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本文重点讨论了平板幕和环形幕两种多通道系统的拼接技术,给出了实现方法。选用TCP协议建立了分布式通信环境,在Master端和Slave端的通信过程中通过添加最大相关等待时间机制对多通道系统进行优化,实现了大屏幕的多通道立体显示系统,给出了一个被动式多通道立体显示系统的硬件解决方案。实验结果表明,本系统在实时性、一致性以及显示效果上都有良好的表现。 相似文献
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本文全面介绍了3D立体显示屏的技术和发展前景,这种新型显示屏用于计算机和监视器中可以显示人眼所视相同的立体画面,因此成为信息技术发展史的一个新的里程碑。本文详细阐述了这种新系统的基本原理、发展历程、相关技术和市场前景等。 相似文献
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本文全面介绍了3D立体显示屏的技术和发展前景,这种新型显示屏用于计算机和监视器中可以显示人眼所视相同的立体画面,因此成为信息技术发展史的一个新的里程碑.本文详细阐述了这种新系统的基本原理、发展历程、相关技术和市场前景等. 相似文献
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论文分析了目前传统的灯饰设计所存在的不足,提出了客户与设计师协同设计的可行方案,详细介绍了基于Web3D的灯饰协同设计关键技术,包括灯饰模型交互设计和同步互斥技术,开发出了一个以客户为主,以设计师为辅并基于Web3D技术的网上协同设计系统,并通过实验验证了系统的可行性。 相似文献
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虚拟现实技术已经广泛应用于各个行业领域,虚拟教室是虚拟现实技术在现代教育中的应用之一,能够给学生以及使用者创建一个身临其境的环境。以南充职业技术学院语音教室的实景为研究对象,以建立南充职业技术学院虚拟语音教室为目的,重点探讨基于图形图像的建模技术,并对其交互式实验操作方式进行初步探索和研究,并且重点分析虚拟场景中的3D音频及探讨其实现,以期为其他虚拟现实中的场景建模提供参考。 相似文献
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Abstract Diakoptics methods for large scale networks have been widely studied and applied over the last decade. Most of the applications used single level diakoptics of a network into subnetworks. The previous works treat networks either by node tearing or by connecting all the tie lines at the same time [1, 6, 9, 12, 14]. In this paper, tearing is applied to hierarchically described networks and a new algorithm based on Gaussian elimination is presented. Using a multilevel algorithm, the new method tears a network into multilevels and always joins two subnetworks by a set of the lines recursively. Finally, the macromodel (solution model) of a large scale network is presented. 相似文献
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The q-mode problem is a combinatorial optimization problem that arises in the context of partitioning a given collection of data vectors with categorical attributes. A neighborhood search algorithm is proposed for solving the q-mode problem. This algorithm is based on a very large scale neighborhood that is implicitly searched using network flow techniques. The algorithm is evaluated through a computational experiment using randomly generated instances. The results show that in general this algorithm obtains very-good-quality local optima, and that in instances with strong natural clusters the algorithm consistently finds optimal or near-optimal solutions. 相似文献
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针对大规模地形三维可视化系统在不同性能计算机平台上运行速度的差异,提出了一种基于帧速率的地形渲染数据量负反馈自适应控制算法,该算法以数据量与帧速率关系模型为基础,通过获取精确的系统渲染周期耗时,计算符合帧速率要求的地形数据量,并进行动态数据调整.基于FLTK(和OpenGL的系统实验表明,该算法可以根据特定计算机平台的性能,快速调整渲染数据量,使地形可视化系统稳定运行干预先设定的帧速率区间.该算法有效增强了三维地形可视化系统的平台适应能力,同时算法思想对于类似系统负载与耗时关系的研究也有借鉴意义. 相似文献
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The use of the method of constraints for enforcing the zero divergence condition in vectorial finite-element schemes is discussed. An earlier implementation of the method was shown to produce the correct solution for a 3-D resonant cavity problem modeled by a single finite element. Partial success in extending the method to multielement cases is reported. The reduction in matrix size alone would justify the development of the technique for general multielement grids, but it will require the implementation of a global approach to the method of constraints 相似文献
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Abstract A decentralized stabilization problem for a large‐scale system composed of a number of subsystems is investigated. Using Lyapunov stability and the bounds of the solution of the Lyapunov equation, we derive two main results. The first result (Theorem 1) requires checking the negativity of a matrix containing two free parameters to test the decentralized stabilizability of the whole system. The second result (Theorem 2) determines the ranges of two free parameters to satisfy Theorem 1 such that the decentralized local state feedbacks guarantee the whole large‐scale system is stabilized. The matching condition for each subsystem is not necessary in this paper. The results are also summarized using a flow chart which represents the algorithm for decentralized stabilization. 相似文献
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基于光子计数探测器的能谱CT在材料分解、组织表征、病变检测等应用中具有巨大的潜力。在重建过程中,通道数的增加会造成单通道中光子数减少,从而导致重建图像质量下降,难以满足实际需求。本文从能谱CT重建的角度出发,将广义总变分向矢量延伸,利用奇异值的稀疏性,促进图像梯度的线性依赖,提出一种基于核范数的多通道联合广义总变分的能谱CT重建算法。在图像重建过程中,多层共享结构信息,同时保留独特的差异。实验结果表明,本文提出的算法在抑制噪声的同时,能够更有效地恢复图像细节及边缘信息。 相似文献
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Fibonacci序列在信息隐藏、密码学等领域具有广泛的应用,现提出一种能计算超大Fibonacci整数的快速算法,最大可以精确地计算第30万个Fibonacci整数,可以完全满足信息隐藏和密码学领域实时计算的需要. 相似文献
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E. Gregory 《低温学》1982,22(5):203-212
The February 1971 edition of this journal carried a ten page article by the author and his colleagues reviewing the then ‘state of the art’ in multifilamentary superconducting composites.1 At the time we attempted to cover in a fairly comprehensive manner the first decade of development of these materials since the construction of the first high field superconducting magnet.2 Now more than another decade of development has passed and obviously the field can no longer be reviewed comprehensively in the same few pages. This article will attempt to give a brief overview of these materials from the point of view of one engaged in their development and supply for large applications. Hopefully, the references to books,3,4 review articles,5,6 and the proceedings of the various conferences7–11 will serve as a source of further information for those who require more details. 相似文献