Results 11 to 20 of about 5,554,949 (261)

Contrast-to-noise ratio.

open access: yes, 2020
Contrast-to-noise ratio.
Minah Han (4966984)   +2 more
core   +2 more sources

Fano Resonances in Plasmonic Ring‐Disc‐Pair Systems

open access: yesAdvanced Photonics Research, 2023
Fano resonances in plasmonic nanostructures, generated by the spectral interference between a broad resonance or continuum and a narrow resonance, have attracted significant interest in recent literature.
Wei Tao   +4 more
doaj   +1 more source

An Image Quality Improvement Method in Side-Scan Sonar Based on Deconvolution

open access: yesRemote Sensing, 2023
Side-scan sonar (SSS) is an important underwater imaging method that has high resolutions and is convenient to use. However, due to the restriction of conventional pulse compression technology, the side-scan sonar beam sidelobe in the range direction is ...
Jia Liu   +3 more
doaj   +1 more source

Detecting Salient Image Objects Using Color Histogram Clustering for Region Granularity

open access: yesJournal of Imaging, 2021
Salient object detection represents a novel preprocessing stage of many practical image applications in the discipline of computer vision. Saliency detection is generally a complex process to copycat the human vision system in the processing of color ...
Seena Joseph, Oludayo O. Olugbara
doaj   +1 more source

Monte Carlo simulation on the imaging contrast enhancement in nanoparticle-enhanced radiotherapy

open access: yesJournal of Medical Physics, 2018
This study focused on the imaging in radiotherapy by finding the relationship between the imaging contrast ratio and appropriate gold, iodine, iron oxide, silver, and platinum nanoparticle concentrations; the relationship between the imaging contrast ...
Ferdos Albayedh, James C. L. Chow
doaj   +1 more source

The Comparative Evaluation of the Translucency of Crowns Fabricated with Three Different All-Ceramic Materials: An in Vitro Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2015
Introduction: All-ceramic crowns with different core materials of different strength and aesthetics are available in recent years. The aesthetics of the crown depends mainly on the shade and translucency.
Y. Sravanthi   +4 more
doaj   +1 more source

Image Quality Analysis and Optical Performance Requirement for Micromirror-Based Lissajous Scanning Displays

open access: yesSensors, 2016
Micromirror-based scanning displays have been the focus of a variety of applications. Lissajous scanning displays have advantages in terms of power consumption; however, the image quality is not good enough.
Weiqi Du, Gaofei Zhang, Liangchen Ye
doaj   +1 more source

High-Performance All-Optical Logic Operations Using Ψ-Shaped Silicon Waveguides at 1.55 μm

open access: yesMicromachines, 2023
We simulate with FDTD solutions a complete family of basic Boolean logic operations, which includes XOR, AND, OR, NOT, NOR, NAND, and XNOR, by using compact Ψ-shaped silicon-on-silica optical waveguides that are operated at a 1.55 μm telecommunications ...
Amer Kotb   +2 more
doaj   +1 more source

Fermentation substrate ratio of contrast experiment for biomethane production.

open access: yes, 2023
Fermentation substrate ratio of contrast experiment for biomethane production.
Weizhong Zhao (801902)   +6 more
core   +1 more source

2 × 2 Compact Silicon Waveguide-Based Optical Logic Functions at 1.55 μm

open access: yesPhotonics, 2023
Compact waveguide crossing is a fundamental component of optoelectronic fusion chip solutions due to its orders-of-magnitude smaller footprint than that of conventional photonic integrated circuits.
Amer Kotb, Kyriakos E. Zoiros
doaj   +1 more source

Home - About - Disclaimer - Privacy