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We formalize the ``metric bundle'' viewpoint by defining, for any smooth $n$--manifold $M$, the open fiberwise cones $\mathcal{G}^{p,q}\subset S^2\Tstar M$ of nondegenerate symmetric bilinear forms with fixed signature $(p,q)$, and we…

Differential Geometry · Mathematics 2025-10-21 Shouvik Datta Choudhury

Morphological computing, the use of the physical design of a robot to ease the realization of a given task has been proven to be a relevant concept in the context of swarm robotics. Here we demonstrate both experimentally and numerically,…

Soft Condensed Matter · Physics 2026-01-13 Jeremy Fersula , Nicolas Bredeche , Olivier Dauchot

Corneal endothelial cell segmentation plays a vital role inquantifying clinical indicators such as cell density, coefficient of variation,and hexagonality. However, the corneal endothelium's uneven reflectionand the subject's tremor and…

Computer Vision and Pattern Recognition · Computer Science 2021-06-15 Yinglin Zhang , Risa Higashita , Huazhu Fu , Yanwu Xu , Yang Zhang , Haofeng Liu , Jian Zhang , Jiang Liu

Brownian motion and viscoelasticity of semiflexible polymers is a subject that has been studied for many years. Still, rigorous analysis has been hindered due to the difficulty in handling the constraint that polymer chains cannot be…

Soft Condensed Matter · Physics 2024-05-22 Zhongqiang Xiong , Ryohei Seto , Masao Doi

The shoulder joint is one of the functionally and anatomically most sophisticated articular systems in the human body. Both complex movement patterns and the stabilization of the highly mobile joint rely on intricate three-dimensional…

Computational Engineering, Finance, and Science · Computer Science 2024-11-06 Laura Engelhardt , Renate Sachse , Rainer Burgkart , Wolfgang A. Wall

Abdominal fat quantification is critical since multiple vital organs are located within this region. Although computed tomography (CT) is a highly sensitive modality to segment body fat, it involves ionizing radiations which makes magnetic…

Image and Video Processing · Electrical Eng. & Systems 2020-05-13 Samira Masoudi , Syed M. Anwar , Stephanie A. Harmon , Peter L. Choyke , Baris Turkbey , Ulas Bagci

An unsupervised data-driven nuclei segmentation method for histology images, called CBM, is proposed in this work. CBM consists of three modules applied in a block-wise manner: 1) data-driven color transform for energy compaction and…

Image and Video Processing · Electrical Eng. & Systems 2021-10-15 Vasileios Magoulianitis , Peida Han , Yijing Yang , C. -C. Jay Kuo

Multiple sclerosis (MS) is an inflammatory and neurodegenerative disease characterized by diffuse and focal areas of tissue loss. Conventional MRI techniques such as T1-weighted and T2-weighted scans are generally used in the diagnosis and…

We explicitly quantify the empirically observed phenomenon that estimation under a stochastic block model (SBM) is hard if the model contains classes that are similar. More precisely, we consider estimation of certain functionals of random…

Statistics Theory · Mathematics 2022-04-27 Ismaël Castillo , Peter Orbanz

Bundles of polymer filaments are responsible for the rich and unique mechanical behaviors of many biomaterials, including cells and extracellular matrices. In fibrin biopolymers, whose nonlinear elastic properties are crucial for normal…

Magnetic resonance spectroscopy (MRS) is an important technique in biomedical research and it has the unique capability to give a non-invasive access to the biochemical content (metabolites) of scanned organs. In the literature, the…

Computer Vision and Pattern Recognition · Computer Science 2018-06-20 Nima Hatami , Michaël Sdika , Hélène Ratiney

Strong disorder in interacting quantum systems can give rise to the phenomenon of Many-Body Localization (MBL), which defies thermalization due to the formation of an extensive number of quasi local integrals of motion. The one particle…

Disordered Systems and Neural Networks · Physics 2018-03-14 Benjamin Villalonga , Xiongjie Yu , David J. Luitz , Bryan K. Clark

Segmentation of thigh tissues (muscle, fat, inter-muscular adipose tissue (IMAT), bone, and bone marrow) from magnetic resonance imaging (MRI) scans is useful for clinical and research investigations in various conditions such as aging,…

Image and Video Processing · Electrical Eng. & Systems 2020-11-30 Syed Muhammad Anwar , Ismail Irmakci , Drew A. Torigian , Sachin Jambawalikar , Georgios Z. Papadakis , Can Akgun , Mehmet Akcakaya , Ulas Bagci

Anatomical shape analysis plays a pivotal role in clinical research and hypothesis testing, where the relationship between form and function is paramount. Correspondence-based statistical shape modeling (SSM) facilitates population-level…

Computer Vision and Pattern Recognition · Computer Science 2024-05-17 Jadie Adams , Krithika Iyer , Shireen Elhabian

Orbital angular momentum (OAM) recognition of vortex beams is critical for applications ranging from optical communications to quantum technologies. However, conventional approaches designed for free-space propagation struggle when light…

Microtubules are inherently dynamic sub-cellular filamentuous polymers that are spatially organized within the cell by motor proteins which cross-link and move microtubules. In-vitro microtubule motility assays, in which motors attached to…

Quantitative Methods · Quantitative Biology 2020-01-22 Samira Masoudi , Cameron H. G. Wright , Nazanin Rahnavard , Jay C. Gatlin , John S. Oakey

The investigation of spatio-temporal dynamics of bacterial cells and their molecular components requires automated image analysis tools to track cell shape properties and molecular component locations inside the cells. In the study of…

Computer Vision and Pattern Recognition · Computer Science 2016-12-23 Jean-Pascal Jacob , Mariella Dimiccoli , Lionel Moisan

Due to the permanent harm to human health and ecosystem balance, antibiotic pollution in water has become an important direction of current environmental governance. Spherical metal oxides (SMOs) have been frequently utilized as effective…

Biological Physics · Physics 2024-03-27 Ke Zhu , Xin Li , Yuwen Chen , Yizhe Huang , Zhiyu Yang , Guoqing Guan , Kai Yan

Functionalized nanoparticles (NPs) are complex objects present in a variety of systems ranging from synthetic grafted nanoparticles to viruses. The morphology and number of the decorating groups can vary widely between systems. Thus, the…

Mesoscale and Nanoscale Physics · Physics 2023-03-22 Daniela Moreno-Chaparro , Nicolas Moreno , Florencio Balboa-Usabiaga , Marco Ellero

Morphological methods play a crucial role in remote sensing image processing, due to their ability to capture and preserve small structural details. However, most of the existing deep learning models for semantic segmentation are based on…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Jun Xie , Wenxiao Li , Faqiang Wang , Liqiang Zhang , Zhengyang Hou , Jun Liu
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