pixel to form a polygon representing an intersection of the first area and the visible primitive; a first interpolation component to interpolate at least one attribute of vertices of the visible primitive to each vertex of the polygon; and a second interpolation component to interpolate color values of the vertices of the polygon to a point within a second area covered by a screen pixel of the screen image, the second area smaller than the first area and at least partly coinciding with the first area. Other embodiments are described and claimed.
摘要翻译：各种实施例通常涉及用于在从3D模型渲染2D屏幕图像时减少着色原语的处理需求的技术。一种设备包括剪切部件，用于剪切由遮蔽像素覆盖的屏幕图像的第一区域内由3D模型导出的2D屏幕图像的可见原始图形，以形成表示第一区域和可见原始图像的交点的多边形 ; 将所述可见原语的顶点的至少一个属性的内插内插到所述多边形的每个顶点的第一插值部件; 以及第二内插分量，以将多边形的顶点的颜色值内插到由屏幕图像的屏幕像素覆盖的第二区域内的点，第二区域小于第一区域，并且至少部分地与第一区域重合。描述和要求保护其他实施例。

2. 发明申请

US20150178983A1 Variable Shading 有权
标题翻译：可变阴影
公开(公告)号：US20150178983A1
公开(公告)日：2015-06-25
申请号：US14133757
申请日：2013-12-19
申请人： Tomas G. Akenine-Moller , Karthik Vaidyanathan , Marco Salvi , Robert M. Toth , Aaron Lefohn
发明人： Tomas G. Akenine-Moller , Karthik Vaidyanathan , Marco Salvi , Robert M. Toth , Aaron Lefohn
IPC分类号： G06T15/80
CPC分类号： G06T15/80 , G06T15/005 , G06T2210/52
摘要： In some embodiments, a given frame or picture may have different shading rates. In one embodiment in some areas of the frame or picture the shading rate may be less than once per pixel and in other places it may be once per pixel. An algorithm may be used to determine how the shading rate changes across the frame.
摘要翻译：在一些实施例中，给定的帧或图片可以具有不同的着色速率。在一个实施例中，在帧或图像的某些区域中，阴影率可以小于每像素一次，而在其它位置，每个像素可以是一次。可以使用算法来确定阴影效率如何在整个帧上变化。

3. 发明申请

US20170287203A1 Reduced Precision Ray Traversal with Plane Reuse 有权
公开(公告)号：US20170287203A1
公开(公告)日：2017-10-05
申请号：US15182694
申请日：2016-06-15
申请人： Karthik Vaidyanathan , Marco Salvi
发明人： Karthik Vaidyanathan , Marco Salvi
IPC分类号： G06T15/06
CPC分类号： G06T15/06
摘要： A computation for a parent node may be reused in a child node in a reduced precision bounding volume hierarchy ray traversal for graphics processing.

4. 发明申请

US20150170345A1 Decoupled Shading Pipeline 有权
标题翻译：去耦阴影管道
公开(公告)号：US20150170345A1
公开(公告)日：2015-06-18
申请号：US14103951
申请日：2013-12-12
申请人： Karthik Vaidyanathan , Marco Salvi , Robert M. Toth
发明人： Karthik Vaidyanathan , Marco Salvi , Robert M. Toth
IPC分类号： G06T5/00
CPC分类号： G06T15/503 , G06T1/20 , G06T2200/12
摘要： In some embodiments, a given frame or picture may have different shading rates. In one embodiment in some areas of the frame or picture the shading rate may be less than once per pixel and in other places it may be once per pixel. Examples where the shading rate may be reduced include areas where there is motion and camera defocus, areas of peripheral blur, and in general, any case where the visibility is reduced anyway. The shading rate may be changed in a region, such as a shading quad, by changing the size of the region.
摘要翻译：在一些实施例中，给定的帧或图片可以具有不同的着色速率。在一个实施例中，在帧或图像的某些区域中，阴影率可以小于每像素一次，而在其它位置，每个像素可以是一次。可以减少阴影率的示例包括存在运动和照相机散焦的区域，外围模糊的区域，以及一般来说，任何可见度被降低的情况。通过改变区域的大小，可以在诸如阴影四边形的区域中改变阴影率。

5. 发明申请

US20150206340A1 Layered Reconstruction for Defocus and Motion Blur 有权
标题翻译：散焦和运动模糊的分层重建
公开(公告)号：US20150206340A1
公开(公告)日：2015-07-23
申请号：US14274958
申请日：2014-05-12
申请人： Carl J. Munkberg , Karthik Vaidyanathan , Jon N. Hasselgren , Franz P. Clarberg , Tomas G. Akenine-Moller , Marco Salvi
发明人： Carl J. Munkberg , Karthik Vaidyanathan , Jon N. Hasselgren , Franz P. Clarberg , Tomas G. Akenine-Moller , Marco Salvi
IPC分类号： G06T15/50 , G06T15/20 , G06T15/06 , G06T3/40 , G06T15/40
CPC分类号： G06T15/503 , G06T5/50 , G06T15/06 , G06T15/50 , G06T15/506 , G06T2200/21 , G06T2207/10052 , H04N5/23229
摘要： Real-time light field reconstruction for defocus blur may be used to handle the case of simultaneous defocus and motion blur. By carefully introducing a few approximations, a very efficient sheared reconstruction filter is derived, which produces high quality images even for a very low number of input samples in some embodiments. The algorithm may be temporally robust, and is about two orders of magnitude faster than previous work, making it suitable for both real-time rendering and as a post-processing pass for high quality rendering in some embodiments.
摘要翻译：用于散焦模糊的实时光场重建可用于处理同时散焦和运动模糊的情况。通过仔细地引入几个近似值，导出非常有效的剪切重建滤波器，即使在一些实施例中对于非常低数量的输入样本也可产生高质量图像。该算法可以在时间上是稳健的，并且比以前的工作快两个数量级，使得它在一些实施例中适合于实时渲染和用于高质量渲染的后处理通行。

6. 发明申请

US20140204111A1 LAYERED LIGHT FIELD RECONSTRUCTION FOR DEFOCUS BLUR 有权
标题翻译：用于偏光玻璃的层状光场重建
公开(公告)号：US20140204111A1
公开(公告)日：2014-07-24
申请号：US14156722
申请日：2014-01-16
申请人： Karthik Vaidyanathan , Marco Salvi , Carl Jacob Munkberg , Franz Petrik Clarberg
发明人： Karthik Vaidyanathan , Marco Salvi , Carl Jacob Munkberg , Franz Petrik Clarberg
IPC分类号： G06T5/00
CPC分类号： G02B27/0075 , G02B27/46 , G06T5/002 , G06T11/00 , G06T15/503 , G06T2200/21
摘要： An algorithm may reconstruct defocus blur from a sparsely sampled light field. Light field samples are generated, using stochastic rasterization or ray tracing as examples. Then the samples are partitioned into depth layers. These depth layers are filtered independently and then combined together, taking into account inter-layer visibility. Since each layer corresponds to a smaller depth range, it results in more effective reconstruction filters than previous approaches.
摘要翻译：算法可以从稀疏采样的光场重建散焦模糊。使用随机光栅化或光线跟踪作为示例生成光场样本。然后将样品分成深层。这些深度层被独立过滤，然后结合在一起，考虑到层间可视性。由于每个层对应于较小的深度范围，所以与先前的方法相比，其产生更有效的重构滤波器。

7. 发明申请

US20130257885A1 Low Power Centroid Determination and Texture Footprint Optimization For Decoupled Sampling Based Rendering Pipelines 审中-公开
标题翻译：基于解耦采样的渲染管道的低功率质心测定和纹理占用优化
公开(公告)号：US20130257885A1
公开(公告)日：2013-10-03
申请号：US13590490
申请日：2012-08-21
申请人： Karthik Vaidyanathan , Marco Salvi , Robert M. Toth , Aaron Lefohn
发明人： Karthik Vaidyanathan , Marco Salvi , Robert M. Toth , Aaron Lefohn
IPC分类号： G06T11/40
CPC分类号： G06T15/503 , G06T2210/12
摘要： The problem of generating high quality images with a rendering pipeline based on decoupled sampling may be addressed by generating non-extrapolated shading locations and by determining improved texture filtering footprints. This may be accomplished by performing shading at the center of a bounding box that bounds mapped shading samples.
摘要翻译：可以通过生成非外推阴影位置并通过确定改进的纹理过滤占位面积来解决利用基于去耦取样的渲染流水线生成高质量图像的问题。这可以通过在限制映射的阴影样本的边界框的中心处执行阴影来实现。

8. 发明申请

US20190244418A1 CONDITIONAL SHADER FOR GRAPHICS 审中-公开
公开(公告)号：US20190244418A1
公开(公告)日：2019-08-08
申请号：US16269270
申请日：2019-02-06
申请人： Prasoonkumar Surti , Karthik Vaidyanathan , Murali Ramadoss , Michael Apodaca , Abhishek Venkatesh , Devan Burke , Philip R. Laws , Subramaniam Maiyuran , Abhishek R. Appu , ElMoustapha Ould-Ahmed-Vall , Peter L. Doyle
发明人： Prasoonkumar Surti , Karthik Vaidyanathan , Murali Ramadoss , Michael Apodaca , Abhishek Venkatesh , Devan Burke , Philip R. Laws , Subramaniam Maiyuran , Abhishek R. Appu , ElMoustapha Ould-Ahmed-Vall , Peter L. Doyle
IPC分类号： G06T15/80 , G06F9/50 , G06T1/20 , G06T5/20
CPC分类号： G06T15/80 , G06F9/50 , G06F9/5011 , G06T1/20 , G06T5/20
摘要： An embodiment of a conditional shader apparatus may include a conditional pixel shader to determine if one or more pixels meet a shader condition, and a pixel regrouper communicatively coupled to the conditional pixel shader to regroup pixels based on whether the one or more pixels are determined to meet the shader condition. Another embodiment of a conditional shader apparatus may include a thread analyzer to determine if a set of threads meet a thread condition, and a conditional kernel loader communicatively coupled to the thread analyzer to load an appropriate kernel from a set of two or more kernels based on whether the set of threads are determined to meet the thread condition. Other embodiments are disclosed and claimed.

9. 发明授权

US08073085B1 Analog to digital converter bit width and gain controller for a wireless receiver 有权
标题翻译：用于无线接收器的模数转换器位宽和增益控制器
公开(公告)号：US08073085B1
公开(公告)日：2011-12-06
申请号：US11825832
申请日：2007-07-07
申请人： Karthik Vaidyanathan , Partha Sarathy Murali
发明人： Karthik Vaidyanathan , Partha Sarathy Murali
IPC分类号： H04L27/08
CPC分类号： H04L27/2647 , H04L27/2613
摘要： A gain controller for a wireless communication system sets the receiver gain during the initial time duration of a preamble, and for each subsequent symbol computes a new gain value, which is applied at the end of each symbol. An analog to digital converter resolution controller sets the resolution of the ADC to a high resolution during a preamble interval and a first symbol interval, and to a comparatively lower resolution thereafter until the end of the frame. When a new zone is entered, the first symbol of the new zone is sampled at a higher resolution than the subsequent symbols.
摘要翻译：用于无线通信系统的增益控制器在前导码的初始持续时间期间设置接收机增益，并且对于每个后续符号计算在每个符号的末尾应用的新的增益值。模数转换器分辨率控制器在前导码间隔和第一符号间隔期间将ADC的分辨率设置为高分辨率，并且之后到相对较低的分辨率直到帧结束。当输入新区域时，新区域的第一个符号以比后续符号更高的分辨率进行采样。

10. 发明申请

US20100138632A1 Programmable CORDIC Processor with Stage Re-Use 有权
标题翻译：可编程CORDIC处理器，具有舞台重复使用
公开(公告)号：US20100138632A1
公开(公告)日：2010-06-03
申请号：US12327395
申请日：2008-12-03
申请人： Phanimithra Gangalakurti , Karthik Vaidyanathan , Partha Sarathy Murali , InduShekhar Ayyalasomayajula
发明人： Phanimithra Gangalakurti , Karthik Vaidyanathan , Partha Sarathy Murali , InduShekhar Ayyalasomayajula
IPC分类号： G06F15/76 , G06F7/00
CPC分类号： G06F7/4818
摘要： A CORDIC processor has a plurality of stages, each of the stages having a X input, Y input, a sign input, a sign output, an X output, a Y output, a mode control input having a ROTATE or VECTOR value, and a stage number k input, each CORDIC stage having a first shift generating an output by shifting the Y input k times, a second shift generating an output by shifting X input k times, a multiplexer having an output coupled to the sign input when the mode control input is ROTATE and to the sign of the Y input when the mode input is VECTOR, a first multiplier forming the product of the first shift output and the multiplexer output, a second multiplier forming the product of the second shift output and an inverted the multiplexer output, a first adder forming the X output from the sum of the first multiplier output and the X input, and a second adder forming the Y output from the sum of the second multiplier output and the Y input.
摘要翻译： CORDIC处理器具有多个级，每个级具有X输入，Y输入，符号输入，符号输出，X输出，Y输出，具有ROTATE或VECTOR值的模式控制输入，以及每个CORDIC级具有通过移位Y输入k次而产生输出的第一移位，通过移位X个输入k次来产生输出的第二移位;当模式控制时，具有耦合到符号输入的输出的多路复用器当模式输入为VECTOR时，输入为ROTATE和Y输入的符号，形成第一移位输出和多路复用器输出的乘积的第一乘法器，形成第二移位输出和反相多路复用器的乘积的第二乘法器输出，从第一乘法器输出和X输入的和形成X输出的第一加法器和从第二乘法器输出和Y输入的和形成Y输出的第二加法器。

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