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相关论文: Continuous wave multi-pass imaging flow cytometry

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Recently, deep learning-based methods achieved promising performance in nuclei detection and classification applications. However, training deep learning-based methods requires a large amount of pixel-wise annotated data, which is…

图像与视频处理 · 电气工程与系统科学 2024-01-17 Nazanin Moradinasab , Rebecca A. Deaton , Laura S. Shankman , Gary K. Owens , Donald E. Brown

We suggest a new multimodal imaging technique for quantitatively measuring the integral (thickness-average) refractive index of the nuclei of live biological cells in suspension. For this aim, we combined quantitative phase microscopy with…

General-purpose Large Vision-Language Models (LVLMs), despite their massive scale, often falter in dermatology due to "diffuse attention" - the inability to disentangle subtle pathological lesions from background noise. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2026-01-15 Lijun Liu , Linwei Chen , Zhishou Zhang , Meng Tian , Hengfu Cui , Ruiyang Li , Zhaocheng Liu , Qiang Ju , Qianxi Li , Hong-Yu Zhou

The interaction-free measurement is a fundamental quantum effect whereby the presence of a photosensitive object is determined without irreversible photon absorption. Here we propose the concept of coherent interaction-free detection and…

量子物理 · 物理学 2023-07-10 Shruti Dogra , John J. McCord , Gheorghe Sorin Paraoanu

Label-free imaging of rapidly moving, sub-diffraction sized structures has important applications in both biology and material science, as it removes the limitations associated with fluorescence tagging. However, unlabeled nanoscale…

Background and Objective: Hemodynamic analysis of blood flow through arteries and veins is critical for diagnosing cardiovascular diseases, such as aneurysms and stenoses, and for investigating cardiovascular parameters, such as turbulence…

Significance: Measuring cerebral blood flow (CBF) is crucial for diagnosing various cerebral diseases. An affordable, wearable, and fiber-free continuous-wave speckle contrast flowmetry (CW-DSCF) technique has been developed for continuous…

定量方法 · 定量生物学 2025-02-13 Chaebeom Yeo , Xuhui Liu , Mehrana Mohtasebi , Faezeh Akbari , Faraneh Fathi , Guoqiang Yu

Segmentation and measurement of cardiac chambers is critical in cardiac ultrasound but is laborious and poorly reproducible. Neural networks can assist, but supervised approaches require the same laborious manual annotations. We built a…

图像与视频处理 · 电气工程与系统科学 2026-02-24 Danielle L. Ferreira , Connor Lau , Zaynaf Salaymang , Rima Arnaout

Despite the remarkable success on medical image analysis with deep learning, it is still under exploration regarding how to rapidly transfer AI models from one dataset to another for clinical applications. This paper presents a novel and…

计算机视觉与模式识别 · 计算机科学 2022-04-14 Wenao Ma , Shuang Zheng , Lei Zhang , Huimao Zhang , Qi Dou

X-ray Computed Tomography (CT) is used to recover the true surfaces of fluid channels and fed to simulation tool (ANSYS) to create accurate cyber environment. The simulation tool also receives CT-assisted multiphase fluid profiles…

流体动力学 · 物理学 2024-08-06 Vaishali Sharma , Arpit Kumar , Snehlata Shakya , Mayank Goswami

Optical coherence tomography (OCT) is capable of non-destructively obtaining cross-sectional information of samples with micrometer spatial resolution, which plays an important role in ophthalmology and endovascular medicine. Measuring OCT…

医学物理 · 物理学 2023-11-30 Yang Jianlong , Zhang Haoran , Liu Chang , Gu Chengfu

Optical imaging plays a critical role in advancing our understanding of three dimensional dynamics of biological systems. Coherent imaging (CI) methods exploit spatial phase information, encoded through propagation of coherent signal light…

光学 · 物理学 2015-07-24 Jeffrey J. Field , David G. Winters , Randy A. Bartels

The measurement of three-dimensional (3D) images and the analysis of subcellular organelles are crucial for the study of the pathophysiology of cells and tissues. Optical diffraction tomography (ODT) facilitates label-free and quantitative…

图像与视频处理 · 电气工程与系统科学 2019-10-08 Taean Chang , Seungwoo Shin , Moosung Lee , YongKeun Park

In deep tissue photoacoustic imaging the spatial resolution is inherently limited by the acoustic wavelength. We present an approach for surpassing the acoustic diffraction limit by exploiting temporal fluctuations in the sample absorption…

光学 · 物理学 2017-05-31 Thomas Chaigne , Bastien Arnal , Sergey Vilov , Emmanuel Bossy , Ori Katz

Single-Photon Emission Computed Tomography (SPECT) left ventricular assessment protocols are important for detecting ischemia in high-risk patients. To quantitatively measure myocardial function, clinicians depend on commercially available…

图像与视频处理 · 电气工程与系统科学 2024-05-10 Ádám István Szűcs , Béla Kári , Oszkár Pártos

A low-cost, robust, and simple mechanism to measure hemoglobin would play a critical role in the modern health infrastructure. Consistent sample acquisition has been a long-standing technical hurdle for photometer-based portable hemoglobin…

医学物理 · 物理学 2017-12-04 Chris Wu , Tanay Tandon

Data obtained from Flow Cytometry present pronounced variability due to biological and technical reasons. Biological variability is a well-known phenomenon produced by measurements on different individuals, with different characteristics…

A major limitation of transient optical spectroscopy is that relatively high laser fluences are required to enable broadband, multichannel detection with acceptable signal-to-noise levels. Under typical experimental conditions, many…

光学 · 物理学 2023-05-03 Siedah J. Hall , Peter J. Budden , Anne Zats , Matthew Y. Sfeir

A novel approach for automated high throughput NMR spectroscopy with improved mass-sensitivity is accomplished by integrating microfluidic technologies and micro-NMR resonators. A flow system is utilized to transport a sample of interest…

仪器与探测器 · 物理学 2021-04-20 Omar Nassar , Mazin Jouda , Michael Rapp , Dario Mager , Jan G. Korvink , Neil MacKinnon

The most realistic information about the transparent sample such as a live cell can be obtained only using bright-field light microscopy. At high-intensity pulsing LED illumination, we captured a primary 12-bit-per-channel (bpc) response…

图像与视频处理 · 电气工程与系统科学 2021-08-18 Ganna Platonova , Dalibor Stys , Pavel Soucek , Kirill Lonhus , Jan Valenta , Renata Rychtarikova