Review of RGB photoelasticity
A Ajovalasit, G Petrucci, M Scafidi - Optics and Lasers in Engineering, 2015 - Elsevier
Automatic methods of photoelasticity have had a significant progress with the development
of automatic acquisition and image processing methods. This article concerns RGB …
of automatic acquisition and image processing methods. This article concerns RGB …
A new rapid on-line imaging method to determine particle size distribution of granules
T Närvänen, K Seppälä, O Antikainen, J Yliruusi - Aaps Pharmscitech, 2008 - Springer
The purpose of this research was to study the feasibility of the new image analysis method in
the particle size determination of the granules. The method is capable of forming a three …
the particle size determination of the granules. The method is capable of forming a three …
Optical 3D deformation measurement utilizing non-planar surface for the development of an “intelligent tire”
R Matsuzaki, N Hiraoka, A Todoroki… - Journal of Solid …, 2010 - jstage.jst.go.jp
Intelligent tires, also known as smart tires, are equipped with sensors to monitor the strain of
the interior surface and the rolling radius of tire, and are expected to improve the reliability of …
the interior surface and the rolling radius of tire, and are expected to improve the reliability of …
Algorithm for phase shifting shadow moiré with an unknown relative step
H Du, H Zhao, B Li, Z Li, L Zheng, L Feng - Journal of Optics, 2011 - iopscience.iop.org
We report our experimental results of phase shifting shadow moiré with a constant but
unknown phase step to estimate both the wavefront phases and the phase step. The method …
unknown phase step to estimate both the wavefront phases and the phase step. The method …
Shadow moiré technology based fast method for the measurement of surface topography
H Zhao, H Du, J Li, Y Qin - Applied optics, 2013 - opg.optica.org
We present a fast phase-shifting shadow moiré device for surface topography measurement.
In our setup, multiple light sources located at different positions are controlled to illuminate …
In our setup, multiple light sources located at different positions are controlled to illuminate …
Three-frame self-calibration phase shift algorithm using the Gram–Schmidt orthonormalization approach
H Du, H Gao - Applied Optics, 2016 - opg.optica.org
Affected by the height dependent effects, the phase-shifting shadow moiré can only be
implemented in an approximate way. In the technique, a fixed phase step around π/2 rad …
implemented in an approximate way. In the technique, a fixed phase step around π/2 rad …
Simultaneous measurement of 3-D displacement components from circular grating moiré fringes: An experimental approach
KS Yen, MM Ratnam - Optics and Lasers in Engineering, 2012 - Elsevier
The moiré patterns formed by two overlap** circular gratings with slightly different periods
were used for 2-D (in-plane) displacement measurement in a recently published paper. In …
were used for 2-D (in-plane) displacement measurement in a recently published paper. In …
Three frames phase-shifting shadow moiré using arbitrary unknown phase steps
H Du, H Zhao, B Li, J Zhao, S Cao - Measurement Science and …, 2012 - iopscience.iop.org
A method combining the spatial and temporal fringe analysis techniques is proposed to
extract the phase from shadow moiré interferogram with random phase shift. The proposed …
extract the phase from shadow moiré interferogram with random phase shift. The proposed …
Phase-shifting shadow moiré based on iterative self-tuning algorithm
H Du, H Zhao, B Li, J Zhao, S Cao - Applied Optics, 2011 - opg.optica.org
We proposed a general algorithm for phase-shifting shadow moiré by an iterative self-tuning
algorithm. In our proposed system, the grating is translated in equal distance to introduce …
algorithm. In our proposed system, the grating is translated in equal distance to introduce …
[PDF][PDF] Multiplicative phase-shifting interferometry using optical flow
Phase-shifting interferometry (PSI) is an optical metrology technique for measuring the
modulated phase of interferograms, using a controlled phase change or piston term …
modulated phase of interferograms, using a controlled phase change or piston term …