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    • 2. 发明授权
    • Producing wrinkles and other effects for a computer-generated character based on surface stress
    • 基于表面应力产生计算机生成角色的皱纹和其他影响
    • US08217955B2
    • 2012-07-10
    • US12186006
    • 2008-08-05
    • Ian Stewart
    • Ian Stewart
    • G09G5/00
    • G06T11/001G06T13/40
    • Wrinkles are produced by computing directional stress, whether compression or stretching, for each pixel within each face of the mesh representing the skin, and then perturbing a surface normal based on the computed stress at each pixel in that face of the mesh. Directional stress at a given frame in an animation is determined, in general, by comparing the current state of the mesh at that frame (called a “current pose”) to the original state of the mesh (called a “rest pose”). An artist specifies a wrinkle pattern by defining a texture that is mapped to the surface, using conventional techniques. A gradient texture is created from this wrinkle texture by computing the gradient at each pixel in the wrinkle texture. For each location in a face of the surface, the vector from the gradient texture is mapped to the corresponding face of the rest pose skin model and the current pose skin model, to produce two surface vectors. These two vectors are compared to provide an estimate of the surface stress at this location in the face. A wrinkle effect may be implemented using bump mapping, but the surface normal is perturbed differently for each location in the face of the mesh based on the skin stress estimated at that location. Other effects also may be created using the estimated stresses.
    • 通过计算代表皮肤的网格的每个面内的每个像素的方向应力(无论是压缩还是拉伸),然后基于网格的该表面中的每个像素处的计算出的应力来扰动表面法线来产生皱纹。 一般来说,通过将该帧的网格的当前状态(称为“当前姿态”)与网格的原始状态(称为“休息姿态”)进行比较来确定动画中的给定帧处的定向应力。 艺术家通过使用常规技术定义映射到表面的纹理来指定皱纹图案。 通过计算皱纹纹理中每个像素的渐变,从此皱纹纹理创建渐变纹理。 对于表面的每个位置,将梯度纹理的向量映射到其余姿态皮肤模型和当前姿态皮肤模型的对应面,以产生两个表面向量。 将这两个向量进行比较,以提供面部位置处的表面应力的估计。 可以使用凹凸贴图来实现皱纹效果,但是基于在该位置处估计的皮肤应力,表面法线在网格面部中的每个位置被不同地扰动。 也可以使用估计的应力产生其他影响。
    • 3. 发明申请
    • System and method for time dimension management for a data analyzing system
    • 用于数据分析系统的时间维度管理系统和方法
    • US20060253475A1
    • 2006-11-09
    • US11124907
    • 2005-05-09
    • Ian StewartFloyd KellyIlse Breedvelt-Schouten
    • Ian StewartFloyd KellyIlse Breedvelt-Schouten
    • G06F7/00
    • G06Q10/109
    • A time dimension management system is provided for managing time dimension of a data analyzing system for analyzing data stored in a data store based on a time data structure. The time dimension management system comprises a date selector controller and a calendar coordinator. The date selector controller is provided for controlling a date selector that presents to a user a standard calendar and a business calendar. The date selector controller has a standard calendar manager for managing presentation of the standard calendar for allowing the user to select a date on the standard calendar, and a business calendar manager for managing presentation of the business calendar to represent the time data structure that the data analyzing system uses, and allowing the user to select a date on the business calendar. The calendar coordinator is provided for coordinating the standard calendar manager and the business calendar manager to indicate a selected date on the standard calendar and the business calendar.
    • 提供了一种时间维度管理系统,用于基于时间数据结构来管理用于分析存储在数据存储器中的数据的数据分析系统的时间维度。 时间维度管理系统包括日期选择器控制器和日历协调器。 提供日期选择器控制器用于控制向用户呈现标准日历和商业日历的日期选择器。 日期选择器控制器具有用于管理标准日历的呈现的标准日历管理器,用于允许用户选择标准日历上的日期,以及业务日历管理器,用于管理业务日历的呈现以表示数据的时间数据结构 分析系统使用,并允许用户在商业日历上选择日期。 提供日历协调员用于协调标准日历管理器和业务日历管理器,以在标准日历和业务日历上指示选定的日期。
    • 6. 发明授权
    • Video compression system and method using time
    • 视频压缩系统和方法使用时间
    • US06792154B1
    • 2004-09-14
    • US09684803
    • 2000-10-06
    • Ian Stewart
    • Ian Stewart
    • G06K936
    • G06T9/001
    • A system and method for compressing a video image. The system includes an object database and a compression processor coupled to the object database for receiving video image information from a video source. The compression processor includes an image analyzer for determining status of one or more pixels of the video image over time, a shape determiner for determining a shape that defines a group of pixels that are determined to have the same status over a period of time, an object retriever for retrieving an object from the object database that corresponds to the determined shape from a stored set of objects, and a saving component for saving information relating to the selected object and dimensional information of the determined shape.
    • 一种用于压缩视频图像的系统和方法。 该系统包括对象数据库和耦合到对象数据库的压缩处理器,用于从视频源接收视频图像信息。 压缩处理器包括用于确定视频图像随时间的一个或多个像素的状态的图像分析器,用于确定定义在一段时间内被确定为具有相同状态的像素组的形状的形状确定器, 对象检索器,用于从存储的对象集合中检索与所确定的形状相对应的对象数据库中的对象;以及保存组件,用于保存与所选择的对象相关的信息和所确定的形状的维度信息。
    • 7. 发明授权
    • Pulse width modulated cable signal injecting apparatus
    • 脉宽调制电缆信号注入装置
    • US06411074B1
    • 2002-06-25
    • US09668273
    • 2000-09-25
    • Roman KruchowyIan Stewart
    • Roman KruchowyIan Stewart
    • G01R1900
    • G01R31/088
    • A signal injecting apparatus which includes a microcontroller for generating a 1024 hertz square wave signal which is supplied through a NAND gate to a field effect transistor. When the transistor is switch on a tank circuit comprising a pair of capacitors and the primary of a signal injector coil starts oscillating and will continue to oscillate when the transistor is switch off. The power level for the signal to the cable is determined by an operator based on the operator inputs from depressing a pair of push button switches. The microcontroller, responsive to the operator inputs from the push button switches, outputs a digital word to a digital-to-analog converter that represents the required power level. The analog output signal from the digital-to-analog converter is supplied to a control loop circuit which adjust the power level by enabling and disabling the NAND gate.
    • 一种信号注入装置,其包括微控制器,用于产生通过NAND门提供给场效应晶体管的1024赫兹方波信号。 当晶体管接通包括一对电容器的储能电路时,信号注入器线圈的初级线圈开始振荡,并且当晶体管截止时将继续振荡。 信号到电缆的功率电平由操作员根据按下一对按钮开关的操作者输入来确定。 微控制器响应于来自按钮开关的操作者输入,将数字字输出到表示所需功率电平的数模转换器。 来自数模转换器的模拟输出信号被提供给控制环电路,该控制环电路通过启用和禁用NAND门来调节功率电平。
    • 8. 发明授权
    • Efficient processing of operator graphs representing three-dimensional character animation
    • 高效处理表示三维角色动画的运算符图
    • US08310484B2
    • 2012-11-13
    • US11881202
    • 2007-07-26
    • Jérôme Couture-GagnonPeter ZionIan StewartRonald BeiroutiDominic LaflammeMaxime Beaudry
    • Jérôme Couture-GagnonPeter ZionIan StewartRonald BeiroutiDominic LaflammeMaxime Beaudry
    • G06T13/00
    • G06T13/40G06F17/30958G06T2210/52G06T2210/61
    • An operator graph representing three-dimensional animation can be analyzed to identify subgraphs of the operator graph in which operators are not required to operate in a serialized manner. Such a condition may arise, for example, when two operators are not dependent on each other for data. This condition may arise when the operators are operating on different elements in a scene. Such operators may be evaluated in parallel. To identify these operators, a dependency graph is created. The dependency graph indicates which operators have inputs that are dependent on outputs provided by other operators. Using this graph, operators that are independent of each other can be readily identified. These operators can be evaluated in parallel. In an interactive editing system for three-dimensional animation or other rich media, such an analysis of an operator graph would occur when changes are made to the animation. The creation and use of the dependency graph enables faster processing of a scene while changes to the scene are being made.
    • 可以分析表示三维动画的运算符图,以识别运算符图的子图,其中运算符不需要以串行方式操作。 例如,当两个操作员不依赖于数据时,可能会出现这种情况。 当操作员在场景中的不同元素上操作时,可能会出现这种情况。 可以并行评估这些操作者。 为了识别这些运算符,创建依赖图。 依赖图表示哪些运算符具有取决于其他运算符提供的输出的输入。 使用该图,可以容易地识别彼此独立的运算符。 可以并行评估这些运算符。 在用于三维动画或其他富媒体的交互式编辑系统中,当对动画进行改变时,将发生对运算符图的分析。 依赖图的创建和使用可以在对场景进行更改的同时更快地处理场景。
    • 9. 发明申请
    • Efficient processing of operator graphs representing three-dimensional character animation
    • 高效处理表示三维角色动画的运算符图
    • US20080028414A1
    • 2008-01-31
    • US11881202
    • 2007-07-26
    • Jerome Couture-GagnonPeter ZionIan StewartRonald BeiroutiDomimic LaflammeMaxime Beaudry
    • Jerome Couture-GagnonPeter ZionIan StewartRonald BeiroutiDomimic LaflammeMaxime Beaudry
    • G06F9/46
    • G06T13/40G06F17/30958G06T2210/52G06T2210/61
    • An operator graph representing three-dimensional animation can be analyzed to identify subgraphs of the operator graph in which operators are not required to operate in a serialized manner. Such a condition may arise, for example, when two operators are not dependent on each other for data. This condition may arise when the operators are operating on different elements in a scene. Such operators may be evaluated in parallel. To identify these operators, a dependency graph is created. The dependency graph indicates which operators have inputs that are dependent on outputs provided by other operators. Using this graph, operators that are independent of each other can be readily identified. These operators can be evaluated in parallel. In an interactive editing system for three-dimensional animation or other rich media, such an analysis of an operator graph would occur when changes are made to the animation. The creation and use of the dependency graph enables faster processing of a scene while changes to the scene are being made.
    • 可以分析表示三维动画的运算符图,以识别运算符图的子图,其中运算符不需要以串行方式操作。 例如,当两个操作员不依赖于数据时,可能会出现这种情况。 当操作员在场景中的不同元素上操作时,可能会出现这种情况。 可以并行评估这些操作者。 为了识别这些运算符,创建依赖图。 依赖图表示哪些运算符具有取决于其他运算符提供的输出的输入。 使用该图,可以容易地识别彼此独立的运算符。 可以并行评估这些运算符。 在用于三维动画或其他富媒体的交互式编辑系统中,当对动画进行改变时,将发生对运算符图的分析。 依赖图的创建和使用可以在对场景进行更改的同时更快地处理场景。