Results 41 to 50 of about 230,662 (251)
Are Movement Artifacts in Magnetic Resonance Imaging a Real Problem?—A Narrative Review
Frontiers in Neurology, 2017 Movement artifacts compromise image quality and may interfere with interpretation, especially in magnetic resonance imaging (MRI) applications with low signal-to-noise ratio such as functional MRI or diffusion tensor imaging, and when imaging small ...
Inger Havsteen +5 more
doaj +1 more source
Parameter Simulation and Design of an Airborne Hyperspectral Imaging LiDAR System
Remote Sensing, 2021 With continuous technological development, the future development trend of LiDAR in the field of remote sensing and mapping is to obtain the elevation and spectral information of ground targets simultaneously.
Liyong Qian +6 more
doaj +1 more source
Diffusion tensor MR microscopy of tissues with low diffusional anisotropy
Radiology and Oncology, 2016 Diffusion tensor imaging exploits preferential diffusional motion of water molecules residing within tissue compartments for assessment of tissue structural anisotropy.
Bajd Franci +3 more
doaj +1 more source
Data-Decoupled Scattering Imaging Method Based on Autocorrelation Enhancement
Applied Sciences, 2023 Target recovery through scattering media is an important aspect of optical imaging. Although various algorithms combining deep-learning methods for target recovery through scattering media exist, they have limitations in terms of robustness and ...
Chen Wang +6 more
doaj +1 more source
Exploring the Potential of Airyscan Microscopy for Live Cell Imaging
Photonics, 2017 Biological research increasingly demands the use of non-invasive and ultra-sensitive imaging techniques. The Airyscan technology was recently developed to bridge the gap between conventional confocal and super-resolution microscopy.
Kseniya Korobchevskaya +3 more
doaj +1 more source
Measuring signal-to-noise ratio in partially parallel imaging MRI.
Medical Physics (Lancaster), 2011 PURPOSE To assess five different methods of signal-to-noise ratio (SNR) measurement for partially parallel imaging (PPI) acquisitions. METHODS Measurements were performed on a spherical phantom and three volunteers using a multichannel head coil a ...
F. Goerner, G. Clarke
semanticscholar +1 more source
Efficient and Noise Robust Photon-Counting Imaging with First Signal Photon Unit Method
Photonics, 2021 Efficient photon-counting imaging in low signal photon level is challenging, especially when noise is intensive. In this paper, we report a first signal photon unit (FSPU) method to rapidly reconstruct depth image from sparse signal photon counts with ...
Kangjian Hua +4 more
doaj +1 more source
Results in Physics, 2023 In this work, it is demonstrated that metamaterial lenses can help to increase the signal-to-noise ratio of magnetic resonance imaging coils in low-field magnetic resonance imaging systems.
Manuel J. Freire +2 more
doaj
Parameter Optimization for Low-Rank Matrix Recovery in Hyperspectral Imaging
Applied Sciences, 2023 An approach to parameter optimization for the low-rank matrix recovery method in hyperspectral imaging is discussed. We formulate an optimization problem with respect to the initial parameters of the low-rank matrix recovery method.
Monika Wolfmayr
doaj +1 more source
Scattering-lens based quantum imaging beyond shot noise
Scientific Reports, 2021 The scheme of optical imaging using scattering lens can provide a resolution beyond the classical optical diffraction limit with a coherent-state input.
Dong Li, Yao Yao
doaj +1 more source