Results 11 to 20 of about 85,248 (291)
Lightweight denoising speckle contrast image GAN for real-time denoising of laser speckle imaging of blood flow. [PDF]
Biomed Opt ExpressSang X +5 more
europepmc +2 more sources
Improvements of Computational Ghost Imaging by Using Sequenced Speckle
Applied Sciences, 2023 This study presents a computational ghost imaging (GI) scheme that utilizes sequenced random speckle pattern illumination. The primary objective is to develop a speckle pattern/sequence that improves computational time without compromising image quality.
Sukyoon Oh +3 more
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High-Resolution Scanning Coded-Mask-Based X-ray Multi-Contrast Imaging and Tomography
Journal of Imaging, 2021 Near-field X-ray speckle tracking has been used in phase-contrast imaging and tomography as an emerging technique, providing higher contrast images than traditional absorption radiography.
Zhi Qiao +3 more
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Nature Communications, 2023 Optical imaging in scattering media is important to many fields but remains challenging. Recent methods have focused on imaging through thin scattering layers or thicker scattering media with prior knowledge of the sample, but this still limits practical
Yaoyao Shi +3 more
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IEEE Access, 2021 The speckle phenomenon produced by coherent waves interfering with each other is undesirable in laser imaging systems. For each of the laser speckle reduction methods in the literature, it is difficult to reduce speckle to an extremely low level (<
Jun Zhou +6 more
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Speckle-Reduced Optical Coherence Tomography Using a Tunable Quasi-Supercontinuum Source
Photonics, 2023 Optical coherence tomography (OCT), which has long been used for fine-scale structure imaging with higher resolution, larger penetration depth, and more detailed information, is a fast-growing technique for biological tissue imaging.
Ying Chen +2 more
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Real-Time Laser Speckle Imaging of Blood Flow with High Gray Level and High Resolution
Shanghai Jiaotong Daxue xuebao, 2023 Laser speckle contrast imaging (LSCI) is a large measurement ranging, real-time, high spatial resolution optical imaging method. Exisiting reserches show that the low gray level (8-bit) and low resolution (752×480 pixels) camera can effectively monitor ...
ZHANG Zelong, ZHANG Yingchao, WU Bo, DONG Wei, FAN Youben
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Insights into photoacoustic speckle and applications in tumor characterization
Photoacoustics, 2019 In ultrasound imaging, fully-developed speckle arises from the spatiotemporal superposition of pressure waves backscattered by randomly distributed scatterers.
Eno Hysi +5 more
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Micromachines, 2022 Speckle patterns are formed by random interferences of mutually coherent beams. While speckles are often considered as unwanted noise in many areas, they also formed the foundation for the development of numerous speckle-based imaging, holography, and ...
Vijayakumar Anand
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Acousto-electrical speckle pattern in Lorentz force electrical impedance tomography [PDF]
, 2015 Ultrasound speckle is a granular texture pattern appearing in ultrasound imaging. It can be used to distinguish tissues and identify pathologies. Lorentz force electrical impedance tomography is an ultrasound-based medical imaging technique of the tissue
Catheline, Stefan +7 more
core +4 more sources