用于医学图像分割的判别式特征金字塔网络

IF 5.3 2区 医学 Q1 ENGINEERING, BIOMEDICAL
Xiwang Xie , Lijie Xie , Guanyu Li , Hao Guo , Weidong Zhang , Feng Shao , Wenyi Zhao , Ling Tong , Xipeng Pan , Jubai An
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引用次数: 0

摘要

医学场景图像的形状和尺度多样、背景复杂、边界模糊、外观相似,这对当前的器官分割方法提出了挑战。将自然场景图像中的物体分割方法直接推广到医学场景图像中,很难获得令人满意的效果。本文提出了一种用于原始医学图像器官分割的判别特征金字塔(DFPNet)网络,它由两个子网络组成:特征引导网络和边界网络。具体来说,特征引导网络采用自上而下的分步方式提取丰富的上下文信息,有利于抑制杂乱的背景和感知物体的尺度变化。边界网络采用自下而上的分步方式优化边界特征图,旨在区分外观相似但标签各异的相邻边缘特征。我们在三个公开的医学数据集(即 LUNA 16、RIM-ONE-R1 和 VNC 数据集)上进行了一系列实验,以评估所提出的 DFPNet 的有效性和通用性。实验结果表明,我们的网络在接收者操作特征曲线(ROC)、F-Score、Jaccard 指数和 Hausdorff 距离等方面都表现出色。代码见:https://github.com/Xie-Xiwang/DFPNet。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Discriminative features pyramid network for medical image segmentation

The diverse shapes and scales, complicated backgrounds, blurred boundaries, and similar appearances challenge the current organ segmentation methods in medical scene images. It is difficult to acquire satisfactory performance to directly extend the object segmentation methods in the natural scene images to the medical scene images. In this paper, we propose a discriminant feature pyramid (DFPNet) network for organ segmentation in the original medical images, which consists of two sub-networks: the feature steered network and the border network. To be specific, the feature steered network takes a top-down step-wise manner to extract abundant context information, which is conducive to suppressing the cluttered background and perceiving the scale variation of objects. The border network utilizes a bottom-up step-wise manner to optimize the boundary feature map, which aims at distinguishing adjacent edge features with similar appearances but diverse labels. A series of experiments were conducted on three publicly available medical datasets ( i.e., LUNA 16, RIM-ONE-R1, and VNC datasets) to evaluate the validity and generalization of the proposed DFPNet. Experimental results indicate that our network achieves superior performance in terms of the receiver operating characteristic (ROC) curve, F-Score, Jaccard index, and Hausdorff distance. The code will be available at: https://github.com/Xie-Xiwang/DFPNet.

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来源期刊
CiteScore
16.50
自引率
6.20%
发文量
77
审稿时长
38 days
期刊介绍: Biocybernetics and Biomedical Engineering is a quarterly journal, founded in 1981, devoted to publishing the results of original, innovative and creative research investigations in the field of Biocybernetics and biomedical engineering, which bridges mathematical, physical, chemical and engineering methods and technology to analyse physiological processes in living organisms as well as to develop methods, devices and systems used in biology and medicine, mainly in medical diagnosis, monitoring systems and therapy. The Journal''s mission is to advance scientific discovery into new or improved standards of care, and promotion a wide-ranging exchange between science and its application to humans.
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