[HTML][HTML] In-situ iron oxide particle size and shape evolution during the dissolution in oxalic acid

M Lausch, P Brockmann, F Schmitt, BJM Etzold… - Chemical Engineering …, 2024 - Elsevier
In this study, the influence of temperature (40, 60 and 80∘ C) and light exposure on the
dissolution of Image 1 particles in aqueous, oxalic acid (0.45 mol/l) is experimentally …

3D image acquisition system based on shape from focus technique

B Billiot, F Cointault, L Journaux, JC Simon, P Gouton - Sensors, 2013 - mdpi.com
This paper describes the design of a 3D image acquisition system dedicated to natural
complex scenes composed of randomly distributed objects with spatial discontinuities. In …

Evaluation of focus measures for the autofocus of line scan cameras

X Xia, Y Yao, J Liang, S Fang, Z Yang, D Cui - Optik, 2016 - Elsevier
Plenty of focus measures have been proposed and researched in the past few years.
However, little attention is paid to their performance in the autofocus of line scan cameras …

Image processing of advance milling cutters to automate the measurement of the geometric parameters of the cutting edge on optical measuring systems

PM Pivkin, IV Minin, MA Volosova… - SPIE Future …, 2021 - spiedigitallibrary.org
This article proposes a method for finding the focal length for determining the coordinates of
the cutting edge on the toroidal section of the end producing surface, formed on the basis of …

Ultra-high-speed variable focus optics for novel applications in advanced imaging

S Kang, E Dotsenko, D Amrhein… - Photonic …, 2018 - spiedigitallibrary.org
With the advancement of ultra-fast manufacturing technologies, high speed imaging with
high 3D resolution has become increasingly important. Here we show the use of an ultra …

A depth from defocus measurement system using a liquid lens objective for extended depth range

S Pasinetti, I Bodini, M Lancini… - IEEE Transactions …, 2017 - ieeexplore.ieee.org
A novel depth from defocus (DFD) measurement system is presented, where the extension
of the measurement range is performed using an emergent technology based on liquid …

Automatic focus and fusion image algorithm using nonlinear correlation: Image quality evaluation

AR Cabazos-Marín, J Álvarez-Borrego - Optik, 2018 - Elsevier
We propose a new autofocus and fusion algorithm to enhance the characteristics of the
image in less run-time. The autofocus method selects the best-focused image (BFI) in a …

Robust 3D surface recovery by applying a focus criterion in white light scanning interference microscopy

H Altamar-Mercado, A Patiño-Vanegas, AG Marrugo - Applied Optics, 2019 - opg.optica.org
White light scanning interference (WLSI) microscopes provide an accurate surface
topography of engineered surfaces. However, the measurement accuracy is substantially …

Focus Estimation Methods for Use in Industrial SFF Imaging Systems

A Sioma, B Lenty - Applied Sciences, 2024 - mdpi.com
A Shape-From-Focus (SFF) is a three-dimensional imaging method based on focus
information. It is not yet widely used for in-line industrial inspection or measurement tasks …

A fast and precise autofocus method using linear array CCD

Z Wang, R Ma, C Zeng, L Liu, X Li… - Optical Metrology and …, 2024 - spiedigitallibrary.org
In the integrated chip industry, there is a growing demand of defect detection, and the
autofocus capability of microscopy can significantly enhance efficiency. This paper presents …