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相关论文: Sources of Variance in Two-Photon Microscopy Neuro…

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Image registration is a widely-used technique in analysing large scale datasets that are captured through various imaging modalities and techniques in biomedical imaging such as MRI, X-Rays, etc. These datasets are typically collected from…

计算机视觉与模式识别 · 计算机科学 2020-09-22 Hassan Mahmood , Asim Iqbal , Syed Mohammed Shamsul Islam

There are two major questions that neuroimaging studies attempt to answer: First, how are sensory stimuli represented in the brain (which we term the stimulus-based setting)? And, second, how does the brain generate cognition (termed the…

神经元与认知 · 定量生物学 2017-05-01 Sebastian Weichwald , Moritz Grosse-Wentrup

We develop a Bayesian bivariate spatial model for multivariate regression analysis applicable to studies examining the influence of genetic variation on brain structure. Our model is motivated by an imaging genetics study of the Alzheimer's…

统计方法学 · 统计学 2020-05-26 Yin Song , Shufei Ge , Jiguo Cao , Liangliang Wang , Farouk S. Nathoo

Significance: This work targets the contamination of optical signals by superficial hemodynamics, which is one of the chief hurdles in non-invasive optical measurements of the human brain. Aim: To identify optimal source-detector distances…

医学物理 · 物理学 2023-01-05 Giles Blaney , Cristianne Fernandez , Angelo Sassaroli , Sergio Fantini

Photoacoustic fluctuation imaging, which exploits randomness in photoacoustic generation, provides enhanced images in terms of resolution and visibility, as compared to conventional photoacoustic images. While a few experimental…

光学 · 物理学 2020-11-19 Sergey Vilov , Guillaume Godefroy , Bastien Arnal , Emmanuel Bossy

The internal deformation of the brain is far more complex than the rigid motion of the skull. An ultrasound imaging technique that we have developed has a combination of penetration, frame-rate, and motion detection accuracy required to…

软凝聚态物质 · 物理学 2017-11-08 David Espindola , Stephen Lee , Gianmarco Pinton

Calcium imaging allows for the parallel measurement of large neuronal populations in a spatially resolved and minimally invasive manner, and has become a gold-standard for neuronal functionality. While deep generative models have been…

神经元与认知 · 定量生物学 2025-10-02 Berta Ros , Mireia Olives-Verger , Caterina Fuses , Josep M Canals , Jordi Soriano , Jordi Abante

Individual Neurons in the nervous systems exploit various dynamics. To capture these dynamics for single neurons, we tune the parameters of an electrophysiological model of nerve cells, to fit experimental data obtained by calcium imaging.…

定量方法 · 定量生物学 2017-11-07 Magdalena Fuchs , Manuel Zimmer , Radu Grosu , Ramin M. Hasani

Neuronal brain activity in response to repeated stimuli can be perceived using functional magnetic resonance imaging (fMRI). In this paper, we develop a statistical model for fMRI data that estimates both the associated haemodynamic…

应用统计 · 统计学 2015-01-26 Christopher J. Brignell , William J. Browne , Ian L. Dryden , Susan T. Francis

We show that the modulation of the phases of the laser beams of ultra-short pulses leads to modulation of the two photon fluorescence intensity. The phase modulation technique when used in multi-photon microscopy can improve the signal to…

光学 · 物理学 2015-03-12 Khadga Jung Karki , Mohammed Abdellah , Tonu Pullerits

In this paper, we present a novel region-based segmentation method for cortical spreading depressions in 2-photon microscopy images. Fluorescent microscopy has become an important tool in neuroscience, but segmentation approaches are…

图像与视频处理 · 电气工程与系统科学 2019-02-04 M. Filip Sluzewski , Petr Tvrdik , Scott T. Acton

We present Photon Splatting, a physics-guided neural surrogate model for real-time wireless channel prediction in complex environments. The proposed framework introduces surface-attached virtual sources, referred to as photons, which carry…

机器学习 · 计算机科学 2025-07-08 Ge Cao , Gabriele Gradoni , Zhen Peng

In living organisms, the natural motion caused by the heartbeat, breathing, or muscle movements leads to the deformation of tissue caused by translation and stretching of the tissue structure. This effect results in the displacement or…

The radiative quantum cascade, i.e. the consecutive emission of photons from a ladder of energy levels, is of fundamental importance in quantum optics. For example, the two-photon cascaded emission from calcium atoms was used in pioneering…

Understanding how the brain encodes visual information is a central challenge in neuroscience and machine learning. A promising approach is to reconstruct visual stimuli, essentially images, from functional Magnetic Resonance Imaging (fMRI)…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Zheng Huang , Enpei Zhang , Weikang Qiu , Yinghao Cai , Carl Yang , Elynn Chen , Xiang Zhang , Rex Ying , Dawei Zhou , Yujun Yan

Transient brain-wide neuroimaging on a microscopic scale is pivotal for brain research, yet current modalities face challenges in meeting such spatiotemporal requirements. Functional ultrasound (fUS) enables transient neurovascular imaging…

医学物理 · 物理学 2025-12-09 Yang Cai , Shaoyuan Yan , Long Xu , Yanfeng Zhu , Bo Li , Kailiang Xu

The statistics of the light emitted by two-level lasers is evaluated on the basis of generalized rate equations. According to that approach, all fluctuations are interpreted as being caused by the jumps that occur in active and detecting…

量子物理 · 物理学 2009-11-07 Laurent Chusseau , Jacques Arnaud , Fabrice Philippe

We report on resonance Raman spectroscopy measurements with excitation photon energy down to 1.16 eV on graphene, to study how low-energy carriers interact with lattice vibrations. Thanks to the excitation energy close to the Dirac point at…

Even during fixation the human eye is constantly in low amplitude motion, jittering over small angles in random directions at up to 100Hz. This motion results in all features of the image on the retina constantly traversing a number of…

计算机视觉与模式识别 · 计算机科学 2025-06-17 David W Arathorn , Josephine C. D'Angelo , Austin Roorda

Neuroimaging data, particularly from techniques like MRI or PET, offer rich but complex information about brain structure and activity. To manage this complexity, latent representation models - such as Autoencoders, Generative Adversarial…

计算机视觉与模式识别 · 计算机科学 2024-12-31 C. Vázquez-García , F. J. Martínez-Murcia , F. Segovia Román , Juan M. Górriz