Illumination system construction of computer vision system is studied and a double line space crossing illumination system is built , which results in effective settlement of disparity between illumination system and image acquisition in moving object testing problem . data accuracy when using three cameras to capture information is further researched , and three cameras system error module and calibration method are determined 针对视觉环境中光照系统的构建问题，确定了双列交叉空间光照视场，有效的解决了动态目标检测中，光照系统环境与摄像机图像采集的一致性问题；对三台摄像机采集信息输入过程中的数据精确性问题进行了深入的分析，确定了三台摄像机之间系统误差分析模型、及标定方法。
If capp and cam system want to use of these information about a part in cad , they have to transfer these information to proper style , and then they can recognize and use them . these years , there are many researches about how to make full use of the information in cad system and how to describe a part in other systems . during these researches , many methods about part information description have been developed , such as gt code method , language description method , knowledge description method , feature description method , and so on 多年来，为了使capp 、 cam等后续系统能够有效地利用cad系统中相关的零件信息，亦即对零件信息进行合理的描述，人们进行了大量的研究，提出了分类编码法、语言描述法、知识表示描述法、基于形状特征或表面元素的描述法等各种方法对零件信息进行描述，但是，这些方法都需要人来对零件图纸进行识别和分析，即需要人工来对已设计好的零件图进行二次输入，由于输入过程繁琐、费时、易出错，因此这些信息描述方法无法满足信息集成的要求，也不能适应集成环境下capp系统的需要。
The thesis has maily been research in the implementaion of chinese character input methods which can be mastered without a specialized leaming , including keyboard input and olccrafter studying the structure of chinese character , we have classified chinese character strokes and coded chinese character with stroke strings 本篇论文主要研究了自然输入汉字方法(包括键盘输入和联机手写汉字输入)的实现，致力于解决实现汉字自然输入过程中出现的若干问题。这里所谓的自然输入汉字的方法，是指无需经过太多的学习和训练便能掌握的方法。
