一类全不连通分形图的构造

为构造一类全不连通的分形图 ,利用了适当的类康托集 ,将某一迭代函数系统升腾为高维空间上的升腾迭代函数系统 ,并通过参数调整构造出大量造型上全不连通的分形图 ,同时发现了类康托集的结构和分形图的结构之间的变化关系 ,实验结果表明 ,该方法简单易用 .     

基于网格模型的面料二维虚拟场景模拟

提出并实现了一种在二维场景中模拟显示面料真实感效果的方法 .为实现面料在特定场景中的效果模拟 ,主要需解决的是场景中面料伪曲面网格模型的建立 ,以及从面料图案到伪曲面的纹理映射 .面料伪曲面网格模型 ,是通过在二维场景中建立曲边四边形 ,然后使用双线性插值方法对它进行网格划分来建立的 ;而在进行面料纹理映射时 ,是采用基于三角形网格的映射方法 ,同时还要考虑面料表面的明暗变化效果 .运用这种方法建立的面料场景效果模拟系统 ,可以使面料设计者能够迅速地检查设计效果 ,用户能够方便地按照自己喜好来选购面料 ,具有良好的实用性能     

眼睛状态检测的组合方法

眼睛状态的检测具有广泛的应用.详细介绍了5种检测眼睛状态的方法,即灰度模板方法、Fisher方法、投影的方法、找眼睛上眼睑的方法、用Hough变换找眼珠的方法.通过对这5种方法进行组合,提高了眼睛状态检测的准确率.通过对396个眼睛进行检测,准确率达到了95.2％.实验结果表明了这5种算法组合算法的有效性,抗光照能力强;同时适中的复杂性也说明了该组合算法的可行性.     

基于分形特征的细胞核表面纹理分析

提出了一种改进的基于分块迭代函数系统的分形维估计方法,对骨髓涂片中不同成熟阶段的粒细胞核表面的纹理进行了研究.该方法首先通过压缩仿射变换对细胞核灰度图象进行分块迭代函数系统构建,然后从该系统中提取出反映细胞核分形特征的匹配块因子、尺度系数等参数用于计算分形维.为了避免对细胞核表面分形维的过高估计,就匹配块因子、尺度系数的计算进行了改进.对60幅不同类型的粒细胞核表面图象进行比较实验,其结果表明该方法提取的分形参数可有效地反映不同细胞核表面间的纹理差异,它们可作为细胞识别中的新特征量.     

工程图学教学改革与学生工程意识和创新能力的培养

进入技术经济时代，为培养复合型人才，高校如何发展值得探索，工程图学也是如此。本文就工程图学教改中注重培养学生的工程意识和创新能力及课程设置，提出一些问题加以探讨。     

控制系统计算机辅助分析软件的设计和实现

简介控制系统的系统分析方法,详细讨论使用MATLAB的图形用户界面开发工具(GUI)设计控制系统计算机辅助分析软件包步骤和方法,该用户界面具有简单性、一致性、熟悉性,用户能很方便掌握软件包的功能和使用方法。而且具有开放性功能,用户可以不断完善和扩充功能。并给出仿真实例,从而验证该方法的可行性和有效性。     

Role of laser sensor systems in automation and flexible manufacturing

New industries and production plants require a flexible system, which is capable of picking up objects of various shapes, weights, and colors with arbitrary position and orientation. Such a system also needs recognition and guiding sub-systems. The recognition system includes target function for the recognition sub-system and relation between object characteristics and recognition target. The laser sensor system can be used for such object recognition. Wire-based telemetry and control systems can cause many problems in shop floors and factories, and so there has been a strong growth of interest in wireless guidance like vehicles equipped with laser guiding and navigation systems. For the continuous measurements of parameters such as temperature, etc. optical laser sensor technology seems to become more applicable at this stage. This article describes the operational principles and the use of the most advanced laser sensor systems for quantity measurements, guiding, navigation, pattern recognition, and vision systems for inspection purposes. A variety of laser-based sensors, which can be used as sensing devices in manufacturing, and production technology, are described in this study. Adaptive cruise control systems that can be used in automobile industry to monitor distance and speed are described in this report. As a typical example, the principal operation of a laser guided mobile robot using a laser navigation system is also described.     

面向对象的柔性设计与控制理论(IV)

将可视化的面向对象技术应用到计算机控制领域,借助COM(CompoundObjectModel)思想,实现了计算机控制的可视化和模块化的应用平台,用户可根据自己需要通过已有的模块随意搭建各种计算机控制系统,实现了控制系统的“设计灵活、简洁、方便;控制实时、智能、鲁棒”。     

A framework for heading-guided recognition of human activity

A combined 2D, 3D approach is presented that allows for robust tracking of moving people and recognition of actions. It is assumed that the system observes multiple moving objects via a single, uncalibrated video camera. Low-level features are often insufficient for detection, segmentation, and tracking of non-rigid moving objects. Therefore, an improved mechanism is proposed that integrates low-level (image processing), mid-level (recursive 3D trajectory estimation), and high-level (action recognition) processes. A novel extended Kalman filter formulation is used in estimating the relative 3D motion trajectories up to a scale factor. The recursive estimation process provides a prediction and error measure that is exploited in higher-level stages of action recognition. Conversely, higher-level mechanisms provide feedback that allows the system to reliably segment and maintain the tracking of moving objects before, during, and after occlusion. Heading-guided recognition (HGR) is proposed as an efficient method for adaptive classification of activity. The HGR approach is demonstrated using “motion history images” that are then recognized via a mixture-of-Gaussians classifier. The system is tested in recognizing various dynamic human outdoor activities: running, walking, roller blading, and cycling. In addition, experiments with real and synthetic data sets are used to evaluate stability of the trajectory estimator with respect to noise.     

一种面向电冰箱测试的计算机网格系统

介绍了一种电冰箱测试计算机网格系统。利用该网格系统，把企业遍布在全国、分布在Internet上的各电冰箱测试系统，整合为一台虚拟计算机上的电冰箱测试系统，实现整个企业冰箱测试的统一监控、查询、统计分析，为企业冰箱质量的宏观控制提供可靠依据，给电冰箱生产相关企业提供了一种计算机网格应用模型。