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1.
运动目标跟踪是计算机视觉的一个中心研究问题,为视频内容的理解提供重要的信息。首先介绍了目标跟踪的国内外研究现状,重点归纳分析了运动目标跟踪方法的分类及其发展过程中的提出的各种算法,对其关键技术进行了剖析和比较。  相似文献   

2.
对需求跟踪方法进行了分析、归纳,认为需求跟踪方法应易于掌握、能跟踪复杂系统、能自动生成跟踪链、跟踪链维护简单、有工具和文档支持等特性。  相似文献   

3.
针对单一的跟踪技术存在的缺点,本文提出了一种主辅式的多模式图像跟踪技术,主跟踪的作用是快速获取目标的位置,辅跟踪的作用是提高跟踪的精度;主跟踪采用基于多特征的对比度跟踪方法,对比度跟踪成功后选取目标运动方向的最前缘点作为主跟踪的跟踪点;辅跟踪采用改进的归一化相关匹配的方法,归一化相关匹配成功后,在匹配点附近采用曲线拟合的方法获取跟踪点的亚像素精度;最后将主辅跟踪的跟踪点进行比较,按照最小二乘拟合的方法计算出最后的跟踪点位置.  相似文献   

4.
本文提出了一种新的轮廓跟踪方法--预测跟踪.它的特点在于:每测出一个边界点 即自动移动跟踪基准点至下一个边界存在状态,对每一个边界存在状态的一次判别即可找到 边界点,从而消除了其他方法在寻找边界点时的试探性.  相似文献   

5.
太阳跟踪方法综述   总被引:1,自引:0,他引:1  
文章简要介绍了几种主要的太阳跟踪方法,综述了太阳跟踪领域的国内外研究现状,详细叙述了太阳跟踪方法的分类、基本原理和特点,以及不同方法的优缺点和利用场合,并展望了中国太阳跟踪系统的未来发展方向.  相似文献   

6.
电视跟踪系统中图像目标的预测跟踪算法研究   总被引:4,自引:0,他引:4  
基于目标图像信息,研究了在短暂遮挡情况下,应用最小二乘法的N点线性及平方预测跟踪算法,并分析了跟踪预测值在正常跟踪条件下的作用。将提出的方法用于实际系统,效果较好。  相似文献   

7.
唐杉  徐强  丁炜 《计算机工程》2008,34(15):16-18
片上网络(NoC)技术使片上系统(SoC)的通信机制发生了根本改变,直接影响了SoC中处理器内核的实时跟踪技术。该文以ARM Coresight构架的实时跟踪机制为参考,分析了在NoC环境中实现实时跟踪数据传输的难点,提出相应的解决方案。通过对实验系统的仿真,验证了其中的关键技术。  相似文献   

8.
针对GPS信号跟踪问题,分析了伪码跟踪算法和载波跟踪算法,并给出了相应的FPGA实现方案,测试结果表明这种算法和实现方案有效实现了GPS信号中伪码和载波的精确跟踪.  相似文献   

9.
项目跟踪与控制是CMMI2级的一个项目管理过程域.其主要目的是要对软件开发实际过程有适当的可视性,使管理者能在项目的软件过程实施明显偏离软件计划时采取有效的纠正措施.介绍了在软件工程化管理平台ProiectMan中实现这个过程域的方法.  相似文献   

10.
在视觉目标跟踪领域,长时跟踪因存在更为复杂的遮挡、相似物干扰和目标消失等具有现实意义的挑战场景,而越来越被研究者所重视。传统长时跟踪算法存在精度低和效率低等问题,已经无法满足如视频监控和自动驾驶等领域对跟踪器性能的应用需求。目前,大量的研究工作通过引入深度神经网络快速推动了长时跟踪技术的发展。为了深入分析深度长时跟踪算法的现状与未来发展,通过对比长短时跟踪数据集及评价指标,初步界定了长时跟踪任务范畴,归纳了长时跟踪任务的需求和难点,并介绍了长时跟踪数据集及评价体系的发展。基于深度长时目标跟踪算法的设计框架,详细描述了框架各组成部分的设计思路。以长时跟踪策略为切入点深入分析了现有研究工作,归纳了不同模型的优缺点及特性。依据对现有研究工作的整理和总结,讨论了该领域面临的挑战,并对未来的发展方向进行了展望。  相似文献   

11.
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.  相似文献   

12.
European Community policy and the market   总被引:1,自引:0,他引:1  
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.  相似文献   

13.
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。  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
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  相似文献   

17.
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.  相似文献   

18.
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.  相似文献   

19.
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.  相似文献   

20.
《计算机科学》2007,34(4):148-148
Recent years have seen rapid advances in various grid-related technologies, middleware, and applications. The GCC conference has become one of the largest scientific events worldwide in grid and cooperative computing. The 6th international conference on grid and cooperative computing (GCC2007) Sponsored by China Computer Federation (CCF),Institute of Computing Technology, Chinese Academy of Sciences (ICT) and Xinjiang University ,and in Cooperation with IEEE Computer Soceity ,is to be held from August 16 to 18, 2007 in Urumchi, Xinjiang, China.  相似文献   

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