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Modeling and analysis of spectroscopy data is an active area of research with applications to chemistry and biology. This paper focuses on analyzing Raman spectra obtained from a bone fracture healing experiment, although the functional…

Applications · Statistics 2013-11-05 Arash A. Amini , Elizaveta Levina , Kerby A. Shedden

Ultrasound-based bone surface segmentation is crucial in computer-assisted orthopedic surgery. However, ultrasound images have limitations, including a low signal-to-noise ratio, and acoustic shadowing, which make interpretation difficult.…

Joint tissues consist of trabecular and cortical bone as well as calcified and hyaline cartilage, which presents a challenge for hard X-ray-based visualization on the sub-cellular level due to the wide range of local X-ray absorption…

High-gain resonant nonlinear Raman scattering on trapped cold atoms within a high-fineness ring optical cavity is simply explained under a nonlinear opto-mechanical mechanism, and a proposal using it to detect frequency of micro-trap on…

Atomic Physics · Physics 2014-03-24 Lin Zhang

The increased sensitivity of future radio telescopes will result in requirements for higher dynamic range within the image as well as better resolution and immunity to interference. In this paper we propose a new matrix formulation of the…

Astrophysics · Physics 2014-11-18 Chen Ben-David , Amir Leshem

Plain radiography is the most common modality to assess the stage of osteoarthritis. Our aims were to assess the relationship of radiography-based bone density and texture between radiographs with minimal and clinical post-processing, and…

Medical Physics · Physics 2019-02-07 Jukka Hirvasniemi , Jaakko Niinimäki , Jérôme Thevenot , Simo Saarakkala

Developing successful scaffolds requires clinicians to adopt a multidisciplinary approach in order to understand and stimulate the natural bone regeneration process. A variety of natural and synthetic biomaterials, including naturally…

Tissues and Organs · Quantitative Biology 2016-10-28 Elaine R. Durham , Giuseppe Tronci , Xuebin Yang , David J. Wood , Stephen J. Russell

Three-color coherent anti-Stokes Raman scattering represents non-degenerate four wave mixing process that includes both a non-resonant and resonant processes, the contributions of which depend on how the molecular vibrational modes are…

Optics · Physics 2020-10-14 Supriya Nagpal , Bryan Semon , Gombojav O. Ariunbold

The motion of chemical bonds within molecules can be observed in real time, in the form of vibrational wavepackets prepared and interrogated through ultrafast nonlinear spectroscopy. Such nonlinear optical measurements are commonly…

We present a new interferometric technique for measuring Coherent Anti-Stokes Raman Scattering (CARS) and Second Harmonic Generation (SHG) signals. Heterodyne detection is employed to increase the sensitivity in both CARS and SHG signal…

Optics · Physics 2009-11-10 C. Vinegoni , J. S. Bredfeldt , D. L. Marks , S. A. Boppart

Conventional radiography is the widely used imaging technology in diagnosing, monitoring, and prognosticating musculoskeletal (MSK) diseases because of its easy availability, versatility, and cost-effectiveness. In conventional radiographs,…

Image and Video Processing · Electrical Eng. & Systems 2024-12-30 Haolin Wang , Yafei Ou , Prasoon Ambalathankandy , Gen Ota , Pengyu Dai , Masayuki Ikebe , Kenji Suzuki , Tamotsu Kamishima

Medical imaging involves high-dimensional data, yet their acquisition is obtained for limited samples. Multivariate predictive models have become popular in the last decades to fit some external variables from imaging data, and standard…

Applications · Statistics 2018-06-18 Jérôme-Alexis Chevalier , Joseph Salmon , Bertrand Thirion

We introduce a new regression framework designed to deal with large-scale, complex data that lies around a low-dimensional manifold with noises. Our approach first constructs a graph representation, referred to as the skeleton, to capture…

Machine Learning · Computer Science 2026-03-17 Zeyu Wei , Yen-Chi Chen

Knee Osteoarthritis (KOA) is a highly prevalent chronic musculoskeletal condition with no currently available treatment. The manifestation of KOA is heterogeneous and prediction of its progression is challenging. Current literature suggests…

Image and Video Processing · Electrical Eng. & Systems 2023-07-04 Egor Panfilov , Simo Saarakkala , Miika T. Nieminen , Aleksei Tiulpin

Stroke is a major public health problem, affecting millions worldwide. Deep learning has recently demonstrated promise for enhancing the diagnosis and risk prediction of stroke. However, existing methods rely on costly medical imaging…

Image and Video Processing · Electrical Eng. & Systems 2025-12-17 Saeed Shurrab , Aadim Nepal , Terrence J. Lee-St. John , Nicola G. Ghazi , Bartlomiej Piechowski-Jozwiak , Farah E. Shamout

Simultaneous multislice (SMS) imaging is a one of the acceleration technique of magnetic resonance imaging. SMS requires accurate sensitivity distributions in the slice plane for each receiving coil. This requirement is difficult to satisfy…

Medical Physics · Physics 2024-03-04 Satoshi Ito , Yuki Sato , Naoya Endo , Shohei Ouchi

The use of multicomponent images has become widespread with the improvement of multisensor systems having increased spatial and spectral resolutions. However, the observed images are often corrupted by an additive Gaussian noise. In this…

Data Analysis, Statistics and Probability · Physics 2023-01-19 Caroline Chaux , Laurent Duval , Amel Benazza-Benyahia , Jean-Christophe Pesquet

Mechanical strain and stress play a major role in biological processes such as wound healing or morphogenesis. To assess this role quantitatively, fixed or live images of tissues are acquired at a cellular precision in large fields of…

Tissues and Organs · Quantitative Biology 2019-06-12 M. Durande , S. Tlili , T. Homan , B. Guirao , F. Graner , H. Delanoë-Ayari

Modern tissue engineering strategies combine living cells and scaffold materials to develop biological substitutes that can restore tissue functions. Both natural and synthetic materials have been fabricated for transplantation of stem…

The elasticity of soft tissues has been widely considered as a characteristic property to differentiate between healthy and vicious tissues and, therefore, motivated several elasticity imaging modalities, such as Ultrasound Elastography,…

Image and Video Processing · Electrical Eng. & Systems 2022-05-30 Weiguo Cao , Marc J. Pomeroy , Zhengrong Liang , Yongfeng Gao , Yongyi Shi , Jiaxing Tan , Fangfang Han , Jing Wang , Jianhua Ma , Hongbin Lu , Almas F. Abbasi , Perry J. Pickhardt