科学计算可视化的应用研究
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摘要
理论、实验和计算科学是科学研究的三个支柱。作为科学研究的重要辅助手段，科学计算可视化在科学研究中发挥了重要作用。当今，在语义Web、Web服务、网格等Web新技术的推动下，科学计算可视化必将会在科学研究中扮演更加重要的角色。
本文的研究内容包括基于采样点的曲面编辑、示温漆彩色图像的量化与分割、MCNP仿真计算三维可视化软件平台、基于语义Web的科学计算可视化等可视化技术。
全文的主要内容如下：
(1) 首先对科学计算可视化的软件工具和算法的发展及其技术现状进行了综合性论述。分析了科学计算可视化软件工具、曲面绘制算法和彩色图像分割算法的技术类型和发展趋势。
(2) 对基于采样点的3D曲面绘制与编辑技术进行了深入的研究。探讨将标量自由变形技术(SFFD)和隐式曲面函数相结合，提高基于采样点的3D曲面绘制与编辑效率。在此基础上开发了一个包括曲面光滑、尖角、变形和布尔操作在内的三维模型的曲面编辑工具。
(3) 研究示温漆彩色图像的量化与分割方法。为了克服人工判读示温漆彩色图像存在的效率低、误差大等不足，实现示温漆彩色图像分析处理的数字化和自动化，研究示温漆彩色图像量化与分割的方法和流程。提出了满足工程精度的图像区域合并准则。最后和其它分割方法进行了实验对比。
(4) 研究基于组件技术的MCNP仿真计算三维可视化平台模型。分析了MCNP计算软件的前、后置处理和计算结果可视化的现状与不足，结合软件技
Theory, experiment and computational science are three pillars of scientific research. As a main means of scientific research, scientific visualization has had an important impact upon scientific research. Today driven by novel web technology such as semantic web, web services and grid, scientific visualization will play more important role on scientific research.
This dissertation research contents includes point-based surface editing , image quantization and segmentation of thermal paint, 3D visualization system model of MCNP, semantic web scientific visualization etc visualization techniques. The dissertation main contents is as follows:
(1) The developments and actualities of scientific visualization tools and algorithms are all-around discussed. The techniques styles and trends of scientific visualization tools, surface rendering and color image segmentation.
(2) A deep research on point-sampled 3D surface rendering and editing is made. In order to improve the efficiency of point- sampled 3D surface rendering and editing, the integration of scalar-field free-form deformation (SFFD) and implicit surface functions is explored. A 3D surface editing tool is developed, it includes smoothing, tapering, deforming, and Boolean operations.
(3) The methods of thermal paint image quantization and segmentation is researched. In order to overcome the shortcomings of low efficiency and determinate error produced by human identifying and, carry out the automation of thermal paint image analysis, the methods and procedure thermal paint image quantization and
本文的研究内容包括基于采样点的曲面编辑、示温漆彩色图像的量化与分割、MCNP仿真计算三维可视化软件平台、基于语义Web的科学计算可视化等可视化技术。
全文的主要内容如下：
(1) 首先对科学计算可视化的软件工具和算法的发展及其技术现状进行了综合性论述。分析了科学计算可视化软件工具、曲面绘制算法和彩色图像分割算法的技术类型和发展趋势。
(2) 对基于采样点的3D曲面绘制与编辑技术进行了深入的研究。探讨将标量自由变形技术(SFFD)和隐式曲面函数相结合，提高基于采样点的3D曲面绘制与编辑效率。在此基础上开发了一个包括曲面光滑、尖角、变形和布尔操作在内的三维模型的曲面编辑工具。
(3) 研究示温漆彩色图像的量化与分割方法。为了克服人工判读示温漆彩色图像存在的效率低、误差大等不足，实现示温漆彩色图像分析处理的数字化和自动化，研究示温漆彩色图像量化与分割的方法和流程。提出了满足工程精度的图像区域合并准则。最后和其它分割方法进行了实验对比。
(4) 研究基于组件技术的MCNP仿真计算三维可视化平台模型。分析了MCNP计算软件的前、后置处理和计算结果可视化的现状与不足，结合软件技
Theory, experiment and computational science are three pillars of scientific research. As a main means of scientific research, scientific visualization has had an important impact upon scientific research. Today driven by novel web technology such as semantic web, web services and grid, scientific visualization will play more important role on scientific research.
This dissertation research contents includes point-based surface editing , image quantization and segmentation of thermal paint, 3D visualization system model of MCNP, semantic web scientific visualization etc visualization techniques. The dissertation main contents is as follows:
(1) The developments and actualities of scientific visualization tools and algorithms are all-around discussed. The techniques styles and trends of scientific visualization tools, surface rendering and color image segmentation.
(2) A deep research on point-sampled 3D surface rendering and editing is made. In order to improve the efficiency of point- sampled 3D surface rendering and editing, the integration of scalar-field free-form deformation (SFFD) and implicit surface functions is explored. A 3D surface editing tool is developed, it includes smoothing, tapering, deforming, and Boolean operations.
(3) The methods of thermal paint image quantization and segmentation is researched. In order to overcome the shortcomings of low efficiency and determinate error produced by human identifying and, carry out the automation of thermal paint image analysis, the methods and procedure thermal paint image quantization and
引文
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