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This study presents an unsupervised domain adaptation method aimed at autonomously generating image masks outlining regions of interest (ROIs) for differentiating breast lesions in breast ultrasound (US) imaging. Our semi-supervised…

Computer Vision and Pattern Recognition · Computer Science 2024-04-22 Ting-Ruen Wei , Michele Hell , Dang Bich Thuy Le , Aren Vierra , Ran Pang , Mahesh Patel , Young Kang , Yuling Yan

Mammography is the most widely used method to screen breast cancer. Because of its mostly manual nature, variability in mass appearance, and low signal-to-noise ratio, a significant number of breast masses are missed or misdiagnosed. In…

Computer Vision and Pattern Recognition · Computer Science 2016-12-05 Daniel Lévy , Arzav Jain

Annotating medical images demands significant time and expertise, often requiring pathologists to invest hundreds of hours in labeling mammary epithelial nuclei datasets. We address this critical challenge by achieving 95.5% Dice score…

Artificial Intelligence · Computer Science 2025-12-03 Varun Kumar Dasoju , Qingsu Cheng , Zeyun Yu

Learning-based lossless image compression employs pixel-based or subimage-based auto-regression for probability estimation, which achieves desirable performances. However, the existing works only consider context dependencies in one…

Image and Video Processing · Electrical Eng. & Systems 2025-03-17 Tiantian Li , Qunbing Xia , Yue Li , Ruixiao Guo , Gaobo Yang

Morphological features play an important role in breast mass classification in sonography. While benign breast masses tend to have a well-defined ellipsoidal contour, shape of malignant breast masses is commonly ill-defined and highly…

Computer Vision and Pattern Recognition · Computer Science 2019-05-28 Michal Byra , Michael Andre

A density matrix describes the statistical state of a quantum system. It is a powerful formalism to represent both the quantum and classical uncertainty of quantum systems and to express different statistical operations such as measurement,…

Machine Learning · Computer Science 2024-05-01 Fabio A. González , Alejandro Gallego , Santiago Toledo-Cortés , Vladimir Vargas-Calderón

This paper focuses on semi-supervised crowd counting, where only a small portion of the training data are labeled. We formulate the pixel-wise density value to regress as a probability distribution, instead of a single deterministic value.…

Computer Vision and Pattern Recognition · Computer Science 2024-02-26 Hui Lin , Zhiheng Ma , Rongrong Ji , Yaowei Wang , Zhou Su , Xiaopeng Hong , Deyu Meng

Learning-based lossy image compression usually involves the joint optimization of rate-distortion performance. Most existing methods adopt spatially invariant bit length allocation and incorporate discrete entropy approximation to constrain…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Mu Li , Wangmeng Zuo , Shuhang Gu , Jane You , David Zhang

We present a weakly supervised deep learning method to perform instance segmentation of cells present in microscopy images. Annotation of biomedical images in the lab can be scarce, incomplete, and inaccurate. This is of concern when…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Fidel A. Guerrero-Peña , Pedro D. Marrero Fernandez , Tsang Ing Ren , Alexandre Cunha

Mitosis count is an important biomarker for prognosis of various cancers. At present, pathologists typically perform manual counting on a few selected regions of interest in breast whole-slide-images (WSIs) of patient biopsies. This task is…

Computer Vision and Pattern Recognition · Computer Science 2018-08-01 Saad Ullah Akram , Talha Qaiser , Simon Graham , Juho Kannala , Janne Heikkilä , Nasir Rajpoot

To enable a deep learning-based system to be used in the medical domain as a computer-aided diagnosis system, it is essential to not only classify diseases but also present the locations of the diseases. However, collecting instance-level…

Computer Vision and Pattern Recognition · Computer Science 2021-01-26 Hyun-Woo Kim , Hong-Gyu Jung , Seong-Whan Lee

Weak gravitational lensing surveys are rapidly becoming important tools to probe directly the mass density fluctuations in the universe and its background dynamics. Earlier studies have shown that it is possible to model the statistics of…

Astrophysics · Physics 2009-11-07 Patrick Valageas , Andrew J. Barber , Dipak Munshi

Weak gravitational lensing has been used extensively in the past decade to constrain the masses of galaxy clusters, and is the most promising observational technique for providing the mass calibration necessary for precision cosmology with…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Rachel Mandelbaum , Uros Seljak , Tobias Baldauf , Robert E. Smith

The distortion of the images of faint high-redshift galaxies can be used to probe the intervening mass distribution. This weak gravitational lensing effect has been used recently to study the (projected) mass distribution of several…

Astrophysics · Physics 2009-10-30 Guido Kruse , Peter Schneider

We propose a novel deep learning based approach to breast mass segmentation in ultrasound (US) imaging. In comparison to commonly applied segmentation methods, which use US images, our approach is based on quantitative entropy parametric…

Image and Video Processing · Electrical Eng. & Systems 2020-01-29 Michal Byra , Piotr Jarosik , Katarzyna Dobruch-Sobczak , Ziemowit Klimonda , Hanna Piotrzkowska-Wroblewska , Jerzy Litniewski , Andrzej Nowicki

To generate evidence regarding the safety and efficacy of artificial intelligence (AI) enabled medical devices, AI models need to be evaluated on a diverse population of patient cases, some of which may not be readily available. We propose…

Image and Video Processing · Electrical Eng. & Systems 2023-10-31 Elena Sizikova , Niloufar Saharkhiz , Diksha Sharma , Miguel Lago , Berkman Sahiner , Jana G. Delfino , Aldo Badano

Lesion segmentation in medical imaging serves as an effective tool for assessing tumor sizes and monitoring changes in growth. However, not only is manual lesion segmentation time-consuming, but it is also expensive and requires expert…

Computer Vision and Pattern Recognition · Computer Science 2020-01-28 Vatsal Agarwal , Youbao Tang , Jing Xiao , Ronald M. Summers

To alleviate the burden of gathering detailed expert annotations when training deep neural networks, we propose a weakly supervised learning approach to recognize metastases in microscopic images of breast lymph nodes. We describe an…

Computer Vision and Pattern Recognition · Computer Science 2018-12-04 Shazia Akbar , Anne L. Martel

Background: Breast density, as derived from mammographic images and defined by the American College of Radiology's Breast Imaging Reporting and Data System (BI-RADS), is one of the strongest risk factors for breast cancer. Breast ultrasound…

Mammography is the primary imaging modality used for early detection and diagnosis of breast cancer. X-ray mammogram analysis mainly refers to the localization of suspicious regions of interest followed by segmentation, towards further…

Image and Video Processing · Electrical Eng. & Systems 2020-12-09 Yutong Yan , Pierre-Henri Conze , Gwenolé Quellec , Mathieu Lamard , Béatrice Cochener , Gouenou Coatrieux