applying the interactive volume rendering algorithm as the core technology and combining other computer visualization and image processing technologies, a way of visualizing the volume data obtained by confocal microscopy has been set up . related techniques include confocal data preprocessing, rendering the specimens " surface structure by the marching cube algorithm, rendering the specimens " internal structure by the interactive volume rendering algorithm, 4d dynamic visualization and a series of interactive technologies . furthermore a system dataset is built to manage volume data, preprocess results, rendering results and analytic results 本研究以交互体绘制算法为核心并结合其它三维可视化技术和图像处理技术,形成了一整套比较完善的共聚焦图像可视化的方法,包括:共聚焦数据的预处理、基于marchingcubes算法的样本表面绘制、基于交互体绘制算法的样本内部结构的可视化、四维动态可视化以及一系列交互分析手段,同时采用系统数据库对体数据及其预处理结果、可视化结果和交互分析结果进行管理,从而建立了共聚焦显微图像三维可视化与分析系统。
applying the interactive volume rendering algorithm as the core technology and combining other computer visualization and image processing technologies, a way of visualizing the volume data obtained by confocal microscopy has been set up . related techniques include confocal data preprocessing, rendering the specimens " surface structure by the marching cube algorithm, rendering the specimens " internal structure by the interactive volume rendering algorithm, 4d dynamic visualization and a series of interactive technologies . furthermore a system dataset is built to manage volume data, preprocess results, rendering results and analytic results 本研究以交互体绘制算法为核心并结合其它三维可视化技术和图像处理技术,形成了一整套比较完善的共聚焦图像可视化的方法,包括:共聚焦数据的预处理、基于marchingcubes算法的样本表面绘制、基于交互体绘制算法的样本内部结构的可视化、四维动态可视化以及一系列交互分析手段,同时采用系统数据库对体数据及其预处理结果、可视化结果和交互分析结果进行管理,从而建立了共聚焦显微图像三维可视化与分析系统。
in the thesis a volume rendering algorithm is put forward using shear-warp factorization of the viewing transformation and two-pass classification, it utilizes the coherence of volume data, classifies the data for the first pass and encodes the volume data using a run encoding, the encoded data is classified for the second pass when it is rendered . using the feature for two pass classification, it uses octree data structure speed up the rendering, realizes a very good volume rendering algorithm 本文提出了两次分类错切变形体绘制算法,该算法充分发掘体数据的一致性,首先对数据进行第一次分类,对第一次分类的结果进行行程编码,实现了数据的压缩,对压缩的体数据进行第二次分类绘制;同时依据两次分类的特点,利用八叉树进行加速,实现了有效的体绘制算法。
in the thesis a volume rendering algorithm is put forward using shear-warp factorization of the viewing transformation and two-pass classification, it utilizes the coherence of volume data, classifies the data for the first pass and encodes the volume data using a run encoding, the encoded data is classified for the second pass when it is rendered . using the feature for two pass classification, it uses octree data structure speed up the rendering, realizes a very good volume rendering algorithm 本文提出了两次分类错切变形体绘制算法,该算法充分发掘体数据的一致性,首先对数据进行第一次分类,对第一次分类的结果进行行程编码,实现了数据的压缩,对压缩的体数据进行第二次分类绘制;同时依据两次分类的特点,利用八叉树进行加速,实现了有效的体绘制算法。
the result shows that the sufficient and necessary condition of the quadratic rational b-spline curve's curvature monotony is similar to the quadratic rational bezier curves ", but its condition is some different from the quadratic rational bezier curves " curve's rendering algorithm is an important content in computer graphics, cad 曲线的生成算法是计算机图形学的重要内容。对于一些基本曲线,如直线,圆,椭圆等,都有快速生成算法,如画直线的bresenham算法,dda算法,画圆的bresenham算法,中点法,正负法,pitterway的椭圆及抛物线绘制算法等等。