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Computed tomography (CT) is an important imaging technique used in medical analysis of the internal structure of the human body. Previously, image segmentation methods were required after acquiring reconstructed CT images to obtain…

Quantum Physics · Physics 2024-09-17 Kyungtaek Jun

The major advantage of proton therapy over conventional radiotherapy is the dose deposition pattern, enabling precise coverage of the tumour volume while sparing nearby healthy tissues. However, accurate control of the proton beam range…

Medical Physics · Physics 2025-04-01 Magdalena Kołodziej

Glioblastoma (GBM) is one of the most aggressive and lethal human cancers. Intra-tumoral genetic heterogeneity poses a significant challenge for treatment. Biopsy is invasive, which motivates the development of non-invasive, MRI-based…

Purpose: There is increasing interest in computed tomography (CT) image estimations from magnetic resonance (MR) images. The estimated CT images can be utilised for attenuation correction, patient positioning, and dose planning in…

Methodology · Statistics 2019-04-02 Fekadu L. Bayisa , Xijia Liu , Anders Garpebring , Jun Yu

Recently, deep learning based facial landmark detection (FLD) methods have achieved considerable success. However, in challenging scenarios such as large pose variations, illumination changes, and facial expression variations, they still…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Jun Wan , Xinyu Xiong , Ning Chen , Zhihui Lai , Jie Zhou , Wenwen Min

Radiotherapy (RT) is a key component in the treatment of various cancers, including Acute Lymphocytic Leukemia (ALL) and Acute Myelogenous Leukemia (AML). Precise delineation of organs at risk (OARs) and target areas is essential for…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Ricardo Coimbra Brioso , Damiano Dei , Ciro Franzese , Nicola Lambri , Daniele Loiacono , Pietro Mancosu , Marta Scorsetti

Benchmarking and characterising quantum states and logic gates is essential in the development of devices for quantum computing. We introduce a Bayesian approach to self-consistent process tomography, called fast Bayesian tomography (FBT),…

Cosmic Microwave Background (CMB) lensing is a powerful probe of the matter distribution in the Universe. The standard quadratic estimator, which is typically used to measure the lensing signal, is known to be suboptimal for low-noise…

Cosmology and Nongalactic Astrophysics · Physics 2019-04-26 Benjamin Horowitz , Simone Ferraro , Blake D. Sherwin

Accurate detection and segmentation of brain tumors from magnetic resonance imaging (MRI) are essential for diagnosis, treatment planning, and clinical monitoring. While convolutional architectures such as U-Net have long been the backbone…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Arman Behnam

The detection of objects in the presence of significant background noise is a problem of fundamental interest in sensing. In this work, we theoretically analyze a prototype target detection protocol, the quantum temporal correlation (QTC)…

Optics · Physics 2020-04-16 Han Liu , Bhashyam Balaji , Amr S. Helmy

Swift/UVOT has the capability to provide critical insight into the physics of the early afterglows of gamma-ray bursts (GRBs). But without precise calibration of the UVOT to standard photometric systems, it is impossible to leverage late-…

Quantitative susceptibility mapping (QSM) has demonstrated great potential in quantifying tissue susceptibility in various brain diseases. However, the intrinsic ill-posed inverse problem relating the tissue phase to the underlying…

Computer Vision and Pattern Recognition · Computer Science 2021-05-21 Ruimin Feng , Jiayi Zhao , He Wang , Baofeng Yang , Jie Feng , Yuting Shi , Ming Zhang , Chunlei Liu , Yuyao Zhang , Jie Zhuang , Hongjiang Wei

Digital breast tomosynthesis (DBT) exams should utilize the lowest possible radiation dose while maintaining sufficiently good image quality for accurate medical diagnosis. In this work, we propose a convolution neural network (CNN) to…

Image and Video Processing · Electrical Eng. & Systems 2022-03-23 Rodrigo de Barros Vimieiro , Chuang Niu , Hongming Shan , Lucas Rodrigues Borges , Ge Wang , Marcelo Andrade da Costa Vieira

Modern mobile communication receivers are often implemented with a direct-conversion architecture, which features a number of advantages over competing designs. A notable limitation of direct-conversion architectures, however, is their…

Signal Processing · Electrical Eng. & Systems 2026-03-17 Moritz Tockner , Oliver Lang , Andreas Meingassner-Lang , Mario Huemer

High-dimensional time-frequency encodings have the potential to significantly advance quantum information science; however, practical applications require precise knowledge of the encoded quantum states, which becomes increasingly…

Quantum Physics · Physics 2025-02-06 Laura Serino , Markus Rambach , Benjamin Brecht , Jacquiline Romero , Christine Silberhorn

Purpose: Accurate segmentation of clinical target volumes (CTV) and organs-at-risk is crucial for optimizing gynecologic brachytherapy (GYN-BT) treatment planning. However, anatomical variability, low soft-tissue contrast in CT imaging, and…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Mingzhe Hu , Yuan Gao , Yuheng Li , Ricahrd LJ Qiu , Chih-Wei Chang , Keyur D. Shah , Priyanka Kapoor , Beth Bradshaw , Yuan Shao , Justin Roper , Jill Remick , Zhen Tian , Xiaofeng Yang

We propose an imaging system and methodology for mapping soft-tissue samples in three dimensions, with micron-scale and isotropic spatial resolution, with low-concentrations as well as in the absence of heavy metal staining. We used hard…

Instrumentation and Detectors · Physics 2023-12-21 Michela Esposito , Nicole Schieber , Alessandro Olivo , Yannick Schwab , Marco Endrizzi

Soft robotic instruments could navigate delicate, tortuous anatomy more safely than rigid tools, but clinical adoption is limited by insufficient tip functionalization and real-time feedback at the tissue interface. Few sensing and…

In a quantum illumination (QI) protocol, the task is to detect the presence of the target which is typically modelled by a partially reflecting beam splitter. We analyze the performance of QI when the target absorbs part of the light that…

Quantum Physics · Physics 2021-11-02 Rivu Gupta , Saptarshi Roy , Tamoghna Das , Aditi Sen De

In this article, we introduce the notion of Quaternion Boostlet Transform (QBT), a hypercomplex framework designed to unify the analysis of multi-component wavefields by merging the algebraic richness of quaternions with the relativistic,…

Functional Analysis · Mathematics 2026-05-01 Owais Ahmad , Jasifa Fayaz
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