Intergraph遥感图像处理与地理信息系统

本文主要介绍了美国Intergraph公司的遥感图像处理与地理信息系统,概要地阐述了该系统的硬件设备和软件模块功能,同时,从多方面介绍了该系统的应用领域及前景。     

聚乙烯材料自动图像处理检测软件系统研制

聚乙烯材料自动图像处理检测软件系统由电机控制．图像采集、图像拼接和图像处理与分析部分组成本文介绍了该系统的设计制作,并将其应用于试件内部缺陷的检验分析中,结果表明,该系统原理正确,结构可行,性能可靠。     

上海光源面探测器图像数据获取与处理系统设计

介绍了上海光源实验站面探测器图像数据的获取与处理系统设计。该系统应用Python语言及相关功能模块,实现了图像矩阵的获取、图像数据的处理和图像界面的显示。小角散射(SAXS)实验表明,该系统具有散射图像噪声去除、散射中心定位等核心功能。测试结果表明,该系统不仅完善了现有光束线站的控制和数据获取系统,而且为开展多种实验方法的图像在线处理打下了基础。     

BSRF形貌学实验站动态实验系统

介绍了ＢＳＲＦ形貌学实验站动态实验系统的各个组成部分，并着重对控制系统，图像捕获和处理系统作了详细介绍。     

基于DM642的图像压缩系统设计

介绍了采用TMS320DM642和FPlGA结构的实时图像采集及处理系统硬件设计和实现.系统包括图像采集缓冲模块、图像处理压缩模块和图像输出模块三大部分.DSP+FPGA架构灵活,能提高算法的执行效率,适合于实时图像处理.最终实现对高频帧图像信号的实时压缩,压缩比控制在20:1以上.     

大型集装箱检测系统中的图像分配网络及协同处理技术

本文介绍用于大型集装箱检测的图像分配网络系统。该系统由多个微机、工作站构成，形成一个计算机分布式处理系统。系统软件设计上采用多进程和进程间通信的技术，以实现多检查站并行工作的目的。     

基于通用串行总线的核乳胶观测与前期处理系统

简要介绍采用通用串行总线（universal serial bus,USB)系统组成的核乳胶观测和图像处理系统。该系统采用了简练的硬件设计和完善的软件处理，可极大提高观测效率和精度，尤其适用于高能、超高能重离子碰撞的事件。     

SXFEL和DCLS束流截面测量系统软件设计

介绍了SXFEL和DCLS束流截面测量系统的软件设计方法。该系统基于以太网和EPICS分布式系统,并采用EPICS-Python方式进行设计,实现了CCD相机和步进电机的控制,完成了图像采集数据的拟合处理。经SXFEL和DCLS在线运行和测试,该系统主要性能为:成像系统的像素分辨率为13.9μm,重复定位精度为22μm,图像刷新率在内触发模式下可达到66 Hz,满足加速器运行需求。     

~(60)Co货运列车检测系统数字减影检测技术研究

为克服传统~(60)Co货运列车检测模式中检查员易疲劳、查验效率低的不足,本文提出了一种实用的列车图像检测方法,该方法以一套标准图像库为基础,通过对车厢图像与标准图像的配准和数字减影处理,凸显出二者的差异,然后根据差异程度进行风险分级,从而使图像检查员有针对性地进行检查,提高了系统的检查效率。该系统已在中国多处铁路口岸装备运行。     

气体电离室时间响应函数的一种测量方法

在快速辐射扫描成像系统中，阵列气体电离室时间响应速度的快慢将直接影响图像的清晰度，介绍一种测量气体电室时间响应函数的方法，并通过反卷积处理图像数据，可以提高图像的清晰度。     

γ照相机图象处理系统

本文提出一个基于微机的γ照相机图象处理系统,它采用低档通用微机与专用数据采集、处理和显示硬件相结合的方案,大大提高处理速度并有较高的性能价格比。     

Test bed for real-time image acquisition and processing systems based on FlexRIO,CameraLink, and EPICS

Image diagnostics are becoming standard ones in nuclear fusion. At present, images are typically analyzed off-line. However, real-time processing is occasionally required (for instance, hot-spot detection or pattern recognition tasks), which will be the objective for the next generation of fusion devices. In this paper, a test bed for image generation, acquisition, and real-time processing is presented. The proposed solution is built using a Camera Link simulator, a Camera Link frame-grabber, a PXIe chassis, and offers software interface with EPICS. The Camera Link simulator (PCIe card PCIe8 DVa C-Link from Engineering Design Team) generates simulated image data (for example, from video-movies stored in fusion databases) using a Camera Link interface to mimic the frame sequences produced with diagnostic cameras. The Camera Link frame-grabber (FlexRIO Solution from National Instruments) includes a field programmable gate array (FPGA) for image acquisition using a Camera Link interface; the FPGA allows for the codification of ad-hoc image processing algorithms using LabVIEW/FPGA software. The frame grabber is integrated in a PXIe chassis with system architecture similar to that of the ITER Fast Controllers, and the frame grabber provides a software interface with EPICS to program all of its functionalities, capture the images, and perform the required image processing. The use of these four elements allows for the implementation of a test bed system that permits the development and validation of real-time image processing techniques in an architecture that is fully compatible with that of the ITER Fast Controllers. This paper provides a specific example of a pattern search in a movie, its real-time implementation, and a performance analysis of the entire platform.     

阵列探测器式实时辐射成像中的图像处理技术

结合本单位科研项目工业ＤＲ系统的研制，本文简述了图像处理技术的基本原理和方法，及其在阵探测器式实时辐射成像中的应用，并提供了有关图像处理的实例。     

医学影象数据库技术

本文从几个主要方面较系统介绍和论述了所研制的低价格、易普及的医学影象数据库系统,并以实例说明该系统具有海量存储、资料检索、图象处理、辅助诊断及会诊资料共享等功能。     

JAERI Takasaki in-air micro-PIXE system for various applications

In JAERI Takasaki, an in-air micro-PIXE system has been developed. This system enables multi-elemental mapping of samples in atmospheric environment with spatial resolution of 1 μm. Various research programs, such as biomedical research, dental study, environmental science and geology, have been started in recent years. Several related techniques for these applications were developed. A FTP server has been operated for the remote collaborators to share experimental data over the internet. We have developed image processing methods for elemental concentration analysis and a new beam monitoring technique in thick target irradiation.     

^60Co集装箱检测系统中的图像处理

本文分析了＾６０Ｃｏ集装箱检测的特点,提出了集装箱图像的几种特殊处理方法。设计了各种常规的二维数字图像处理算法,包括灰度增强,伪彩色增强,空间滤波,边缘增强,几何处理等。提出了在微机Ｗｉｎｄｏｗｓ９５或Ｗｉｎｔ ＮＴ环境下实现上述处理的方法。分析了在微机环境下提高图像处理速度的几种方法,达到了很好的效果。     

大型集装箱检测系统中的图像数字处理性能分析

由于物体对射线的吸收与物体密度成指数关系。大型集装箱检测系统利用这一物理原理，不经过开箱即可检查其中的物品。通过图像重建和处理，就能得到整个物体的透射图像。本文给出在工作站上实现辐射图像处理的具体方法及软件编程。     

Imaging performance evaluation in depth-of-interaction PET with a new method of sinogram generation:A Monte Carlo simulation study

In conventional PET systems,the parallax error degrades image resolution and causes image distortion.To remedy this,a PET ring diameter has to be much larger than the required size of field of view(FOV),and therefore the cost goes up.Measurement of depth-of-interaction(DOI)information is effective to reduce the parallax error and improve the image quality.This study is aimed at developing a practical method to incorporate DOI information in PET sinogram generation and image reconstruction processes and evaluate its efficacy through Monte Carlo simulation.An animal PET system with 30-mm long LSO crystals and 2-mm DOI measurement accuracy was simulated and list-mode PET data were collected.A sinogram generation method was proposed to bin each coincidence event to the correct LOR location according to both incident crystal indices and DOI positions of the two annihilation photons.The sinograms were reconstructed with an iterative OSMAPEM(ordered subset maximum a posteriori expectation maximization)algorithm.Two phantoms(a rod source phantom and a Derenzo phantom)were simulated,and the benefits of DOI were investigated in terms of reconstructed source diameter(FWHM)and source positioning accuracy.The results demonstrate that the proposed method works well to incorporate DOI information in data processing,which not only overcomes the image distortion problem but also significantly improves image resolution and resolution uniformity and results in satisfactory image quality.     

TC-SCAN集装箱检测系统图像检查软件的升级设计

介绍了近几年TC-SCAN集装箱检测系统图像处理技术的新进展和图像处理软件的升级设计，升级后的图像处理软件已经在各口岸投入使用，取得很好的效果。