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The Compton camera is a gamma-ray imaging device developed in the 1970s. In the 1990s, the COMPTEL detector onboard the CGRO was the first to utilize a Compton camera for MeV all-sky survey observations. Recently, various Compton cameras…

Wireless localization of permanent magnets enables occlusion-free guidance for medical interventions, yet its practical accuracy is fundamentally limited by two coupled challenges: the poor observability of conventional planar sensor arrays…

Robotics · Computer Science 2026-04-27 Wenxuan Xie , Yuelin Zhang , Qingpeng Ding , Jianghua Chen , Jiewen Tan , Jiwei Shan , Shing Shin Cheng

Purpose: To develop a machine learning-based, 3D dose prediction methodology for Gamma Knife (GK) radiosurgery. The methodology accounts for cases involving targets of any number, size, and shape. Methods: Data from 322 GK treatment plans…

Medical Physics · Physics 2023-01-09 Binghao Zhang , Aaron Babier , Timothy C. Y. Chan , Mark Ruschin

Automatic detection of cancer metastasis from whole slide images (WSIs) is a crucial step for following patient staging and prognosis. Recent convolutional neural network based approaches are struggling with the trade-off between accuracy…

Computer Vision and Pattern Recognition · Computer Science 2019-07-16 Zixu Zhao , Huangjing Lin , Hao Chen , Pheng-Ann Heng

Foundation models have significantly advanced medical image analysis through the pre-train fine-tune paradigm. Among various fine-tuning algorithms, Parameter-Efficient Fine-Tuning (PEFT) is increasingly utilized for knowledge transfer…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Raman Dutt , Linus Ericsson , Pedro Sanchez , Sotirios A. Tsaftaris , Timothy Hospedales

Purpose: To improve target coverage and reduce the dose in the surrounding organs-at-risks (OARs), we developed an image-guided treatment method based on a precomputed library of treatment plans controlled and delivered in real-time.…

Medical Physics · Physics 2022-11-02 Valentin Hamaide , Kevin Souris , Damien Dasnoy , Francois Glineur , Benoit Macq

Accurate dose calculation on cone beam computed tomography (CBCT) images is essential for modern proton treatment planning workflows, particularly when accounting for inter-fractional anatomical changes in adaptive treatment scenarios.…

We propose a dim and small target detection algorithm for drone broadcast frames based on the time-frequency analysis of communication protocol. Specifically, by analyzing modulation parameters and frame structures, the prior knowledge of…

Signal Processing · Electrical Eng. & Systems 2025-06-24 Jie Li , Jing Li , Zhanyu Ju , Fengkui Gong , Lu Lv

Next generation online and real-time adaptive radiotherapy workflows require precise particle transport simulations in sub-second times, which is unfeasible with current analytical pencil beam algorithms (PBA) or stochastic Monte Carlo (MC)…

Medical Physics · Physics 2022-02-08 Oscar Pastor-Serrano , Zoltán Perkó

Cancer is a complex genetic disease involving uncontrolled cell growth and proliferation, and necessitates effective targeting of dysregulated cellular pathways underlying cancer progression. Multiple genetic and epigenetic alterations…

Other Quantitative Biology · Quantitative Biology 2026-01-28 Manish Kumar

Fourier ptychography (FP), as a computational imaging method, is a powerful tool to improve imaging resolution. Camera-scanning Fourier ptychography extends the application of FP from micro to macro creatively. Due to the non-ideal scanning…

Image and Video Processing · Electrical Eng. & Systems 2022-06-08 Baiqi Cui , Shaohui Zhang , Yechao Wang , Yao Hu , Qun Hao

Multi-omic datasets offer opportunities for improved biomarker discovery in cancer research, but their high dimensionality and limited sample sizes make identifying compact and effective biomarker panels challenging. Feature selection in…

Genomics · Quantitative Biology 2026-04-02 Luca Cattelani , Vittorio Fortino

Convolutional Neural Networks (CNN) have gained great success in many artificial intelligence tasks. However, finding a good set of hyperparameters for a CNN remains a challenging task. It usually takes an expert with deep knowledge, and…

Neural and Evolutionary Computing · Computer Science 2020-06-25 Xueli Xiao , Ming Yan , Sunitha Basodi , Chunyan Ji , Yi Pan

We investigate the use of a Genetic Algorithm (GA) to design a set of photonic crystals (PCs) in one and two dimensions. Our flexible design methodology allows us to optimize PC structures which are optimized for specific objectives. In…

Optics · Physics 2009-11-13 Joel Goh , Ilya Fushman , Dirk Englund , Jelena Vuckovic

This paper proposes a joint multi-objective optimization framework for strategic sensor placement in power systems to enhance attack detection. A novel physics-informed graph transformer network (PIGTN)-based detection model is proposed.…

Neural and Evolutionary Computing · Computer Science 2026-03-03 Mariam Elnour , Mohammad AlShaikh Saleh , Rachad Atat , Xiang Huo , Abdulrahman Takiddin , Muhammad Ismail , Hasan Kurban , Katherine R. Davis , Erchin Serpedin

Approaches for improving generative adversarial networks (GANs) training under a few samples have been explored for natural images. However, these methods have limited effectiveness for synthetic aperture radar (SAR) images, as they do not…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Xidan Zhang , Yihan Zhuang , Qian Guo , Haodong Yang , Xuelin Qian , Gong Cheng , Junwei Han , Zhongling Huang

With the rise of large radio interferometric telescopes, particularly the SKA, there is a growing demand for computationally efficient image reconstruction techniques. Existing reconstruction methods, such as the CLEAN algorithm or proximal…

Instrumentation and Methods for Astrophysics · Physics 2025-07-30 Matthijs Mars , Tobías I. Liaudat , Jessica J. Whitney , Marta M. Betcke , Jason D. McEwen

Objective: To propose a CBCT dose optimization method using readily available measurement equipment in radiation oncology departments. Approach: A 0.6cc air kerma (Kair) calibrated Farmer chamber measured Kair at isocenter for five default…

Medical Physics · Physics 2025-02-04 S. Gros , J. Bian , J. Jackson , M. Delafuente , H. Kang , W. Small , M. Mahesh

We present a machine learning method capable of accurately detecting chromosome abnormalities that cause blood cancers directly from microscope images of the metaphase stage of cell division. The pipeline is built on a series of fine-tuned…

Flexible characterization techniques that identify and quantify experimental imperfections under realistic assumptions are crucial for the development of quantum computers. Gate set tomography is a characterization approach that…

Quantum Physics · Physics 2023-03-31 Raphael Brieger , Ingo Roth , Martin Kliesch