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Purpose: We propose a general framework for quantifying predictive uncertainties of dose-related quantities and leveraging this information in a dose mimicking problem in the context of automated radiation therapy treatment planning.…

Medical Physics · Physics 2021-09-08 Tianfang Zhang , Rasmus Bokrantz , Jimmy Olsson

Compressed sensing (CS) is an efficient method to reconstruct MR image from small sampled data in $k$-space and accelerate the acquisition of MRI. In this work, we propose a novel deep geometric distillation network which combines the…

Image and Video Processing · Electrical Eng. & Systems 2021-08-30 Xiaohong Fan , Yin Yang , Jianping Zhang

Quantitative medical image computing (radiomics) has been widely applied to build prediction models from medical images. However, overfitting is a significant issue in conventional radiomics, where a large number of radiomic features are…

Image and Video Processing · Electrical Eng. & Systems 2020-01-07 Jianan Chen , Laurent Milot , Helen M. C. Cheung , Anne L. Martel

This paper addresses the problem of recovering tracer kinetic parameters from multi-region measurement data in quantitative PET imaging using the reversible two tissue compartment model. Its main result is an extension of our previous work…

Optimization and Control · Mathematics 2025-04-15 Martin Holler , Erion Morina , Georg Schramm

In post-operative radiotherapy for prostate cancer, the cancerous prostate gland has been surgically removed, so the clinical target volume (CTV) to be irradiated encompasses the microscopic spread of tumor cells, which cannot be visualized…

Existing manifold learning methods are not appropriate for image retrieval task, because most of them are unable to process query image and they have much additional computational cost especially for large scale database. Therefore, we…

Computer Vision and Pattern Recognition · Computer Science 2018-04-04 Jian Xu , Chunheng Wang , Chengzuo Qi , Cunzhao Shi , Baihua Xiao

To address the dual challenges of the curse of dimensionality and the difficulty in separating intra-cluster and inter-cluster structures in high-dimensional manifold embedding, we proposes an Adaptive Multi-Scale Manifold Embedding (AMSME)…

Machine Learning · Computer Science 2025-03-20 Tianhao Ni , Bingjie Li , Zhigang Yao

Utilizing task-invariant knowledge acquired from related tasks as prior information, meta-learning offers a principled approach to learning a new task with limited data records. Sample-efficient adaptation of this prior information is a…

Machine Learning · Computer Science 2025-09-03 Yilang Zhang , Bingcong Li , Georgios B. Giannakis

Clinical measurements collected over time are naturally represented as multivariate time series (MTS), which often contain missing data. An autoencoder can learn low dimensional vectorial representations of MTS that preserve important data…

Neural and Evolutionary Computing · Computer Science 2017-10-23 Filippo Maria Bianchi , Karl Øyvind Mikalsen , Robert Jenssen

Intrabody communication (IBC), is a promising technology that can be utilized for data transmission across the human body. In this study, a galvanic coupled (GC)-based IBC channel has been investigated for implantable configuration both…

Signal Processing · Electrical Eng. & Systems 2025-01-31 Kayhan Ate , Anna Marcucci , Pietro Savazzi , Şükrü Özen , Fabio Dell'Acqua , Anna Vizziello

We present a novel methodology to detect imperfect bilateral symmetry in CT of human anatomy. In this paper, the structurally symmetric nature of the pelvic bone is explored and is used to provide interventional image augmentation for…

Computer Vision and Pattern Recognition · Computer Science 2020-09-29 Javad Fotouhi , Giacomo Taylor , Mathias Unberath , Alex Johnson , Sing Chun Lee , Greg Osgood , Mehran Armand , Nassir Navab

Background and purpose: The delineation of the gross tumor volume (GTV) is a critical step for radiation therapy treatment planning. The delineation procedure is typically performed manually which exposes two major issues: cost and…

Medical image segmentation requires large annotated datasets, creating a significant bottleneck for clinical applications. While few-shot segmentation methods can learn from minimal examples, existing approaches demonstrate suboptimal…

Computer Vision and Pattern Recognition · Computer Science 2025-12-25 Ziyuan Gao

Tissue biopsy is the gold standard for diagnosing many diseases, involving the extraction of diseased tissue for histopathology analysis by expert pathologists. However, this procedure has two main limitations: 1) Manual sampling through…

Robotics · Computer Science 2025-09-03 Fanxin Wang , Yikun Cheng , Chuyuan Tao , Rohit Bhargava , Thenkurussi Kesavadas

Several machine learning techniques for accurate detection of skin cancer from medical images have been reported. Many of these techniques are based on pre-trained convolutional neural networks (CNNs), which enable training the models based…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Aqsa Saeed Qureshi , Teemu Roos

We introduce a learning-based algorithm to obtain a measurement matrix for compressive sensing related recovery problems. The focus lies on matrices with a constant modulus constraint which typically represent a network of analog phase…

Signal Processing · Electrical Eng. & Systems 2021-10-15 Michael Koller , Wolfgang Utschick

Early detection of malignant skin lesions is critical for improving patient outcomes in aggressive, metastatic skin cancers. This study evaluates a comprehensive system for preliminary skin lesion assessment that combines the clinically…

Image and Video Processing · Electrical Eng. & Systems 2026-01-23 Ali Khreis , Ro'Yah Radaideh , Quinn McGill

We present a system and a set of techniques for learning linear predictors with convex losses on terascale datasets, with trillions of features, {The number of features here refers to the number of non-zero entries in the data matrix.}…

Machine Learning · Computer Science 2013-07-15 Alekh Agarwal , Olivier Chapelle , Miroslav Dudik , John Langford

Longitudinal tracking of skin lesions - finding correspondence, changes in morphology, and texture - is beneficial to the early detection of melanoma. However, it has not been well investigated in the context of full-body imaging. We…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Wei-Lun Huang , Davood Tashayyod , Jun Kang , Amir Gandjbakhche , Michael Kazhdan , Mehran Armand

Magnetic resonance imaging (MRI) provides detailed soft-tissue characteristics that assist in disease diagnosis and screening. However, the accuracy of clinical practice is often hindered by missing or unusable slices due to various…

Image and Video Processing · Electrical Eng. & Systems 2025-08-12 Junkai Liu , Nay Aung , Theodoros N. Arvanitis , Stefan K. Piechnik , Joao A C Lima , Steffen E. Petersen , Le Zhang