欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
以往的水平集算法都只有一个单一的速度函数，在零水平集的演化过程中，能量函数最小化是一个很复杂的过程，而单一的速度函数存在很多问题．在此基础上，根据不同分割区域属性的异同，提出了一种具有多个速度函数的多水平集分割算法：以不同的待分割区域构造多个不同的水平集函数，相应地构造多个不同的速度函数．多个零水平集同时演化，相互作用，以达到分割的目的．该方法不但提高了分割的精度，而且能够很好地解决单一速度函数水平集算法难以处理的边界缺口问题．将此算法应用于医学MRI和CT的图像分割，得到了很好的分割结果．
英文摘要：
All of the former level set algorithms have only one level set function and only one speed function, and it is a complex procedure to minimize the energy function during the evolvement of the zero-level-set. Furthermore, there are a lot of problems in this single speed function. In this paper, a new multi-level-set algorithm with multiplicate speed functions is proposed according to the different properties of different objects： Different level set functions are constructed in different regions, and so are different speed functions accordingly; many zero-level-sets are evolved at the same time and act on one another in order to segment. This method not only enhances the accuracy of segmentation, but also solves the bounder gap problem well, which is quite a puzzle for single level set algorithm. Perfect results are achieved when this method is applied to segment the MR and CT images.
同期刊论文项目
同项目期刊论文
The roles of visual expertise and visual input in the face inversion effect: Behavioral and neurocom
Cross-Race Preferences for Same-Race Faces Extend Beyond the African Versus Caucasian Contrast in 3-
Recent Advantages in the Data Analysis Method of Functional Magnetic Resonance Imaging and its Appli
Theodore Smith, and Andrew F. Laine. A partial intensity invariant feature descriptor for multimodal
A fast bioluminescent source localization method based on generalized graph cuts with mouse model va
Detecting faces in pure noise images: a functional MRI study on top-down perception , Vol:19 (2): 22
Source Reconstruction for spectrally-resolved bioluminescence tomography with sparse a priori inform
Spatiotemporal modulation of central neural pathway underlying acupuncture action: a systematic revi
Comparison of visual cortical activations included by electro-acupuncture at vision and nonvision-re
Spectrally-resolved bioluminescence tomography with the third-order simplified spherical harmonics a
Partial correlation investigation on the default mode network involved in acupuncture: an fMRI study
Spectrally resolved bioluminescence tomography with adaptive finite element analysis: methodology an
A study about neural mechanism of face processing based on fMRI ， ， December 2007 ， Vol.17, No.12, p
Design and Implementation of an Optical Simulation Environment for Bioluminescent Tomography Studies
Registration of Brain MRI/PET Images Based on Adaptive Combination of Intensity and Gradient Field M
期刊信息
位置：