Results 11 to 20 of about 1,267,111 (263)

Fuzzy-Based Histogram Partitioning for Bi-Histogram Equalisation of Low Contrast Images

open access: yesIEEE Access, 2020
The conventional histogram equalisation (CHE), though being simple and widely used technique for contrast enhancement, but fails to preserve the mean brightness and natural appearance of images.
Mohammad Farhan Khan   +5 more
doaj   +1 more source

A Method Used to Improve the Dynamic Range of Shack–Hartmann Wavefront Sensor in Presence of Large Aberration

open access: yesSensors, 2022
With the successful application of the Shack–Hartmann wavefront sensor in measuring aberrations of the human eye, researchers found that, when the aberration is large, the local wavefront distortion is large, and it causes the spot corresponding to the ...
Wen Yang, Jianli Wang, Bin Wang
doaj   +1 more source

Novel Multiple-Layer Stack Capacitor and Its Application in the IRPFA Readout Circuit

open access: yesIEEE Access, 2021
In this paper, a kind of four-layer stack capacitor is proposed, which has realized the compatibility with the conventional standard $0.5~\mu \text{m}$ CMOS technology.
Qi Liu   +5 more
doaj   +1 more source

An Approach for a Wide Dynamic Range Low-Noise Current Readout Circuit

open access: yesJournal of Low Power Electronics and Applications, 2020
Designing low-noise current readout circuits at high speed is challenging. There is a need for preamplification stages to amplify weak input currents before being processed by conventional integrator based readout.
Wei Wang, Sameer Sonkusale
doaj   +1 more source

High-Sensitive Multiwavelength Dynamic Diffuse Optical Tomography System: A Preliminary Investigation

open access: yesFrontiers in Physics, 2020
Diffuse optical tomography (DOT) is a novel functional imaging technique that has the potential clinical application for breast cancer screening. Currently, an underexploited benefit of DOT is its ability to track and characterize dynamic events related ...
Limin Zhang   +10 more
doaj   +1 more source

The dynamic range of LZ [PDF]

open access: yesJournal of Instrumentation, 2016
The electronics of the LZ experiment, the 7-tonne dark matter detector to be installed at the Sanford Underground Research Facility (SURF), is designed to permit studies of physics where the energies deposited range from 1 keV of nuclear-recoil energy up to 3,000 keV of electron-recoil energy.
openaire   +4 more sources

Methods for Detection of Bioimpedance Variations in Resource Constrained Environments

open access: yesSensors, 2020
Changes in a certain parameter are often a few magnitudes smaller than the base value of the parameter, specifying significant requirements for the dynamic range and noise levels of the measurement system.
Eiko Priidel   +6 more
doaj   +1 more source

Effects of Dynamic Range and Sampling Rate of an Infrared Thermometer to the Accuracy of the Cloud Detection

open access: yesRemote Sensing, 2018
Cloud detection using downwelling radiation measured by infrared thermometer (IRT) has been utilized for many applications. The current study investigates the effects of disparate IRT specifications, including the dynamic range and sampling rates on the ...
Hye Young Won, Myoung Hwan Ahn
doaj   +1 more source

Different Heterotrimeric G Protein Dynamics for Wide-Range Chemotaxis in Eukaryotic Cells

open access: yesFrontiers in Cell and Developmental Biology, 2021
Chemotaxis describes directional motility along ambient chemical gradients and has important roles in human physiology and pathology. Typical chemotactic cells, such as neutrophils and Dictyostelium cells, can detect spatial differences in chemical ...
Yoichiro Kamimura   +3 more
doaj   +1 more source

Increasing ADC dynamic range in information-measuring systems by methods of digital signal processing [PDF]

open access: yesОмский научный вестник, 2020
The article deals with the method of increasing the dynamic range of a standard analog-to-digital converter. The method is based on interpolation of signal sections, which are limited in amplitude, using undistorted sections.
B. V. Chuvykin, M. M. Nikiforov
doaj   +1 more source

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