Two- and three-dimensional image reconstructions from stained and autoradiographed histological sections

A complete system has been developed to utilize histological serial sections for two- and three-dimensional image reconstructions. Eighty to 120 sections are digitized using a personal computing system augmented with a imaging board and CCD camera. The image files are transmitted to a VAX computer for processing and image reconstruction, and the processed images are transmitted back to the personal computer for display and recording using a film recorder or PostScript printer. The software developed for the system allows serial sections to be placed into proper registration in a 256(3) array, 256 grey levels. Autoradiographs of the sections are obtained in the presence of appropriate standards which are used to recalibrate grey levels to represent linearly the radioactivity of each pixel in the sections and scale the values to allow maximum use of the grey scale. Starting from coronally sectioned material the system has been used to analyse and reconstruct rat nasal turbinates. In two dimensions horizontal and sagittal sections have been obtained while in three dimensions back-to-front and surface-rendered images have been constructed. Useful rendering of differential metabolic activity within an organ of complex geometry has been obtained, and there appears to be no reason why the system cannot be used for any material for which serial sectioning is appropriate.     

飞机显示器自动测试系统设计

为了克服传统飞机显示器测试手段存在的效率低、成本高等弊端,研制了一种基于工控机、虚拟仪器技术的自动测试系统,并详细介绍了系统的整体结构以及硬件、软件设计方法。该系统利用工控计算机的强大功能,硬件采用电路模块化设计技术,成功实现了飞机显示器的显示与通信;软件完成信号控制、测试结果分析以及显示。该系统采用了现代化模块设计思想和手段,检测速度快、可靠性高、扩展性强,实现了对飞机显示器的自动化测试。     

VB图象处理技术在房产管理系统中的应用

介绍了一个自己开发的以电子地图取代了纸地图 ,以数据库取代了档案袋 ,可以用电脑选房购房和做房地产经营的系统。解决了系统开发时遇到的地图显示、查询和定位等关键技术问题。将VB图象处理技术用于房产管理中还是比较先进的。     

基于World Wind移动端的地质数据野外采集系统

针对传统的野外地质数据采集与数字化工作步骤繁琐、效率低、工作周期长等问题,研发了一种基于World Wind移动端的地质数据野外采集系统,系统集成了World Wind地图技术、网络通信技术、多线程技术和数据存储技术.重点阐述了定位模块、数据录入模块、实体投影模块以及三维展示模块的具体实现方法,本系统的研发实现了野外地质工作的信息化采集、浏览和展示,为地质工作人员提供便捷的数据录入方式,推动地矿工作数字化、信息化、现代化的向前发展.     

基于虚拟现实技术的信息管理系统设计

虚拟技术近年来发展非常迅速,在采用虚拟现实技术构建数据中心的基础上,结合物联网技术、图形图像识别技术搭建一个智慧3D虚拟信息管理系统。基于图形图像技术以3D可视化的呈现管理方式,使数据中心的管理更加直观,管理人员可以更加主动、方便的进行管理。系统采用C/S的软件体系结构,使用3D MAX软件对建筑物、道路、树木、机房场景和设备进行建模、贴图和模型烘焙,然后将用3D MAX软件建立的模型转换成fbx文件导入到Unity 3D软件中,通过对三维场景的编辑、开发,调用MS SQL Server数据库实现对机房中每个机柜、服务器、网络设备的智能导航以及属性、状态信息的显示等功能,实现数据中心信息管理系统的设计。系统投入业务使用后,运行流畅,操作设备时真实性、交互性较强,极大提高了现场代入感。     

三维视景仿真系统中仿真过程管理的研究

三维视景仿真系统的仿真过程管理一直是计算机图形学领域的热点之一。三维视景仿真系统的研究主要集中在虚拟环境的真实性方面,仿真过程管理的研究还没有被很好地解决。文中按照功能将三维虚拟视景仿真系统分为七个模块：数据输入、键盘输入、配置文件、消息映射、场景控制、仿真环境显示、数据记录;又从用户角度划分出三个模块：输入模块、处理模块和输出模块。同时,文中提出了配置文件和三维模型XML描述两种关键方法,分别用来存储仿真环境相关数据和简化模型调用方式,提高了虚拟仿真系统的通用性。此方法在三维视景仿真系统的开发过程中成功地进行了应用。     

A straightforward GINO-F line-map editor

A straightforward interactive system for editing a digitized line-map is described here. The map is represented by a pair of forward-pointer linked-lists, the first containing the digitized point-strings, the second an index. Program control commands are supplied via the screen cursor, and allow control of the display, context-based identification of particular digitized points, and basic editing facilities such as point movement, insertion, omission, etc.     

嵌入式掌上娱乐系统

在UP-TECH S3C2410 DVK1.1开发平台下,设计并实现了一个触摸式的嵌入式掌上娱乐系统。本系统主要包括多媒体播放器和游戏的基本功能。本系统可以播放现有的大多数的音频视频文件;设计了嵌入式游戏,增加了系统的娱乐性。使用触摸屏方便作为人机交互的平台。采用跨平台性能良好的Qt4设计了应用程序和人机界面,界面友好,汉化显示,美观,操作简便,运行流畅。整个系统模块化设计,充分考虑了软件系统自身所占的存储空间以及可扩展性,具有广阔的市场前景。     

应用TeeChart控件实现数据曲线分析

为满足工业控制等领域对数据进行曲线分析的需要,应用TeeChart控件,对需要实时曲线或历史曲线方式的数据,实现显示、对比等分析功能,并且分析结果可以保存为各种文件形式.给出了VC 软件开发环境下的相关实现代码.     

基于物联网的升降机远程监控平台

本设计是对现有升降机监控系统的信息化升级改造,实现升降机工作状态的数据采集与记录,并在本地显示器和远程监控平台上动态呈现和实时处理.整个系统分下位机数据采集和上位机软件监控两部分,下位机采集现场升降机PLC、变频器等工作参数,通过H7710(GPRS模块)发送到服务器的指定端口,数据接收采用Apache MINA框架,数据存储到oracle数据库.上位机监控软件采用B/S模式,用户根据所授予的权限能够实现对所属公司设备远程管理、信息查询、报警处理等操作.实际应用证明,该监控系统性能稳定,设计方法合理,可以广泛应用于升降机监控领域.     

MAIL: Micro aided learning

The National Extension College needed a system which would provide fast, detailed, feedback to thousands of correspondence students on a wide range of courses. RSVP and CADE were examined but found to be too complex and expensive. The author therefore developed MAIL which can be run on a BBC Microcomputer. MAIL's features include: a system which enables lecturers/course designers to produce comment files for their test material; a system which generates one to three page personalised student letters from those comment files; full student record maintenance; the capacity to link MAIL to, say, an already existing computer system in a college. Particular care has been taken to ensure that users of MAIL do not need any knowledge of computers.     

某遥测系统数据记录设备软件设计

针对目前某遥测系统信号记录设备,设计一种遥测信号记录设备软件,可实现对记录设备数据的传输、存储、分析和波形再现等功能.本遥测信号记录设备软件采用VB编写主控程序,可配合遥测信号记录设备完成读数、存储、设备擦除等操作,可对已保存的数据文件进行数据分析操作,并使用了TeeChart 控件完成了数据的波形再现操作.测试结果表...     

Filematch: a format for the interchange of computer-based files of structured data

The structure of data in computer-based files is information which may not be explicit in the files themselves, but is incorporated in part in the computer software designed to process the files. If a computer-processable file of data is to be processed using a “system” other than the one used to generate the file initially, conversion of the file to another format is normally necessary. A format, called FILEMATCH, is presented which for structures encountered in earth science data, incorporates the structural information in the files themselves, thus providing a medium for interchange of files among a variety of software systems.     

煤矿瓦斯地质图管理信息系统的开发

以新登煤矿信息化建设为例,介绍了一种基于GIS应用软件系统MapInfo及其二次开发控件MapX4.5的煤矿瓦斯地质图管理信息系统的设计方案;分析了建立瓦斯地质图信息数据库的工作流程,详细介绍了该系统中图层管理、数据编码、专题图信息展示、瓦斯突出区域预测人工神经网络分析、瓦斯突出事故树分析及瓦斯地质变量趋势面分析等模块的设计。实际应用表明,该系统能根据煤矿瓦斯地质信息对瓦斯地质规律进行有效的数值化、可视化分析。     

卫星通信系统的计算机测控实现

卫星通信系统长期可靠稳定运行保证,在一定程度上取决于测控系统;简要介绍了卫星通信系统基本组成和测试原理,对比以前人工手动的系统测控方法,采用了基于VXI和VISA相结合的技术,实现了一种卫星通信系统的计算机自动测控方案;介绍了采用该方案的硬、软件组成结构和实现方法,以及实施后的试验分析结果显示及精度,效率优于人工测试方法,同时也为卫星通信系统稳定可靠运行提供了更好的保证;最后结合最新的技术在测控领域的发展和数据采集遥测遥控领域中的应用提出改进建议和方法.     

Implementation of structured display files in interactive colour graphics

This paper discusses the various types of data structure used in computers, analyses their advantages and disadvantages, and assesses their suitability for use in microprocessor-based interactive computer graphics. Its main purpose is to define a display file structure which introduces levels of hierarchy amongst the elements of computer-generated images. The use of structured display files arises from the need to assist the user of an interactive system by supplying the software tools required to allow easy manipulation of the image contents.     

基于DSP的无人飞行器数据采集系统的设计

现有无人飞行器数据采集均由机载计算机主处理器完成,效率较低,为了提高效率,解决数据采集的可靠性、实时性及精度等问题,设计了一种基于DSP处理器的数据采集系统,该数据采集系统能够对54路模拟量进行巡回采集,给出了系统的软硬件实现方法,在数据采集结束后,系统通过双端口RAM与机载计算机主处理器进行数据传递;为了提高DSP片内ADC的采集精度,()了片内ADC的软硬件校正方法;实验证明,该系统具有较高的可靠性,能够满足飞行控制系统对传感器数据采集的实时性及精度要求.     

基于OpenGL的DICOM医学图像读取和显示

DICOM 3.0是医院各影像设备所遵循的标准,该标准的文件一般不被现有的图像处理软件所支持.通过对医学数字成像和通信(DICOM)标准的研究,编写了DICOM文件的读取与显示程序,使得普通电脑也可以显示DICOM标准的医疗影像图片.为医疗影像的三维重建、医生对病灶处的诊断以及模拟手术的实施提供了前期技术支持,有助于医学资源的共享.     

Representing scientific data sets in KML: Methods and challenges

Virtual Globes such as Google Earth and NASA World Wind permit users to explore rich imagery and the topography of the Earth. While other online services such as map servers provide ways to view, query, and download geographic information, the public has become captivated with the ability to view the Earth’s features virtually. The National Snow and Ice Data Center began to display scientific data on Virtual Globes in 2006. The work continues to evolve with the production of high-quality Keyhole Markup Language (KML) representations of scientific data and an assortment of technical experiments. KML files are interoperable with many Virtual Globe or mapping software packages. This paper discusses the science benefits of Virtual Globes, summarizes KML creation methods, and introduces a guide for selecting tools and methods for authoring KML for use with scientific data sets.