A review of surface roughness measurements based on laser speckle method
M Shao, D Xu, S Li, X Zuo, C Chen, G Peng… - Journal of Iron and Steel …, 2023 - Springer
Surface roughness is commonly used to characterize material microstructure during
processing, and accurate measurement of surface roughness is the premise and foundation …
processing, and accurate measurement of surface roughness is the premise and foundation …
Lacunarity exponent and Moran index: A complementary methodology to analyze AFM images and its application to chitosan films
In this work, we developed new scripts to calculate the lacunarity exponent and Moran's
index of Atomic Force Microscopy (AFM) images. The lacunarity exponent was estimated by …
index of Atomic Force Microscopy (AFM) images. The lacunarity exponent was estimated by …
Surface roughness evaluation of electrical discharge machined surfaces using wavelet transform of speckle line images
The surfaces produced by electrical discharge machine (EDM) were illuminated using a
redline laser source and the speckle line images of the specimens were captured using a …
redline laser source and the speckle line images of the specimens were captured using a …
Comparison of correlation between 3D surface roughness and laser speckle pattern for experimental setup using he-ne as laser source and laser pointer as laser …
SB Jayabarathi, MM Ratnam - Sensors, 2022 - mdpi.com
Correlation between 3D surface roughness and characteristic features extracted from laser
speckle pattern was done using an inexpensive laser pointer and a digital single lens reflex …
speckle pattern was done using an inexpensive laser pointer and a digital single lens reflex …
[HTML][HTML] Investigation of copper and zinc alloy surface exposed to corrosion environment by digital image processing
PC da Silva, CFL Junior, JAO Huguenin… - Journal of Materials …, 2023 - Elsevier
Usually, corrosion processes on brass, which are manifested by discoloration of the metal or
alloy surface, are a little destructive and slow in natural environment or non-acid solutions. In …
alloy surface, are a little destructive and slow in natural environment or non-acid solutions. In …
[HTML][HTML] Machine learning classification of speckle patterns for roughness measurements
Abstract Classification based on Machine Learning (ML) algorithms has received particular
attention in many fields. By associating speckle patterns of depolarized light produced by …
attention in many fields. By associating speckle patterns of depolarized light produced by …
Correlation study of 3D surface roughness of milled surfaces with laser speckle pattern
SB Jayabarathi, MM Ratnam - Sensors, 2022 - mdpi.com
Current studies are focused on the correlation between characteristic features extracted from
the laser speckle pattern of machined surfaces and 2D surface roughness parameters …
the laser speckle pattern of machined surfaces and 2D surface roughness parameters …
A multiparameter surface roughness evaluation model of cold-rolled strips using laser speckle images
M Shao, D Xu, G Peng, S Li, J Zhang, X Wang, Q Yang - Measurement, 2022 - Elsevier
With the wide use of cold-rolled strips, the conventional contact measurement of strip surface
roughness cannot meet the requirements of nondestructiveness, high precision, short …
roughness cannot meet the requirements of nondestructiveness, high precision, short …
Evaluation of surface roughness of a machined metal surface based on laser speckle pattern
D Xu, Q Yang, F Dong… - The Journal of …, 2018 - Wiley Online Library
The surface roughness of a machined metal surface is crucial to its appearance and
performance. There are hardly any in‐situ methods for surface roughness measurement of …
performance. There are hardly any in‐situ methods for surface roughness measurement of …
Non-contact surface roughness measurement using laser speckle technique
This paper deals with selected contact type stylus method and non-contact type machine
vision method using laser speckle for components prepared by grinding of AISI 1040 steel …
vision method using laser speckle for components prepared by grinding of AISI 1040 steel …