QIU Tianshuang   

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Paper Publications

Title of Paper:基于全局和区域可伸缩拟合局部熵活动轮廓模型的超声图像分割

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Date of Publication:2019-03-25

Journal:生物医学工程研究

Volume:38

Issue:1

Page Number:37-42

ISSN No.:1672-6278

Key Words:超声图像分割;活动轮廓模型;区域可伸缩拟合局部熵;水平集方法;Chan-Vese模型

Abstract:针对区域可伸缩拟合局部熵(region-scalable fitting based on local entropy,RSF_LE)模型图像分割效率低的问题,本研究提出一种改进的RSF_LE模型.定义带有加权局部灰度拟合项以及辅助的加权全局灰度拟合项的能量泛函,其中加权局部灰度拟合项负责对目标边界附近的轮廓进行诱导,使其靠近目标物边界,加权全局灰度拟合项利用图像的全局信息来引导远离目标的轮廓向目标靠拢,该方法可以克服传统的RSF_LE模型分割算法效率低下的问题,并提高了该方法的鲁棒性.

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