A CAT package on the fundamentals of control engineering

A Computer Assisted Teaching (CAT) package on Control Engineering is presented. Two important application features of a digital computer—digital simulation and data acquisition—are utilized to illustrate the effectiveness of computers as an engineering problem solving tool and to consolidate concepts taught in the class. The package is conversational and coupled with the extensive use of graphics Swhich make it ideally suitable for use in an educational environment.     

Interacting with discrete simulation using on line graphic animation

An interactive system is described which allows for the graphic construction, simulation, and simultaneous animation of an arbitrary network of queues. A method is proposed and implemented for representing the events of a discrete simulation by a continuous animation on a graphics terminal. Techniques are presented for the display of parallel animation ‘sequences’, and a non-trivial mapping of simulation time into animation time is described which preserves the relation order and time relationships between events. The program implemented combines this animation facility with other simulation monitoring and control features. An interactive dialogue which makes use of the lightpen and a menu of commands is implemented for the construction and modification of the queuing network. Certain relevent aspects of man-machine interaction are discussed. The usefulness of this type of approach is discussed with respect to computer-aided design applications, educational tools, and research tools.     

Flash动画制作技巧

通过Flash软件可以将文字、图形图像、音频、视频等多种媒体编辑组合在一起,制作出具有交互功能的高品质的SWF动画作品。由于采用矢量图形和流式播放技术,生成的动画文件非常精小,可一边下载一边播放,适合制作网页设计中的动画。阐述了Flash软件制作动画时的各种技巧。随着网络传输速度的加快,Flash动画的应用领域会越来越广。     

水下航行器导引仿真系统的三维动画显示

该文利用ＯｐｅｎＧＬ图形库在ＵＮＩＸ环境下实现水下航行器导引规律的３Ｄ动画显示,论述了图形库数据结构、三维几何造型、计算机图形处理和开发软件,给出了水下航行器３Ｄ运动轨迹动画显示的主要源程序及仿真结果,对于复杂物体造型采用简便实用的拓扑点连接法,仿真实验的优良结果表明,水下航行器导引仿真中实现计算呆视化和数据可示化具有很好的直观性和更多的信息量。     

基于微机的机器人离线轨迹规划系统

本文提出了基于IBM-AT微机的机器人离线轨迹规划系统.系统的软件主要包括;机器人和环境物的三维图形的交互式产生,运动学和动力学的计算,轨迹规划.碰撞的检测和图形显示动画.系统利用通讯模块和接口电路可以从IBM-AT到机器人控制之间传递信息.使用该软件的PT-300V工业机器人离线轨迹规划的实验已初步地完成.     

高校《Flash》中元件与实例的教学设计

随着Flash技术的不断成熟与普及发展,Flash软件已广泛应用到社会的各个领域。很多高校在平面设计、网络技术、机电、动漫、影视等专业都增设了此课程。而元件与实例是Flash软件的重点和难点部分。本文针对高校学生的特点,本着如何让学生真正掌握这门技术,熟练运用软件工具,将成果运用到社会实践中去的目的,根据教学对象、教学内容、教学目标等,探讨讲授这门课程的科学方法和技巧。     

An animation facility for computer-aided design

An interactive graphic extension of a continuous systems simulation language is discussed aimed at providing a general purpose support for animation. The interactive commands available to the user are described together with an explanation of how the basic set of commands can be extended using commands suitable for the particular design problem. A selection of applications are described.     

图形技术在系统仿真中的应用

本文首先从应用对系统仿真提出的要求出发，讨论了图形技术在系统仿真中的地位及应用范围，然后着重介绍了系统仿真中的动画仿真和图形建模技术，提出了实现动画仿真和图形建模必须解决的关键技术问题，并结合ＩＭＳＳ给出了实现动画仿真和图形建模的一种方法。     

基于原创工业案例的Flash设计课程教学模式

针对目前很多学生Flash动画设计缺乏创意的状况,笔者将Flash设计课程的教学分解成11个在剧本、音效、动画技巧、主题等方面各具特色的工业案例,综合电影制作、平面设计、声音处理等多方面的技巧,教学重心也从软件的使用上升到二维动画的设计与制作上。"原创"才是设计的核心,选取本校师生原创作品作为课堂案例能大大提高学生设计的自信心,激起学生浓厚的兴趣,促使每一个学生都有原创的Flash代表作品。     

利用MaxScript脚本语言实现粒子流特效动画

3DS Max是专业的电脑三维动画制作软件,它的最大优势与最大魅力在于动画制作.MaxScript是3DS Max 内置的脚本语言,3DS Max的大多数功能都可以通过脚本调用.利用MaxScript可以编制各种影视广告、影视特效动画脚本,运行脚本程序后就会自动生成动画特效.主要介绍粒子流特效动画脚本的编制方法.     

基于机器学习的语音驱动人脸动画方法

语音与唇动面部表情的同步是人脸动画的难点之一.综合利用聚类和机器学习的方法学习语音信号和唇动面部表情之间的同步关系,并应用于基于MEPG-4标准的语音驱动人脸动画系统中.在大规模音视频同步数据库的基础上,利用无监督聚类发现了能有效表征人脸运动的基本模式,采用神经网络学习训练,实现了从含韵律的语音特征到人脸运动基本模式的直接映射,不仅回避了语音识别鲁棒性不高的缺陷,同时学习的结果还可以直接驱动人脸网格.最后给出对语音驱动人脸动画系统定量和定性的两种分析评价方法.实验结果表明,基于机器学习的语音驱动人脸动画不仅能有效地解决语音视频同步的难题,增强动画的真实感和逼真性,同时基于MPEG-4的学习结果独立于人脸模型,还可用来驱动各种不同的人脸模型,包括真实视频、2D卡通人物以及3维虚拟人脸.     

An interactive system for the construction and animation of systems dynamics models

An interactive system, SIMILE, for the construction, manipulation and animation of systems dynamics models is described. The system is intended to be used primarily as an educational tool, to allow users to experiment with and develop systems dynamics models. However, the system also may be used for creating films of these models.

A model is represented pictorially as a graph, where nodes represent components and edges show relations between these components. One is able to graphically create and modify a particular model. In executing or running a model, the graphic configuration is itself animated; this animation may take place at a display terminal, or the system output may be routed to a microfilm plotter to produce a film of the model.

At the terminal, the execution may be speeded up or slowed down; also one may step through the model (with respect to time), or examine the state of the model at any point in the simulation. Plots of the values of selected variables against time may also be obtained. In addition, changes to a model, or in a model's parameters, can be easily made and the effects of these changes can be immediately seen.

A number of short films have been produced by the system. These include a film which illustrates certain aspects of feedback loops and another showing the effect of specific parameters on a model of an influenza epidemic.     

An interactive environment for scientific development

System Development Corporation is developing an interactive graphic scientific development system whose primary objective is ease of direction and use. This system provides an environment within which a scientific researcher—for example, an image processor—can design processes, investigate results, and guide experimental steps.

The SDC system is interactive and natural. The user communicates in mathematical or graphic handwritten notation; he can use standard tools or create his own. For example, the user can draw a graph and have it saved as a function, or he can create functions using mathematical notation.     

Art and animation

The growing use of computer graphics by artists and animators is examined. The factors responsible for this trend are discussed. Advances in animation are described. These include the use of more live action film with image processing techniques to modify the images and improved rendering, animation systems, and geometric modelers. Algorithms for animation are discussed. Interactive art objects are considered, and the emergence of computer folk art is predicted     

一种改进的PowerPoint 工程图动画制作方法研究

PowerPoint 制作的动画在目前工程制图教学中占据主要地位,但是PPT 中图形的 绘制和动画的制作以及修改都很困难,提出一种结合AutoCAD 矢量图形制作动画方法,很好 地解决了图形绘制以及动画定义后的再修改问题。     

基于OGRE的角色动画的实现

在游戏以及虚拟现实中,角色动画是比较常见的,利用OGRE图形渲染引擎实现角色的移动,并根据当前角色的状态设置其对应的动画,提供了逼真的图形表现。     

基于生成对抗网络的图像动漫化

动漫风格的图像具有高度的简化和抽象等特征,为了解决将现实世界图像转化成动漫风格图像这一问题,提出一种基于生成对抗网络的图像动漫化方法。本文的生成网络是类U-Net的全卷积结构,对输入图像先下采样,并加上浅层的特征用双线性插值的方法进行上采样,判别网络则采用Patch GAN加谱归一化的结构,分别计算语义内容损失和风格损失以提高网络的稳定性。本文采用surface表征损失、structure表征损失和texture表征损失代替风格损失,使得生成动漫图像的效果更可控。写实图像选用train2014,人脸图像采用CelebA-HQ数据集。使用本文模型在这些数据集上进行实验,实验结果表明,本文模型能够有效地完成图像动漫化的过程,并生成较高质量的动漫化图像。     

Layered Performance Animation with Correlation Maps

Performance has a spontaneity and “aliveness” that can be difficult to capture in more methodical animation processes such as keyframing. Access to performance animation has traditionally been limited to either low degree of freedom characters or required expensive hardware. We present a performance-based animation system for humanoid characters that requires no special hardware, relying only on mouse and keyboard input. We deal with the problem of controlling such a high degree of freedom model with low degree of freedom input through the use of correlation maps which employ 2D mouse input to modify a set of expressively relevant character parameters. Control can be continuously varied by rapidly switching between these maps. We present flexible techniques for varying and combining these maps and a simple process for defining them. The tool is highly configurable, presenting suitable defaults for novices and supporting a high degree of customization and control for experts. Animation can be recorded on a single pass, or multiple layers can be used to increase detail. Results from a user study indicate that novices are able to produce reasonable animations within their first hour of using the system. We also show more complicated results for walking and a standing character that gestures and dances.