Shape-based interpolation of tree-like structures in three-dimensional images
Shape-based interpolation of tree-like structures in three-dimensional images
复制标题
三维图像中树状结构的基于形状的插值
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
E. Ritman
中科院分区：
文献类型：
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作者：
W. Higgins;C. Morice;E. Ritman
Many three-dimensional (3-D) medical images have lower resolution in the z direction than in the x or y directions. Before extracting and displaying objects in such images, an interpolated 3-D gray-scale image is usually generated via a technique such as linear interpolation to fill in the missing slices. Unfortunately, when objects are extracted and displayed from the interpolated image, they often exhibit a blocky and generally unsatisfactory appearance, a problem that is particularly acute for thin treelike structures such as the coronary arteries. Two methods for shape-based interpolation that offer an improvement to linear interpolation are presented. In shape-based interpolation, the object of interest is first segmented (extracted) from the initial 3-D image to produce a low-z-resolution binary-valued image, and the segmented image is interpolated to produce a high-resolution binary-valued 3-D image. The first method incorporates geometrical constraints and takes as input a segmented version of the original 3-D image. The second method builds on the first in that it also uses the original gray-scale image as a second input. Tests with 3-D images of the coronary arterial tree demonstrate the efficacy of the methods.
DOI：
10.1016/0895-6111(88)90049-3
发表时间：
1988
期刊：
Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society
影响因子：
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作者：
Samuel M. Goldwasser;R.Anthony Reynolds;D. Talton;E. Walsh
通讯作者：
Samuel M. Goldwasser;R.Anthony Reynolds;D. Talton;E. Walsh