| 一种可调整步长的适应性图像目标轮廓采样方法 |
| |
| 引用本文： | 王蔚林,王立功,于甬华,王世杰,罗立民.一种可调整步长的适应性图像目标轮廓采样方法[J].数据采集与处理,2004,19(1):21-27. |
| |
| 作者姓名： | 王蔚林 王立功 于甬华 王世杰 罗立民 |
| |
| 作者单位： | 1. 东南大学生物医学工程系,南京,210096
2. 山东省肿瘤医院放疗科,济南,250117 |
| |
| 摘 要： | 为了更有效地获得三维医学图像，提出了一种可调整步长的适应性图像目标轮廓采样方法。直接获取自临床的层阃间距相对较大的医学图像数据，首先经由图像预处理和图像目标轮廓插值等前期数据预处理操作，然后采用本文提出的一种可调整步长的适应性图像目标轮廓采样方法对图像目标轮廓线上的点进行适应性采样，最后给出了图像目标的三雏表面显示效果图。实验结果证实了方法的可靠性和有效性。该采样方法既保持了图像目标轮廓的尖锐特征和拓扑结构，又较好地实现了数据压缩。
|
| 关 键 词： | 适应性图像 轮廓采样 可变步长 三维显示 图像预处理 医学 |
| 文章编号： | 1004-9037(2004)01-0021-07 |
| 修稿时间： | 2003年9月20日 |
Adaptive Step-Variable Sampling Method for Image Object Contour |
| |
| WANG Wei-lin ,WANG Li-gong ,YU Yong-hua ,WANG Shi-jie ,LUO Li-min.Adaptive Step-Variable Sampling Method for Image Object Contour[J].Journal of Data Acquisition & Processing,2004,19(1):21-27. |
| |
| Authors: | WANG Wei-lin WANG Li-gong YU Yong-hua WANG Shi-jie LUO Li-min |
| |
| Affiliation: | WANG Wei-lin 1,WANG Li-gong 1,YU Yong-hua 2,WANG Shi-jie 1,LUO Li-min 1 |
| |
| Abstract: | To research three-dimension medical images more effectively, an adaptive step-variable sampling method for image object contour is proposed. Firstly the object contours on the images are preprocessed and interploated, and the images are directly acquired from clinical practice and are spaced relatively sparse. Then the proposed step-variable contour sampling method is used to adaptively sample the processed contours. Finally, the 3D rendering for the image object is given. Theoretical and experimental results indicate that the method is reliable and valid. Results prove that the sampling method can maintain the acute characters and topology of the object contours on the images and attain the aim of data compression. |
| |
| Keywords: | contour interpolation step-variable contour sampling 3D rendering |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
