DETERMINING SURFACE ROUGHNESS

Determining Surface Roughness A measurement system (301) for determining surface roughness is shown. A coherent illumination device (303) illuminates the surface of, for example, a component (201) with coherent light. An imaging device (304) 5 obtains an image of speckle caused by the scattering of...

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Hauptverfasser:	VADAKKE MATHAM, MURUKESHAN, HARIDAS, Aswin, CRIVOI, Alexandru, PATINHAREKANDY, Prabhathan
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING IMAGE DATA PROCESSING OR GENERATION, IN GENERAL MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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creator	VADAKKE MATHAM, MURUKESHAN HARIDAS, Aswin CRIVOI, Alexandru PATINHAREKANDY, Prabhathan
description	Determining Surface Roughness A measurement system (301) for determining surface roughness is shown. A coherent illumination device (303) illuminates the surface of, for example, a component (201) with coherent light. An imaging device (304) 5 obtains an image of speckle caused by the scattering of the coherent light from the surface. A processing device (305) converts the image into a binary image according to a threshold, thereby classifying pixels below the threshold as background pixels and pixels above the threshold as foreground pixels. It then evaluates the fractal dimension of the binary image. The fractal dimension 10 correlates with surface roughness. An indication of the surface roughness of the surface is then outputted. [Figure 3]
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subjects	CALCULATING COMPUTING COUNTING IMAGE DATA PROCESSING OR GENERATION, IN GENERAL MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
title	DETERMINING SURFACE ROUGHNESS
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