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1. 发明授权

US08462173B2 System and method for simulation of paint deposition using a pickup and reservoir model 有权
标题翻译：使用拾取和储层模型模拟油漆沉积的系统和方法
公开(公告)号：US08462173B2
公开(公告)日：2013-06-11
申请号：US12862879
申请日：2010-08-25
申请人： Stephen J. DiVerdi , Sunil Hadap , Aravind Krishnaswamy
发明人： Stephen J. DiVerdi , Sunil Hadap , Aravind Krishnaswamy
IPC分类号： G09G5/02 , G09G5/00
CPC分类号： G06T11/40
摘要： Systems, methods, and apparatus for simulating natural media painting in a digital painting application (or painting simulation module) using a two-layer model of a virtual paint brush may more accurately simulate real world painting techniques than conventional painting simulations. A two-layer brush model may include a reservoir buffer and a pickup buffer to separately represent the paint stored in the belly of a paint brush tip and paint that has been picked up on the surface of the brush tip during a brush stoke, respectively. The two-layer brush model may also include methods that automatically control how virtual paint moves between these layers and a digital canvas. In simulations that employ this two-layer brush model, virtual paint may be deposited on the digital canvas directly from both of the buffers. The amount of paint deposited from each buffer (and/or the ratio of the amounts) may be configurable by a user.
摘要翻译：使用虚拟油漆刷的两层模型在数字绘画应用（或绘画模拟模块）中模拟自然媒体绘画的系统，方法和装置可以比常规绘画模拟更准确地模拟真实世界的绘画技术。双层刷子模型可以包括储存器缓冲器和拾取缓冲器，以分别表示在刷子刷头期间被存储在刷子尖端的腹部中的涂料和在刷头表面上被拾取的涂料。双层刷子模型还可以包括自动控制虚拟绘图在这些层之间移动以及数字画布的方法。在使用这种双层刷子模型的模拟中，虚拟油漆可以直接从两个缓冲器沉积在数字画布上。从每个缓冲液沉积的油漆量（和/或量的比例）可由用户配置。

2. 发明申请

US20130120324A1 System and Method for Simulating Stiff Bristle Brushes Using Stiffness-Height Parameterization 有权
标题翻译：使用刚度 - 高度参数化模拟刚性刷毛刷的系统和方法
公开(公告)号：US20130120324A1
公开(公告)日：2013-05-16
申请号：US12790599
申请日：2010-05-28
申请人： Stephen J. DiVerdi , Sunil Hadap , Aravind Krishnaswamy
发明人： Stephen J. DiVerdi , Sunil Hadap , Aravind Krishnaswamy
IPC分类号： G06F3/033 , G06F3/01 , G06F3/048
CPC分类号： G06F3/03545 , G06F3/04845 , G06F3/0488 , G06F2203/04105
摘要： A method, system, and computer-readable storage medium for simulating bristle brush behavior in an image editing application may use stiffness-height parameterization to determine the height of a brush tool above a canvas during a brush stroke. The determination may be dependent on the pressure applied during the stroke (e.g., using a stylus on a pressure-sensitive tablet), and on the stiffness of the brush bristles. The system may select a standard-stiffness or high-stiffness mapping between stylus pressure values and brush height values dependent whether the bristle stiffness value is above or below a pre-determined threshold. The standard-stiffness mapping may apply a linear function to pressure values to determine height values. Using the high-stiffness mapping, the effect of increased pressure on corresponding brush height values may be reduced as bristle stiffness is increased. Adjusting pressure-to-height mapping based on stiffness may allow the system to realistically mimic the behavior of stiff bristle brushes.
摘要翻译：用于模拟图像编辑应用中的刷毛行为的方法，系统和计算机可读存储介质可以使用刚度高度参数化来确定在画笔笔画期间画布上方的画笔工具的高度。该测定可以取决于在中风期间施加的压力（例如，使用压敏胶片上的触针）以及刷毛的刚度。系统可以根据刷毛刚度值是否高于或低于预定阈值来选择触针压力值和刷高度值之间的标准刚度或高刚度映射。标准刚度映射可以对压力值应用线性函数来确定高度值。使用高刚度映射，随着刷毛刚度的增加，增加压力对相应刷高度值的影响可能会降低。基于刚度调整压力对高度的映射可以使系统实际模拟刚性刷毛的行为。

3. 发明授权

US08599213B2 System and method for simulating paint brush strokes using configurable wetness, drying, and mixing parameters 有权
标题翻译：使用可配置的湿度，干燥和混合参数来模拟油漆刷冲程的系统和方法
公开(公告)号：US08599213B2
公开(公告)日：2013-12-03
申请号：US12862902
申请日：2010-08-25
申请人： Stephen J. DiVerdi , Aravind Krishnaswamy , Jerry G. Harris , Sunil Hadap , Walter Michael Shaw
发明人： Stephen J. DiVerdi , Aravind Krishnaswamy , Jerry G. Harris , Sunil Hadap , Walter Michael Shaw
IPC分类号： G09G5/02 , G09G5/00
CPC分类号： G06T11/40
摘要： Systems, methods, and apparatus for simulating natural media painting in a digital painting application (or painting simulation module) may more accurately simulate real world painting techniques than conventional painting simulation applications. The digital painting application (or simulation module) may provide a small set of physically meaningful parameters (e.g., canvas wetness, drying rate, and pickup mix ratio). By setting the values of these parameters (or overriding default values for a selected paint type), the user may better control the appearance of brush strokes made by a virtual paint brush on a digital canvas. For example, the length of a brush stroke, the amount of streaking caused by paint picked up during the brush stroke, and/or the mix of paint deposited from a pickup buffer and a reservoir buffer of a brush model may be affected by changing the values of these parameters, thus allowing users to create different realistic painting effects.
摘要翻译：用于在数字绘画应用（或绘画模拟模块）中模拟自然媒体绘画的系统，方法和装置可以比常规绘画模拟应用更准确地模拟真实世界的绘画技术。数字绘画应用（或模拟模块）可以提供一小组物理上有意义的参数（例如，画布湿度，干燥速率和拾取混合比）。通过设置这些参数的值（或覆盖所选绘制类型的默认值），用户可以更好地控制由数字画布上的虚拟绘画画笔进行的画笔笔画的外观。例如，画笔笔划的长度，在画笔冲程期间拾取的油漆引起的条纹数量和/或从拾取缓冲器和刷子模型的储存器缓冲器沉积的油漆混合物可能会受到影响，这些参数的值，从而允许用户创建不同的逼真绘画效果。

4. 发明申请

US20130120427A1 System and Method for Simulation of Paint Deposition Using a Pickup and Reservoir Model 有权
标题翻译：使用拾取和储层模型模拟油漆沉积的系统和方法
公开(公告)号：US20130120427A1
公开(公告)日：2013-05-16
申请号：US12862879
申请日：2010-08-25
申请人： Stephen J. DiVerdi , Sunil Hadap , Aravind Krishnaswamy
发明人： Stephen J. DiVerdi , Sunil Hadap , Aravind Krishnaswamy
IPC分类号： G09G5/02 , G06T11/20
CPC分类号： G06T11/40
摘要： Systems, methods, and apparatus for simulating natural media painting in a digital painting application (or painting simulation module) using a two-layer model of a virtual paint brush may more accurately simulate real world painting techniques than conventional painting simulations. A two-layer brush model may include a reservoir buffer and a pickup buffer to separately represent the paint stored in the belly of a paint brush tip and paint that has been picked up on the surface of the brush tip during a brush stoke, respectively. The two-layer brush model may also include methods that automatically control how virtual paint moves between these layers and a digital canvas. In simulations that employ this two-layer brush model, virtual paint may be deposited on the digital canvas directly from both of the buffers. The amount of paint deposited from each buffer (and/or the ratio of the amounts) may be configurable by a user.
摘要翻译：使用虚拟油漆刷的两层模型在数字绘画应用（或绘画模拟模块）中模拟自然媒体绘画的系统，方法和装置可以比常规绘画模拟更准确地模拟真实世界的绘画技术。双层刷子模型可以包括储存器缓冲器和拾取缓冲器，以分别表示在刷子刷头期间被存储在刷子尖端的腹部中的涂料和在刷头表面上被拾取的涂料。双层刷子模型还可以包括自动控制虚拟绘图在这些层之间移动以及数字画布的方法。在使用这种双层刷子模型的模拟中，虚拟油漆可以直接从两个缓冲器沉积在数字画布上。从每个缓冲液沉积的油漆量（和/或量的比例）可由用户配置。

5. 发明授权

US08760438B2 System and method for simulating stiff bristle brushes using stiffness-height parameterization 有权
标题翻译：使用刚度高度参数化模拟刚毛刷的系统和方法
公开(公告)号：US08760438B2
公开(公告)日：2014-06-24
申请号：US12790599
申请日：2010-05-28
申请人： Stephen J. DiVerdi , Sunil Hadap , Aravind Krishnaswamy
发明人： Stephen J. DiVerdi , Sunil Hadap , Aravind Krishnaswamy
IPC分类号： G06F3/033 , G06F3/048
CPC分类号： G06F3/03545 , G06F3/04845 , G06F3/0488 , G06F2203/04105
摘要： A method, system, and computer-readable storage medium for simulating bristle brush behavior in an image editing application may use stiffness-height parameterization to determine the height of a brush tool above a canvas during a brush stroke. The determination may be dependent on the pressure applied during the stroke (e.g., using a stylus on a pressure-sensitive tablet), and on the stiffness of the brush bristles. The system may select a standard-stiffness or high-stiffness mapping between stylus pressure values and brush height values dependent whether the bristle stiffness value is above or below a pre-determined threshold. The standard-stiffness mapping may apply a linear function to pressure values to determine height values. Using the high-stiffness mapping, the effect of increased pressure on corresponding brush height values may be reduced as bristle stiffness is increased. Adjusting pressure-to-height mapping based on stiffness may allow the system to realistically mimic the behavior of stiff bristle brushes.
摘要翻译：用于模拟图像编辑应用中的刷毛行为的方法，系统和计算机可读存储介质可以使用刚度高度参数化来确定在画笔笔画期间画布上方的画笔工具的高度。该测定可以取决于在中风期间施加的压力（例如，使用压敏胶片上的触针）以及刷毛的刚度。系统可以根据刷毛刚度值是否高于或低于预定阈值来选择触针压力值和刷高度值之间的标准刚度或高刚度映射。标准刚度映射可以对压力值应用线性函数来确定高度值。使用高刚度映射，随着刷毛刚度的增加，增加压力对相应刷高度值的影响可能会降低。基于刚度调整压力对高度的映射可以使系统实际模拟刚性刷毛的行为。

6. 发明授权

US08654143B2 System and method for non-uniform loading of digital paint brushes 有权
标题翻译：数字油漆刷不均匀加载的系统和方法
公开(公告)号：US08654143B2
公开(公告)日：2014-02-18
申请号：US12862913
申请日：2010-08-25
申请人： Aravind Krishnaswamy , Stephen J. DiVerdi , Sunil Hadap
发明人： Aravind Krishnaswamy , Stephen J. DiVerdi , Sunil Hadap
IPC分类号： G09G5/02
CPC分类号： G06T11/40
摘要： Systems, methods, and apparatus for simulating natural media painting in a digital painting application (or painting simulation module) may provide user interface elements and methods that allow a user to load a brush with non-uniform paint colors by directly sampling the digital canvas. For example, a user may hover the brush over an area on the canvas having a non-uniform color distribution, and the application (or module) may sample the colors of the pixels under the brush, and load the brush with a collection of paint values reflecting the non-uniform distribution of colors in the sample. The application may support two non-uniform paint loading modes, e.g., one that fills the brush with a distribution of paint matching a single sample, and one that fills the brush with paint continuously as it is swept over the canvas. Non-uniform paint loading may be applied to stamp-based brush models and/or bristle brush models.
摘要翻译：用于在数字绘画应用（或绘画模拟模块）中模拟自然媒体绘画的系统，方法和装置可以提供用户界面元素和方法，其允许用户通过直接对数字画布采样来加载具有不均匀涂料颜色的画笔。例如，用户可以将刷子悬停在具有不均匀颜色分布的画布上的区域上，并且应用程序（或模块）可以对刷子下的像素的颜色进行采样，并且用画笔的集合加载画笔反映样品中颜色不均匀分布的数值。该应用可以支持两种不均匀的油漆装载模式，例如，一个填充刷子的油漆与单个样品匹配的油漆分配，以及当油墨在帆布上扫过油漆时连续地填充油漆。不均匀的油漆装载可以应用于基于印章的刷子模型和/或刷毛模型。

7. 发明申请

US20130120436A1 System and Method for Non-Uniform Loading of Digital Paint Brushes 有权
标题翻译：数字油漆刷不均匀装载的系统和方法
公开(公告)号：US20130120436A1
公开(公告)日：2013-05-16
申请号：US12862913
申请日：2010-08-25
申请人： Aravind Krishnaswamy , Stephen J. DiVerdi , Sunil Hadap
发明人： Aravind Krishnaswamy , Stephen J. DiVerdi , Sunil Hadap
IPC分类号： G09G5/02
CPC分类号： G06T11/40
摘要： Systems, methods, and apparatus for simulating natural media painting in a digital painting application (or painting simulation module) may provide user interface elements and methods that allow a user to load a brush with non-uniform paint colors by directly sampling the digital canvas. For example, a user may hover the brush over an area on the canvas having a non-uniform color distribution, and the application (or module) may sample the colors of the pixels under the brush, and load the brush with a collection of paint values reflecting the non-uniform distribution of colors in the sample. The application may support two non-uniform paint loading modes, e.g., one that fills the brush with a distribution of paint matching a single sample, and one that fills the brush with paint continuously as it is swept over the canvas. Non-uniform paint loading may be applied to stamp-based brush models and/or bristle brush models.
摘要翻译：用于在数字绘画应用（或绘画模拟模块）中模拟自然媒体绘画的系统，方法和装置可以提供用户界面元素和方法，其允许用户通过直接对数字画布采样来加载具有不均匀涂料颜色的画笔。例如，用户可以将刷子悬停在具有不均匀颜色分布的画布上的区域上，并且应用程序（或模块）可以对刷子下的像素的颜色进行采样，并且用画笔的集合加载画笔反映样品中颜色不均匀分布的数值。该应用可以支持两种不均匀的油漆装载模式，例如，一个填充刷子的油漆与单个样品匹配的油漆分配，以及当油墨在帆布上扫过油漆时连续地填充油漆。不均匀的油漆装载可以应用于基于印章的刷子模型和/或刷毛模型。

8. 发明申请

US20130120435A1 System And Method For Simulating Paint Brush Strokes Using Configurable Wetness, Drying, And Mixing Parameters 有权
标题翻译：使用可配置的湿度，干燥和混合参数来模拟油漆笔刷的系统和方法
公开(公告)号：US20130120435A1
公开(公告)日：2013-05-16
申请号：US12862902
申请日：2010-08-25
申请人： Stephen J. DiVerdi , Aravind Krishnaswamy , Jerry G. Harris , Sunil Hadap , Walter Michael Shaw
发明人： Stephen J. DiVerdi , Aravind Krishnaswamy , Jerry G. Harris , Sunil Hadap , Walter Michael Shaw
IPC分类号： G09G5/02
CPC分类号： G06T11/40
摘要： Systems, methods, and apparatus for simulating natural media painting in a digital painting application (or painting simulation module) may more accurately simulate real world painting techniques than conventional painting simulation applications. The digital painting application (or simulation module) may provide a small set of physically meaningful parameters (e.g., canvas wetness, drying rate, and pickup mix ratio). By setting the values of these parameters (or overriding default values for a selected paint type), the user may better control the appearance of brush strokes made by a virtual paint brush on a digital canvas. For example, the length of a brush stroke, the amount of streaking caused by paint picked up during the brush stroke, and/or the mix of paint deposited from a pickup buffer and a reservoir buffer of a brush model may be affected by changing the values of these parameters, thus allowing users to create different realistic painting effects.
摘要翻译：用于在数字绘画应用（或绘画模拟模块）中模拟自然媒体绘画的系统，方法和装置可以比常规绘画模拟应用更准确地模拟真实世界的绘画技术。数字绘画应用（或模拟模块）可以提供一小组物理上有意义的参数（例如，画布湿度，干燥速率和拾取混合比）。通过设置这些参数的值（或覆盖所选绘制类型的默认值），用户可以更好地控制由数字画布上的虚拟绘画画笔进行的画笔笔画的外观。例如，画笔笔划的长度，在画笔冲程期间拾取的油漆引起的条纹数量和/或从拾取缓冲器和刷子模型的储存器缓冲器沉积的油漆混合物可能会受到影响，这些参数的值，从而允许用户创建不同的逼真绘画效果。

9. 发明授权

US08605095B2 Generating vector output from a physical simulation of a bristle brush 有权
标题翻译：从刷毛的物理模拟生成矢量输出
公开(公告)号：US08605095B2
公开(公告)日：2013-12-10
申请号：US12790581
申请日：2010-05-28
申请人： Stephen J. DiVerdi , Sunil Hadap , Darin C. Tomack
发明人： Stephen J. DiVerdi , Sunil Hadap , Darin C. Tomack
IPC分类号： G06T11/20
CPC分类号： G06T11/203 , G06T11/001 , G06T11/206
摘要： A method, system, and computer-readable storage medium are disclosed for simulating bristle brush behavior and generating vector output from such simulations. User input may represent a stroke made by a paint brush comprising multiple bristles sweeping across a canvas. A vector representation of the brush stroke's effects may be generated by, for each of the plurality of bristles: determining a path along which the bristle has swept, and generating a vector representation of the path along which the bristle has swept (e.g., a set of Bézier curves, or straight line segments). The vector representation of the effects of the brush stroke may comprise the vector representations of the paths along which each of the plurality of bristles has swept. The vector representations of the paths of each bristle sweep may be composited over each other in an image editing application to depict the brush stroke for display and/or for printing.
摘要翻译：公开了一种用于模拟刷毛行为并从这种模拟产生矢量输出的方法，系统和计算机可读存储介质。用户输入可以表示由刷子组成的笔画，其包括扫过画布的多个刷毛。对于多个刷毛中的每一个，可以产生刷笔画效果的向量表示：确定刷毛扫过的路径，以及生成刷毛扫过的路径的向量表示（例如，一组的贝塞尔曲线或直线段）。画笔笔划的效果的矢量表示可以包括多个刷毛中的每一个刷过的路径的矢量表示。每个刷毛扫描的路径的向量表示可以在图像编辑应用中彼此合成以描绘用于显示和/或打印的画笔笔触。

10. 发明申请

US20130120426A1 System and Method for Generating Vector Output From a Physical Simulation of a Bristle Brush 有权
标题翻译：用于从刷毛刷的物理模拟生成矢量输出的系统和方法
公开(公告)号：US20130120426A1
公开(公告)日：2013-05-16
申请号：US12790581
申请日：2010-05-28
申请人： Stephen J. DiVerdi , Sunil Hadap , Darin C. Tomack
发明人： Stephen J. DiVerdi , Sunil Hadap , Darin C. Tomack
IPC分类号： G09G5/02 , G06T11/20
CPC分类号： G06T11/203 , G06T11/001 , G06T11/206
摘要： A method, system, and computer-readable storage medium are disclosed for simulating bristle brush behavior and generating vector output from such simulations. User input may represent a stroke made by a paint brush comprising multiple bristles sweeping across a canvas. A vector representation of the brush stroke's effects may be generated by, for each of the plurality of bristles: determining a path along which the bristle has swept, and generating a vector representation of the path along which the bristle has swept (e.g., a set of Bézier curves, or straight line segments). The vector representation of the effects of the brush stroke may comprise the vector representations of the paths along which each of the plurality of bristles has swept. The vector representations of the paths of each bristle sweep may be composited over each other in an image editing application to depict the brush stroke for display and/or for printing.
摘要翻译：公开了一种用于模拟刷毛行为并从这种模拟产生矢量输出的方法，系统和计算机可读存储介质。用户输入可以表示由刷子组成的笔画，其包括扫过画布的多个刷毛。对于多个刷毛中的每一个，可以产生刷笔画效果的向量表示：确定刷毛扫过的路径，以及生成刷毛扫过的路径的向量表示（例如，一组的贝塞尔曲线或直线段）。画笔笔划的效果的矢量表示可以包括多个刷毛中的每一个刷过的路径的矢量表示。每个刷毛扫描的路径的向量表示可以在图像编辑应用中彼此合成以描绘用于显示和/或打印的画笔笔触。

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