Segmentation of breast ultrasound images based on active contours using neutrosophic theory - PubMed (original) (raw)
. 2018 Apr;45(2):205-212.
doi: 10.1007/s10396-017-0811-8. Epub 2017 Aug 18.
Affiliations
- PMID: 28821993
- DOI: 10.1007/s10396-017-0811-8
Segmentation of breast ultrasound images based on active contours using neutrosophic theory
Mahsa Lotfollahi et al. J Med Ultrason (2001). 2018 Apr.
Abstract
Purpose: Ultrasound imaging is an effective approach for diagnosing breast cancer, but it is highly operator-dependent. Recent advances in computer-aided diagnosis have suggested that it can assist physicians in diagnosis. Definition of the region of interest before computer analysis is still needed. Since manual outlining of the tumor contour is tedious and time-consuming for a physician, developing an automatic segmentation method is important for clinical application.
Methods: The present paper represents a novel method to segment breast ultrasound images. It utilizes a combination of region-based active contour and neutrosophic theory to overcome the natural properties of ultrasound images including speckle noise and tissue-related textures. First, due to inherent speckle noise and low contrast of these images, we have utilized a non-local means filter and fuzzy logic method for denoising and image enhancement, respectively. This paper presents an improved weighted region-scalable active contour to segment breast ultrasound images using a new feature derived from neutrosophic theory.
Results: This method has been applied to 36 breast ultrasound images. It generates true-positive and false-positive results, and similarity of 95%, 6%, and 90%, respectively.
Conclusion: The purposed method indicates clear advantages over other conventional methods of active contour segmentation, i.e., region-scalable fitting energy and weighted region-scalable fitting energy.
Keywords: Active contour; Breast ultrasound image; Neutrosophic theory; Segmentation.
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