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High-speed surface profilometry based on an adaptive microscope with axial chromatic encoding
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ISBN: 1000125427 3731510618 Year: 2021 Publisher: Karlsruhe KIT Scientific Publishing

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An adaptive microscope with axial chromatic encoding is designed and developed, namely the AdaScope. With the ability to confocally address any locations within the measurement volume, the AdaScope provides the hardware foundation for a cascade measurement strategy to be developed, dramatically accelerating the speed of 3D confocal microscopy.


Book
Close-range photogrammetry and 3D imaging
Authors: --- ---
ISBN: 3110302780 9783110302783 3110302691 9783110302691 Year: 2014 Publisher: Berlin : Walter de Gruyter GmbH & Co. KG,

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This is the second edition of the established guide to close-range photogrammetry which uses accurate imaging techniques to analyse the three-dimensional shape of a wide range of manufactured and natural objects. After more than 20 years of use, close-range photogrammetry, now for the most part entirely digital, has become an accepted, powerful and readily available technique for engineers, scientists and others who wish to utilise images to make accurate 3D measurements of complex objects. Here they will find the photogrammetric fundamentals, details of system hardware and software, and broad range of real-world applications in order to achieve this. Following the introduction, the book provides fundamental mathematics covering subjects such as image orientation, digital imaging processing and 3D reconstruction methods, as well as a discussion of imaging technology, including targeting and illumination, and its implementation in hardware and software. It concludes with an overview of photogrammetric solutions for typical applications in engineering, manufacturing, medical science, architecture, archaeology and other fields.


Book
Optical MEMS
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ISBN: 3039213040 3039213032 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Optical microelectromechanical systems (MEMS), microoptoelectromechanical systems (MOEMS), or optical microsystems are devices or systems that interact with light through actuation or sensing at a micro- or millimeter scale. Optical MEMS have had enormous commercial success in projectors, displays, and fiberoptic communications. The best-known example is Texas Instruments’ digital micromirror devices (DMDs). The development of optical MEMS was impeded seriously by the Telecom Bubble in 2000. Fortunately, DMDs grew their market size even in that economy downturn. Meanwhile, in the last one and half decade, the optical MEMS market has been slowly but steadily recovering. During this time, the major technological change was the shift of thin-film polysilicon microstructures to single-crystal–silicon microsructures. Especially in the last few years, cloud data centers are demanding large-port optical cross connects (OXCs) and autonomous driving looks for miniature LiDAR, and virtual reality/augmented reality (VR/AR) demands tiny optical scanners. This is a new wave of opportunities for optical MEMS. Furthermore, several research institutes around the world have been developing MOEMS devices for extreme applications (very fine tailoring of light beam in terms of phase, intensity, or wavelength) and/or extreme environments (vacuum, cryogenic temperatures) for many years. Accordingly, this Special Issue seeks to showcase research papers, short communications, and review articles that focus on (1) novel design, fabrication, control, and modeling of optical MEMS devices based on all kinds of actuation/sensing mechanisms; and (2) new developments of applying optical MEMS devices of any kind in consumer electronics, optical communications, industry, biology, medicine, agriculture, physics, astronomy, space, or defense.

Keywords

stray light --- input shaping --- n/a --- wavefront sensing --- signal-to-noise ratio (SNR) --- LC micro-lenses controlled electrically --- infrared --- intraoperative microscope --- MEMS mirror --- MLSSP --- ocular aberrations --- MEMS scanning micromirror --- electrothermal actuation --- electrothermal bimorph --- open-loop control --- wavelength dependent loss (WDL) --- NIR fluorescence --- infrared Fabry–Perot (FP) filtering --- two-photon --- resonant MEMS scanner --- residual oscillation --- 3D measurement --- parametric resonance --- digital micromirror device --- quality map --- metalens --- flame retardant 4 (FR4) --- angle sensor --- optical switch --- metasurface --- vibration noise --- optical coherence tomography --- spectrometer --- reliability --- quasistatic actuation --- Huygens’ metalens --- confocal --- large reflection variations --- electrostatic --- dual-mode liquid-crystal (LC) device --- field of view (FOV) --- scanning micromirror --- fluorescence confocal --- variable optical attenuator (VOA) --- micro-electro-mechanical systems (MEMS) --- microscanner --- laser stripe width --- polarization dependent loss (PDL) --- fringe projection --- 2D Lissajous --- usable scan range --- laser stripe scanning --- bio-optical imaging --- MEMS scanning mirror --- digital micromirror device (DMD) --- Cu/W bimorph --- echelle grating --- achromatic --- DMD chip --- tunable fiber laser --- programmable spectral filter --- higher-order modes --- electromagnetic actuator --- infrared Fabry-Perot (FP) filtering --- Huygens' metalens


Book
Imaging Sensors and Applications
Authors: ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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In past decades, various sensor technologies have been used in all areas of our lives, thus improving our quality of life. In particular, imaging sensors have been widely applied in the development of various imaging approaches such as optical imaging, ultrasound imaging, X-ray imaging, and nuclear imaging, and contributed to achieve high sensitivity, miniaturization, and real-time imaging. These advanced image sensing technologies play an important role not only in the medical field but also in the industrial field. This Special Issue covers broad topics on imaging sensors and applications. The scope range of imaging sensors can be extended to novel imaging sensors and diverse imaging systems, including hardware and software advancements. Additionally, biomedical and nondestructive sensing applications are welcome.

Keywords

Technology: general issues --- fluorescence LiDAR --- laser-induced fluorescence --- vegetation monitoring --- classification discrimination --- 3D measurement --- fringe projection --- 3D Fourier transform --- phase unwrapping --- phase measurement --- ultrasound --- photoacoustic imaging --- photoacoustic microscopy --- biomedical imaging --- multifocal point transducer --- wave patterns --- analytical model --- directivity pattern --- guided wave (GW) --- non-destructive testing (NDT) --- macro-fiber composite (MFC) --- transducer --- elastography --- soft tissue --- nonlinearity --- viscoelasticity --- acoustic emission --- hydrogel --- nanosilica --- transcranial --- skull bone --- aberration --- photoacoustic --- distortion --- brain imaging --- balloon catheter --- image guiding --- medical diagnostic imaging --- ultrasonic imaging --- abdominal ultrasound --- plane wave imaging --- diverging wave imaging --- synthetic focusing --- back muscle stiffness --- spine --- elasticity --- shear-wave elastography (SWE) --- tissue ultrasound palpation system (TUPS) --- reliability --- Young’s modulus --- carfilzomib --- peripheral vasculature --- quantitative analysis --- transrectal probe --- optical lens --- ultrasound imaging --- prostate cancer --- optical coherence tomography --- quad-scanner scanning strategy --- whole-directional scanning --- full-directional imaging --- IoT --- remote control --- remote operation --- remote sharing economy --- research equipment sharing --- two-photon laser scanning microscopy --- MQTT --- deep learning --- ensemble learning --- brain tumor classification --- machine learning --- transfer learning --- around view monitoring system --- automatic camera calibration --- vision-based advanced driver assistance systems --- high-frequency ultrasound --- ophthalmic imaging --- synthetic aperture --- convex array transducer --- bandwidth expander --- ultrasound transducer device --- power amplifier --- super-resolution --- clinical applications --- n/a --- Young's modulus


Book
Imaging Sensors and Applications
Authors: ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

In past decades, various sensor technologies have been used in all areas of our lives, thus improving our quality of life. In particular, imaging sensors have been widely applied in the development of various imaging approaches such as optical imaging, ultrasound imaging, X-ray imaging, and nuclear imaging, and contributed to achieve high sensitivity, miniaturization, and real-time imaging. These advanced image sensing technologies play an important role not only in the medical field but also in the industrial field. This Special Issue covers broad topics on imaging sensors and applications. The scope range of imaging sensors can be extended to novel imaging sensors and diverse imaging systems, including hardware and software advancements. Additionally, biomedical and nondestructive sensing applications are welcome.

Keywords

Technology: general issues --- fluorescence LiDAR --- laser-induced fluorescence --- vegetation monitoring --- classification discrimination --- 3D measurement --- fringe projection --- 3D Fourier transform --- phase unwrapping --- phase measurement --- ultrasound --- photoacoustic imaging --- photoacoustic microscopy --- biomedical imaging --- multifocal point transducer --- wave patterns --- analytical model --- directivity pattern --- guided wave (GW) --- non-destructive testing (NDT) --- macro-fiber composite (MFC) --- transducer --- elastography --- soft tissue --- nonlinearity --- viscoelasticity --- acoustic emission --- hydrogel --- nanosilica --- transcranial --- skull bone --- aberration --- photoacoustic --- distortion --- brain imaging --- balloon catheter --- image guiding --- medical diagnostic imaging --- ultrasonic imaging --- abdominal ultrasound --- plane wave imaging --- diverging wave imaging --- synthetic focusing --- back muscle stiffness --- spine --- elasticity --- shear-wave elastography (SWE) --- tissue ultrasound palpation system (TUPS) --- reliability --- Young’s modulus --- carfilzomib --- peripheral vasculature --- quantitative analysis --- transrectal probe --- optical lens --- ultrasound imaging --- prostate cancer --- optical coherence tomography --- quad-scanner scanning strategy --- whole-directional scanning --- full-directional imaging --- IoT --- remote control --- remote operation --- remote sharing economy --- research equipment sharing --- two-photon laser scanning microscopy --- MQTT --- deep learning --- ensemble learning --- brain tumor classification --- machine learning --- transfer learning --- around view monitoring system --- automatic camera calibration --- vision-based advanced driver assistance systems --- high-frequency ultrasound --- ophthalmic imaging --- synthetic aperture --- convex array transducer --- bandwidth expander --- ultrasound transducer device --- power amplifier --- super-resolution --- clinical applications --- n/a --- Young's modulus


Book
Imaging Sensors and Applications
Authors: ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

Loading...
Export citation

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Bookmark

Abstract

In past decades, various sensor technologies have been used in all areas of our lives, thus improving our quality of life. In particular, imaging sensors have been widely applied in the development of various imaging approaches such as optical imaging, ultrasound imaging, X-ray imaging, and nuclear imaging, and contributed to achieve high sensitivity, miniaturization, and real-time imaging. These advanced image sensing technologies play an important role not only in the medical field but also in the industrial field. This Special Issue covers broad topics on imaging sensors and applications. The scope range of imaging sensors can be extended to novel imaging sensors and diverse imaging systems, including hardware and software advancements. Additionally, biomedical and nondestructive sensing applications are welcome.

Keywords

fluorescence LiDAR --- laser-induced fluorescence --- vegetation monitoring --- classification discrimination --- 3D measurement --- fringe projection --- 3D Fourier transform --- phase unwrapping --- phase measurement --- ultrasound --- photoacoustic imaging --- photoacoustic microscopy --- biomedical imaging --- multifocal point transducer --- wave patterns --- analytical model --- directivity pattern --- guided wave (GW) --- non-destructive testing (NDT) --- macro-fiber composite (MFC) --- transducer --- elastography --- soft tissue --- nonlinearity --- viscoelasticity --- acoustic emission --- hydrogel --- nanosilica --- transcranial --- skull bone --- aberration --- photoacoustic --- distortion --- brain imaging --- balloon catheter --- image guiding --- medical diagnostic imaging --- ultrasonic imaging --- abdominal ultrasound --- plane wave imaging --- diverging wave imaging --- synthetic focusing --- back muscle stiffness --- spine --- elasticity --- shear-wave elastography (SWE) --- tissue ultrasound palpation system (TUPS) --- reliability --- Young’s modulus --- carfilzomib --- peripheral vasculature --- quantitative analysis --- transrectal probe --- optical lens --- ultrasound imaging --- prostate cancer --- optical coherence tomography --- quad-scanner scanning strategy --- whole-directional scanning --- full-directional imaging --- IoT --- remote control --- remote operation --- remote sharing economy --- research equipment sharing --- two-photon laser scanning microscopy --- MQTT --- deep learning --- ensemble learning --- brain tumor classification --- machine learning --- transfer learning --- around view monitoring system --- automatic camera calibration --- vision-based advanced driver assistance systems --- high-frequency ultrasound --- ophthalmic imaging --- synthetic aperture --- convex array transducer --- bandwidth expander --- ultrasound transducer device --- power amplifier --- super-resolution --- clinical applications --- n/a --- Young's modulus

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