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An Automatic Localization Algorithm for Ultrasound Breast Tumors Based on Human Visual Mechanism
Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, Faculty of Science & Engineering. Sichuan University. (Scientific Visualization)ORCID iD: 10.3390/s17051101
2017 (English)In: Sensor of Journals, ISSN 1424-8220, Vol. 17, no 5Article in journal (Refereed) Published
Abstract [en]

Human visual mechanisms (HVMs) can quickly localize the most salient object in natural images, but it is ineffective at localizing tumors in ultrasound breast images. In this paper, we research the characteristics of tumors, develop a classic HVM and propose a novel auto-localization method. Comparing to surrounding areas, tumors have higher global and local contrast. In this method, intensity, blackness ratio and superpixel contrast features are combined to compute a saliency map, in which a Winner Take All algorithm is used to localize the most salient region, which is represented by a circle. The results show that the proposed method can successfully avoid the interference caused by background areas of low echo and high intensity. The method has been tested on 400 ultrasound breast images, among which 376 images succeed in localization. This means this method has a high accuracy of 94.00%, indicating its good performance in real-life applications. 

Place, publisher, year, edition, pages
2017. Vol. 17, no 5
Keywords [en]
Automatic localization Human visual mechanisms Superpixel contrast feature Ultrasound breast tumor
National Category
Medical Engineering
Identifiers
URN: urn:nbn:se:liu:diva-143696DOI: 10.3390/s17051101OAI: oai:DiVA.org:liu-143696DiVA, id: diva2:1166247
Available from: 2017-12-14 Created: 2017-12-14 Last updated: 2017-12-20

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Xie, Yuting
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CiteExportLink to record
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