Results 151 to 160 of about 681,617 (202)
Some of the next articles are maybe not open access.
Phase imaging using shifted wavefront sensor images
Optics Letters, 2014We propose a new approach to the complete retrieval of a coherent field (amplitude and phase) using the same hardware configuration as a Shack-Hartmann sensor but with two modifications: first, we add a transversally shifted measurement to resolve ambiguities in the measured phase; and second, we employ factored form descent (FFD), an inverse algorithm
Zhengyun, Zhang +3 more
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Sensors and Actuators, 1986
After a short treatment of the basic principles involved in visible-light image sensors the factors determining resolution, sensitivity and dynamic range are discussed. Recent improvements in XY-addressed, interline and frame transfer sensors are presented to demonstrate the versatility of design and technology.
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After a short treatment of the basic principles involved in visible-light image sensors the factors determining resolution, sensitivity and dynamic range are discussed. Recent improvements in XY-addressed, interline and frame transfer sensors are presented to demonstrate the versatility of design and technology.
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IEEE Journal of Solid-State Circuits, 1970
The development and evaluation of a germanium imaging sensor is described. The sensor, comprised of an electron-beam-scanned photodiode array, was designed for air-glow operation. Surface- barrier photodiode arrays were developed for optimized imaging, and their processing provided a powerful technique for preserving the characteristic properties of ...
D.W. Boone, E.E. Harp, M.M. Whatley
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The development and evaluation of a germanium imaging sensor is described. The sensor, comprised of an electron-beam-scanned photodiode array, was designed for air-glow operation. Surface- barrier photodiode arrays were developed for optimized imaging, and their processing provided a powerful technique for preserving the characteristic properties of ...
D.W. Boone, E.E. Harp, M.M. Whatley
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Current Opinion in Chemical Biology, 2002
Imaging optical fibres have been etched to prepare microwell arrays. These microwells have been loaded with sensing materials such as bead-based sensors and living cells to create high-density sensor arrays. The extremely small sizes and volumes of the wells enable high sensitivity and high information content sensing capabilities.
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Imaging optical fibres have been etched to prepare microwell arrays. These microwells have been loaded with sensing materials such as bead-based sensors and living cells to create high-density sensor arrays. The extremely small sizes and volumes of the wells enable high sensitivity and high information content sensing capabilities.
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Magnetic Resonance Imaging, 2003
A portable single sided sensor to render depth profiles of MR signal non-invasively is presented. The device utilizes a tailored permanent magnet array producing flat sensitive volumes up to 40 mm from the mobile inspection head. Automated slice selection is performed using a set of switched capacitors in the tuning and receiver circuits.
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A portable single sided sensor to render depth profiles of MR signal non-invasively is presented. The device utilizes a tailored permanent magnet array producing flat sensitive volumes up to 40 mm from the mobile inspection head. Automated slice selection is performed using a set of switched capacitors in the tuning and receiver circuits.
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CMOS Image Sensors and the Quanta Image Sensor
2018 International Conference on Optical MEMS and Nanophotonics (OMN), 2018This paper briefly reviews CMOS image sensor invention and development. The focus of the paper is on a possible successor - the Quanta Image Sensor – a photon-counting image sensor that operates at room temperature without avalanche multiplication. Experimental results with 1Mpixel array devices are described.
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2019
The image sensor (1) includes a body module (10), and a lens module (20) and an imaging module (30) installed in the body module (10). The body module (10) includes: a correction part (11) performing shading correction on image data outputted by the imaging module (30) according to the set shading correction information; an acquisition part (14 ...
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The image sensor (1) includes a body module (10), and a lens module (20) and an imaging module (30) installed in the body module (10). The body module (10) includes: a correction part (11) performing shading correction on image data outputted by the imaging module (30) according to the set shading correction information; an acquisition part (14 ...
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2009
Chapter 4 presented fundamental concepts of vision sensor technologies in terms of photoreceptors, pixels, and signal processing circuits. This chapter provides a survey of vision sensor architectures and physical structures. Typical image sensor floorplans as well as exotic geometries realized over the past two decades are presented. Furthermore, this
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Chapter 4 presented fundamental concepts of vision sensor technologies in terms of photoreceptors, pixels, and signal processing circuits. This chapter provides a survey of vision sensor architectures and physical structures. Typical image sensor floorplans as well as exotic geometries realized over the past two decades are presented. Furthermore, this
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Image-based profiling for drug discovery: due for a machine-learning upgrade?
Nature Reviews Drug Discovery, 2020Srinivas Niranj Chandrasekaran +2 more
exaly