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| 海量医学数据场的快速多分辨率体绘制方法 | |
| 引用本文： | 李彬,田联房,陈萍,王立非,毛宗源. 海量医学数据场的快速多分辨率体绘制方法[J]. 生物医学工程学杂志, 2008, 25(5) |
| 作者姓名： | 李彬 田联房 陈萍 王立非 毛宗源 |
| 作者单位： | 1. 华南理工大学,自动化科学与工程学院,广州,510640 2. 广州医学院,第一附属医院,核医学科,广州,510120 3. 广州中医药大学,祈福医院,影像中心,广州,511495 |
| 基金项目： | 国家自然科学基金资助项目(30570458);;广东省自然科学基金资助项目(05006530);;广州市番禺区科技攻关项目资助(2005-Z-55-1) |
| 摘 要： | 基于小波和Shear-Warp算法，提出一种快速多分辨率体绘制方法（Fast Multi—resolution Volume Rendering Method，FMVRM）。本算法首先基于小波对体数据进行压缩；接着，结合所选的分辨率，利用不透明度传递函数（Opacity transfer function，OTF）引导数据的解压；最后，基于Shear—Warp算法，利用数据结构基于子数据块的队长编码（Block—based run length encoded，BRLE）和预合成体绘制技术，实现快速而高质量的体绘制。实验证明该方法不仅效率高，而且显示效果好。 |
| 关 键 词： | 小波 多分辨率 体绘制 Shear～Warp 医学图像 数据压缩 |
Fast Multi-resolution Volume Rendering Method of Large Medical Data Sets |
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| Li Bin,Tian Lianfang,Chen Ping,Wang Lifei,Mao Zongyuan. Fast Multi-resolution Volume Rendering Method of Large Medical Data Sets[J]. Journal of biomedical engineering, 2008, 25(5) | |
| Authors: | Li Bin Tian Lianfang Chen Ping Wang Lifei Mao Zongyuan |
| Affiliation: | College of Automation Science and Engineering;South China University of Technology;Guangzhou 510640;China;Department of Nuclear Medicine;The First Affiliated Hospital of Guangzhou Medical College;Guangzhou 510120;China;Image Center;Clifford Hospital;Guangzhou University of Traditional Chinese Medicine;Guangzhou 511495;China |
| Abstract: | A Fast Multi-resolution Volume Rendering Method (FMVRM) based on wavelet and Shear-Warp is herein proposed. In this method, the medical volume data is compressed using wavelet transformation first. Then based on the set resolution, the medical volume data is decompressed guided by Opacity transfer function (OTF). Finally, the 3D medical image is reconstructed on the basis of Shear-Warp using Block-based run length encoded (BRLE) data structure, in which, the aliasing artifacts resulting from under-sampling ... |
| Keywords: | Wavelet Multi-resolution Volume rendering Shear-Warp Medical image Data compression |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |