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一个普适的混合体绘制方法 被引量：1

A Hybrid Volume Rendering Method Using General Hardware
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摘要 为了提高普通硬件条件下各类重建数据的混合体绘制图像的视觉效果和效率,我们提出一个基于Shear-Warp的普适混合体绘制方法。首先利用Z-Buffer算法与RLE数据结构对各类重建数据进行预处理;接着,在合成中间图像的过程中依据精度要求选择二重重采样方法,并用即时插值中间切片的重采样方法解决采样过疏现象。最后,用OpenGL纹理技术绘制最终图像。实验证明该方法不仅效率高,而且显示效果好。 In order to improve the effect and efficiency of the reconstructed image after hybrid volume rendering of different kinds of volume data from medical sequential slices or polygonal models, we propose a hybrid volume rendering method based on Shear-Warp with economical hardware. First, the hybrid volume data are pre-processed by Z-Buffer method and RLE(Run-Length Encoded) data structure. Then, during the process of compositing intermediate image, a resampling method based on the dual-interpolation and the in...
作者 李彬 田联房 陈萍 毛宗源
机构地区 华南理工大学自动化科学与工程学院 广州医学院第一附属医院核医学科
出处 《生物医学工程学杂志》 EI CAS CSCD 北大核心 2008年第3期524-530,共7页 Journal of Biomedical Engineering
基金 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资助项目(2005-Z-55-1)
关键词 混合体绘制 SHEAR-WARP 医学图像 几何模型 插值 重采样 Hybrid volume rendering Shear-Warp Medical image Polygonal model Interpolation Resampling
分类号 TP391.41 [自动化与计算机技术—计算机应用技术]
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参考文献11

  • 1[2]Schmidt F,Marcelo G,Cezar P.Combined 3D visualization of volume data and polygonal models using a Shear-Warp algorithm.Computer&Graphics,2000; 24(4):583
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同被引文献12

  • 1BETKE M, HONG H, KO J P. Landmark detection in the chest and registration of lung surfaces with an application to nodule registration [ J]. Medical Image Analysis, 2003, 7( 1 ) :265-281.
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  • 4LEE S Y, WOLBERG G, SUNG Y S. Scattered data interpolation with multilevel B-Splines [ J]. IEEE Trans on Visualization and Computer Graphics, 1997, 3 ( 3 ) :228- 249.
  • 5RUECKERT D, SONODA L I, HAYES C, et al. Nonrigid registration using free-form deformations: application to breast MR images [J]. IEEE Trans on Medical Imaging, 1999, 18(8) :712-721.
  • 6FUMIHIKO I, KANROU O, KENICHI H. A data distributed parallel algorithm for nonrigid image registration [ J ]. Parallel Computing, 2005, 31 ( 1 ) :19-43.
  • 7STUDHOLME C, HILL D L G, HAWKES D J. An overlap invariant entropy measure of 3D medical images alignment [ J ]. Pattern Recognition, 1999, 32( 1 ) : 71-86.
  • 8HUANG S-C. Anatomy of SUV[ J]. Nuclear Medicine and Biology, 2000, 27 ( 7 ) : 643- 646.
  • 9XU Chen-yang, PRINCE J L. Gradient vector flow: a new external force for snakes[ C]//Proc of IEEE Conference on Computer Vision and Pattern Recongnition. 1997:66-77.
  • 10WILLAMS D J, SHAH M. A fast algorithm for active contours and curvature estimation [ J ]. CVGIP: Image Understanding, 1992, 55( 1 ) :14-26.

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生物医学工程学杂志
2008年 第3期

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