Innovative Image Processing Method to Improve Autofocusing Accuracy [PDF]
Sensors, 2022 For automated optical inspection, autofocusing microscopes play an important role in capturing clear images of the measured object. At present, the image processing part of optics-based autofocusing microscopes often has various factors, which makes it ...
Chien-Sheng Liu +2 more
exaly +4 more sources
Abrupt autofocusing performance of a circular Airyprime beam with vortex pairs
Results in Physics, 2023 Abrupt autofocusing performance of a circular Airyprime beam (CAPB) with vortex pairs propagating in free space is investigated. Here the vortex pairs are off-axis by default.
Xiang Zang
exaly +3 more sources
Autofocusing of Maneuvering Targets in Terahertz Inverse Synthetic Aperture Radar Imaging Based on Damped Newton Method [PDF]
Sensors, 2022 Maneuvering target imaging based on inverse synthetic aperture radar (ISAR) imaging has recently drawn significant attention. Among the many autofocusing technologies which are crucial in ISAR imaging, minimum-entropy-based autofocusing (MEA) is highly ...
Hetong Wang +3 more
doaj +2 more sources
A Novel Fuzzy Controller for Visible-Light Camera Using RBF-ANN: Enhanced Positioning and Autofocusing [PDF]
Sensors, 2022 To obtain high-precision for focal length fitting and improve the visible-light camera autofocusing speed, simultaneously, the backlash caused by gear gaps is eliminated.
Junpeng Zhou +4 more
doaj +2 more sources
Robust autofocusing for scanning electron microscopy based on a dual deep learning network [PDF]
Scientific Reports, 2021 Scanning electron microscopy (SEM) is a high-resolution imaging technique with subnanometer spatial resolution that is widely used in materials science, basic science, and nanofabrication.
Woojin Lee +5 more
doaj +2 more sources
Fast autofocusing based on single-pixel moment detection [PDF]
Communications EngineeringTraditional image processing-based autofocusing techniques require the acquisition, storage, and processing of large amounts of image sequences, constraining focusing speed and cost.
Huiling Chen +6 more
doaj +2 more sources
Implementation and Optimization of a Dual-confocal Autofocusing System
Sensors, 2020 This paper describes the implementation and optimization of a dual-confocal autofocusing system that can easily describe a real-time position by measuring the response signal (i.e., intensity) of the front and the rear focal points of the system. This is
Chien-Sheng Liu +2 more
exaly +3 more sources
Experimental generation of arbitrary abruptly autofusing Circular Airy Gaussian vortex vector beams [PDF]
Scientific Reports, 2022 Complex vector modes represent a general state of light nonseparable in their spatial and polarization degrees of freedom, which have inspired a wide variety of novel applications and phenomena, such as their unexpected propagation behaviour. For example,
Xiao-Bo Hu +3 more
doaj +2 more sources
Passive Autofocusing System for a Thermal Camera [PDF]
IEEE Access, 2020 Most of the Thermal (Infrared) cameras nowadays are equipped with a motorized lens for focusing a scene manually. The subjective nature of manual focusing makes it an inefficient and cumbersome process.
Rashid Ali +6 more
doaj +2 more sources
Robust autofocusing in microscopy [PDF]
Cytometry, 2000 A critical step in automatic microscopy is focusing. This report describes a robust and fast autofocus approach useful for a wide range of microscopic modalities and preparations.The focus curve is measured over the complete focal range, reducing the chance that the best focus position is determined by dust or optical artifacts.
Geusebroek, J.M. +3 more
openaire +6 more sources