基于阈值的图像分割方法

通过分析图像阈值分割方法的基本原理。得出直方图闽值分割方法以及迭代阈值图像分割，并通过VC＋＋6．0加以实现。分析图像分割结果，并对两种阈值分割方法进行利弊分析。     

常用数字图像分割算法研究

图像分割是图像处理中的一项关键技术,发展至今没有一个通用的方法和标准,是一个图像处理领域的经典难题。对数字图像处理中的图像分割作了简要介绍,对常用的数字图像分割算法进行了概括和阐述,并用VC＋＋工具进行了实现和展示,对从事该领域工作的人员有一定的启发作用。     

彩色C-V方法及其在印刷网点图像分割中的应用

将Chan和Vese提出的基于Mumford-Shah模型的图像分割方法(C-V方法)由灰度分割扩展到彩色分割，并给予一定改进。提出了一种可以有效分割彩色图像的彩色C-V方法，使得图像中的色度信息得到充分利用；对原始C-V模型进行改进，增强了全局特性，同时考虑到人眼视觉感知，采用合适的色彩空间；将该方法应用于印刷网点图像分割。实验表明，彩色C-V方法用于分割边缘模糊和噪声污染较为严重的网点图像时，效果大大优于传统的分割方法。     

通过计算机网络实现远程实验

对于课题“机电类专业远程实验方法和装置”，我们介绍了通过计算机网络实现微机之间图像和命令的远程传输与控制，讨论在屏幕图像的抓取、分割以及位图数据流的压缩，解压缩方式，简单介绍了用C＋＋Builder语言实现程序编程。     

基于多分辨率的分水岭图像分割算法

针对分水岭分割算法的2个缺陷：耗时较长和过分割问题，该算法在低分辨率图像上进行分水岭分割，提高了分割的速度；由低分辨率图像返回到高分辨率图像时，采用了一种基于边缘信息的合并函数，避免了边缘信息的丢失，保证了分割的准确性。该文设计了一种基于梯度图像的噪声抑制方法，可抑制高斯噪声对梯度图像的影响，有效避免了过分割问题。实验结果证明，该算法兼顾了效率和分割的准确性。     

一种SVM与区域生长相结合的图像分割方法

作为一种全局门限处理方法,支持向量机图像分割方法不能完成对图像进行精细分割，其分割结果需要其他分割方法进一步处理。提出一种结合支持向量机和区域生长的交互式分割方法,不仅可有效剔除与感兴趣区域特征类似的非目标区域，而且把为SVM选择训练样本和为区域生长选择种子点两个步骤合二为一，从而提高了图像分割质量和交互式分割方法的自动分割能力。     

基于小波变换的SAR图像分割

SAR(合成孔径雷达)图像包含有相干斑噪声，传统方法不能很好地对SAR图像进行分割，该文结合SAR图像和小波变换多分辨分析的特点，提出了一种新的SAR图像分割方法。首先利用小波变换提取SAR图像的纹理特征信息，然后根据SAR图像噪声在小波域中的分布特点对SAR图像进行滤波，最后以SAR图像小波能量纹理特征和滤波后的灰度组成特征向量对SAR图像进行分割。实验结果表明，该方法是一种有效的SAR图像分割方法。     

基于梯度的混合Mumford-Shah模型医学图像分割

针对C-V法的水平集图像分割法缺少局部控制能力等问题，将基于边缘的几何主动轮廓线模型和基于区域的C-V法两者结合起来，提出了基于梯度的混合Mumford-Shah图像分割模型HMSG。给出了HMSG模型的参数设置准则，在分割的初期加大模型中全局特征项的权值，在分割的后期则加大局部特征项的权值，以提高模型的图像分割能力。对合成图像与医学图像的分割实验结果表明，该方法优于C-V方法对于含有噪声和边缘模糊的非二值图像的分割，能够较为准确地提取图像边界，可以有效提高图像分割整体性能。     

一种优化的文档图像分割方法

文档图像在数字图书馆、电子商务以及电子政务等工程中已获得广泛应用。如何对文档图像进行有效的转换、存储和传输，成为人们研究的焦点。将文档图像分割成不同的区域，根据不同区域的特点分别进行处理，成为一种有效的解决方案。本文在传统的块分割和图层分割方法的基础上，提出了一种优化的文档图像分割思路，对这两种方法进行了合理的综合处理，能够取得更好的效果。     

基于全卷积深度学习网络的视频图像背景分割方法研究

针对传统视频图像背景分割方法效率低、抗干扰能力弱、层次模糊等问题，基于全卷积深度学习网络算法研究了一种视频图像背景的分割方法。应用全卷积神经网络算法，完成视频图像背景的特征提取，构建结构化学习模块，再利用深度学习网络实现视频图像背景的多模态特征融合，基于损失函数建立视频图像背景分割模型。结果显示，对于随机的10组视频图像数据包，设计方法完成分割处理所用时间的平均值为15.03min，像素准确率均值为99.24%，分割区域间对比度均值为0.91，区域内一致性测度值均值为9.52，分割合理性均值为0，表明本次设计方法有效改善了视频图像背景的分割质量和分割效果，具有较高的精准性和完整性。     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。