arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1607.07604cs.CV
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无线胶囊内窥镜分析中的通用特征学习

Generic Feature Learning for Wireless Capsule Endoscopy Analysis

Universitat de Barcelona(巴塞罗那大学);Computer Vision Center (CVC)(计算机视觉中心);Medtronic GI(美敦力胃肠部门);Hospital Vall d’Hebron(巴尔德希伯伦医院)

Santi Seguí, Michal Drozdzal, Guillem Pascual, Petia Radeva, Carolina Malagelada, Fernando Azpiroz, Jordi Vitrià

摘要:

无线胶囊式内窥镜记录的解释和分析是一项复杂的任务,需要复杂的计算机辅助决策(CAD)系统,以帮助医生进行视频筛查,并最终进行诊断。胶囊式内窥镜中的大多数CAD系统共享共同的系统设计,但使用非常不同的图像和视频表示。因此,每当WCE出现新的临床应用时,必须从头开始设计新的CAD系统。这一特点使得新的CAD系统的设计非常耗时。因此,在本文中,我们介绍了一个系统的小肠运动特性,基于深度卷积神经网络,它避免了为个别运动事件设计特定功能的费力步骤。实验结果表明,学习功能的优越性,通过使用国家的最先进的手工制作的功能构建的替代分类。特别是,它达到了96%的平均分类精度为6个肠动力事件,优于其他分类器的大幅度(14%的相对性能提高)。

英文摘要:

The interpretation and analysis of the wireless capsule endoscopy recording is a complex task which requires sophisticated computer aided decision (CAD) systems in order to help physicians with the video screening and, finally, with the diagnosis. Most of the CAD systems in the capsule endoscopy share a common system design, but use very different image and video representations. As a result, each time a new clinical application of WCE appears, new CAD system has to be designed from scratch. This characteristic makes the design of new CAD systems a very time consuming. Therefore, in this paper we introduce a system for small intestine motility characterization, based on Deep Convolutional Neural Networks, which avoids the laborious step of designing specific features for individual motility events. Experimental results show the superiority of the learned features over alternative classifiers constructed by using state of the art hand-crafted features. In particular, it reaches a mean classification accuracy of 96% for six intestinal motility events, outperforming the other classifiers by a large margin (a 14% relative performance increase).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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