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Density ratio estimation serves as an important technique in the unsupervised machine learning toolbox. However, such ratios are difficult to estimate for complex, high-dimensional data, particularly when the densities of interest are…

Machine Learning · Computer Science 2021-07-07 Kristy Choi , Madeline Liao , Stefano Ermon

We propose a framework for localization and classification of masses in breast ultrasound (BUS) images. We have experimentally found that training convolutional neural network based mass detectors with large, weakly annotated datasets…

Computer Vision and Pattern Recognition · Computer Science 2019-01-24 Seung Yeon Shin , Soochahn Lee , Il Dong Yun , Sun Mi Kim , Kyoung Mu Lee

Breast density, which is the ratio between fibroglandular tissue (FGT) and total breast volume, can be assessed qualitatively by radiologists and quantitatively by computer algorithms. These algorithms often rely on segmentation of breast…

Image and Video Processing · Electrical Eng. & Systems 2020-12-09 Bas H. M. van der Velden , Max A. A. Ragusi , Markus H. A. Janse , Claudette E. Loo , Kenneth G. A. Gilhuijs

Background and Objective: Accurate detection of breast masses in mammography images is critical to diagnose early breast cancer, which can greatly improve the patients survival rate. However, it is still a big challenge due to the…

Image and Video Processing · Electrical Eng. & Systems 2020-09-03 Haichao Cao

Breast cancer is in the most common malignant tumor in women. It accounted for 30% of new malignant tumor cases. Although the incidence of breast cancer remains high around the world, the mortality rate has been continuously reduced. This…

Image and Video Processing · Electrical Eng. & Systems 2022-02-01 Liuhua Zhang

Deep Convolutional Neural Networks have proven effective in solving the task of semantic segmentation. However, their efficiency heavily relies on the pixel-level annotations that are expensive to get and often require domain expertise,…

Computer Vision and Pattern Recognition · Computer Science 2020-07-03 Ostap Viniavskyi , Mariia Dobko , Oles Dobosevych

Digital Breast Tomosynthesis is an X-ray imaging technique that allows a volumetric reconstruction of the breast, from a small number of low-dose two-dimensional projections. Although it is already used in clinical setting, enhancing the…

Numerical Analysis · Mathematics 2020-07-21 Elena Morotti , Elena Loli Piccolomini

We propose a neural network component, the regional aggregation layer, that makes it possible to train a pixel-level density estimator using only coarse-grained density aggregates, which reflect the number of objects in an image region. Our…

Computer Vision and Pattern Recognition · Computer Science 2018-10-24 Nathan Jacobs , Adam Kraft , Muhammad Usman Rafique , Ranti Dev Sharma

Digital analysis of mammographic images is a complementary tool to clinical evaluation, commonly used to identify tumors and/or microcalcifications in mammograms. Recent mammographic equipment, can automatically classify them using this…

Applying deep learning methods to mammography assessment has remained a challenging topic. Dense noise with sparse expressions, mega-pixel raw data resolution, lack of diverse examples have all been factors affecting performance. The lack…

Computer Vision and Pattern Recognition · Computer Science 2018-07-10 Ulzee An , Khader Shameer , Lakshmi Subramanian

Mammography, the current standard for breast cancer screening, has reduced sensitivity in women with dense breast tissue, contributing to missed or delayed diagnoses. Thermalytix, an AI-based thermal imaging modality, captures functional…

Image and Video Processing · Electrical Eng. & Systems 2025-10-17 Siva Teja Kakileti , Bharath Govindaraju , Sudhakar Sampangi , Geetha Manjunath

We propose a method for effectively utilizing weakly annotated image data in an object detection tasks of breast ultrasound images. Given the problem setting where a small, strongly annotated dataset and a large, weakly annotated dataset…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 JooYeol Yun , JungWoo Oh , IlDong Yun

Mammography images are widely used to detect non-palpable breast lesions or nodules, preventing cancer and providing the opportunity to plan interventions when necessary. The identification of some structures of interest is essential to…

Image and Video Processing · Electrical Eng. & Systems 2023-07-21 Cesar A. Sierra-Franco , Jan Hurtado , Victor de A. Thomaz , Leonardo C. da Cruz , Santiago V. Silva , Alberto B. Raposo

Magnetic resonance imaging (MRI) is an effective imaging modality for identifying and localizing breast lesions in women. Accurate and precise lesion segmentation using a computer-aided-diagnosis (CAD) system, is a crucial step in…

Computer Vision and Pattern Recognition · Computer Science 2017-12-15 Sulaiman Vesal , Andres Diaz-Pinto , Nishant Ravikumar , Stephan Ellmann , Amirabbas Davari , Andreas Maier

Weak gravitational lensing allows one to reconstruct the spatial distribution of the projected mass density across the sky. These "mass maps" provide a powerful tool for studying cosmology as they probe both luminous and dark matter. In…

The generalization performance of deep learning models for medical image analysis often decreases on images collected with different devices for data acquisition, device settings, or patient population. A better understanding of the…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Aleksandar Vakanski , Min Xian

Breast cancer is the most common type of cancer among women worldwide. The standard histopathology of breast tissue, the primary means of disease diagnosis, involves manual microscopic examination of stained tissue by a pathologist. Because…

Quantitative Methods · Quantitative Biology 2017-11-07 Hassaan Majeed , Tan Huu Nguyen , Mikhail Eugene Kandel , Andre Kajdacsy-Balla , Gabriel Popescu

Multicellular systems play a key role in bioprocess and biomedical engineering. Cell ensembles encountered in these setups show phenotypic variability like size and biochemical composition. As this variability may result in undesired…

Systems and Control · Computer Science 2018-07-16 Armin Küper , Robert Dürr , Steffen Waldherr

Human body part segmentation refers to the task of predicting the semantic segmentation mask for each body part. Fully supervised body part segmentation methods achieve good performances but require an enormous amount of effort to annotate…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Zhengyuan Yang , Yuncheng Li , Linjie Yang , Ning Zhang , Jiebo Luo

Ultrasound imaging plays a critical role in the early detection of breast cancer. Accurate identification and segmentation of lesions are essential steps in clinical practice, requiring methods to assist physicians in lesion segmentation.…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Xin Yue , Xiaoling Liu , Qing Zhao , Jianqiang Li , Changwei Song , Suqin Liu , Zhikai Yang , Guanghui Fu