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Proceedings ArticleDOI

Object Boundary Detection in Ultrasound Images

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TLDR
This paper presents a novel approach to boundary detection of regions-of-interest (ROI) in ultrasound images, more specifically applied to ultrasound breast images, and compares the performance of the algorithm with two well known methods.
Abstract
This paper presents a novel approach to boundary detection of regions-of-interest (ROI) in ultrasound images, more specifically applied to ultrasound breast images. In the proposed method, histogram equalization is used to preprocess the ultrasound images followed by a hybrid filtering stage that consists of a combination of a nonlinear diffusion filter and a linear filter. Subsequently the multifractal dimension is used to analyse the visually distinct areas of the ultrasound image. Finally, using different threshold values, region growing segmentation is used to the partition the image. The partition with the highest Radial Gradient Index (RGI) is selected as the lesion. A total of 200 images have been used in the analysis of the presented results. We compare the performance of our algorithm with two well known methods proposed by Kupinski et al. and Joo et al. We show that the proposed method performs better in solving the boundary detection problem in ultrasound images.

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Citations
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Journal ArticleDOI

Automated Breast Ultrasound Lesions Detection Using Convolutional Neural Networks

TL;DR: This paper proposes the use of deep learning approaches for breast ultrasound lesion detection and investigates three different methods: a Patch-based LeNet, a U-Net, and a transfer learning approach with a pretrained FCN-AlexNet.
Journal ArticleDOI

A novel algorithm for initial lesion detection in ultrasound breast images.

TL;DR: The proposed method is more accurate and performs more effectively than do the benchmark algorithms considered and compared that of three state‐of‐the‐art methods, namely, the radial gradient index filtering technique, the local mean technique, and the fractal dimension technique.
Journal ArticleDOI

Breast ultrasound lesions recognition:: end-to-end deep learning approaches

TL;DR: This work proposes the use of end-to-end deep learning approaches using fully convolutional networks (FCNs), namely FCN-AlexNet,FCN-32s, FCn-16s, and FCN -8s for semantic segmentation of breast lesions and shows that the proposed method performed better on benign lesions.
Journal ArticleDOI

Breast ultrasound region of interest detection and lesion localisation.

TL;DR: This work proposes the use of a deep learning method for breast ultrasound ROI detection and lesion localisation and uses the most accurate object detection deep learning framework - Faster-RCNN with Inception-ResNet-v2 - as the deep learning network.
Journal ArticleDOI

Despeckling of ultrasound images of bone fracture using multiple filtering algorithms

TL;DR: The results of the study carried out to reduce speckle using filtering algorithms such as Wiener, Average, Median, Anisotropic Diffusion and Wavelets suggest that the combination of Daubechies–Wiener, which is a hybrid technique with Anisotrop Diffusion, gave the best performance.
References
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Journal ArticleDOI

Scale-space and edge detection using anisotropic diffusion

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Speckle reducing anisotropic diffusion

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Solid breast nodules: use of sonography to distinguish between benign and malignant lesions.

TL;DR: Sonography can be used to accurately classify some solid lesions as benign, allowing imaging follow-up rather than biopsy, and this distinction could be definite enough to obviate biopsy.
Journal ArticleDOI

Texture segmentation using fractal dimension

TL;DR: A modified box-counting approach is proposed to estimate the FD, in combination with feature smoothing in order to reduce spurious regions and to segment a scene into the desired number of classes, an unsupervised K-means like clustering approach is used.
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