A feature extraction method for the assessment of the form parameters of surfaces with localised erosion
A feature extraction method for the assessment of the form parameters of surfaces with localised erosion
An algorithm, referred to as the Defect Removal Method (DRM), is proposed for evaluating the form parameters of surfaces with defects, using three-dimensional (3-D) measurement data. The algorithm excludes data from heavily damaged areas of a surface prior to form fitting using a weighted least squares fit. The nature of the weighting function is varied on the basis of the statistical characteristics of the residuals after form removal. This paper describes the Defect Removal Method and tests it using a range of simulated data sets and a set of measured eroded electrical contact data to look at the improvement on the evaluation of the form parameters of the surface with defects.
form parameters, measurement residual, defect, weighted least squares fitting
243-251
McBride, J.W.
d9429c29-9361-4747-9ba3-376297cb8770
Hill, M.
0cda65c8-a70f-476f-b126-d2c4460a253e
Zhang, D.
1c04f0f4-c07c-4671-8fd0-fa07a685fea2
February 2004
McBride, J.W.
d9429c29-9361-4747-9ba3-376297cb8770
Hill, M.
0cda65c8-a70f-476f-b126-d2c4460a253e
Zhang, D.
1c04f0f4-c07c-4671-8fd0-fa07a685fea2
McBride, J.W., Hill, M. and Zhang, D.
(2004)
A feature extraction method for the assessment of the form parameters of surfaces with localised erosion.
Wear, 256 (3-4), .
(doi:10.1016/S0043-1648(03)00411-3).
Abstract
An algorithm, referred to as the Defect Removal Method (DRM), is proposed for evaluating the form parameters of surfaces with defects, using three-dimensional (3-D) measurement data. The algorithm excludes data from heavily damaged areas of a surface prior to form fitting using a weighted least squares fit. The nature of the weighting function is varied on the basis of the statistical characteristics of the residuals after form removal. This paper describes the Defect Removal Method and tests it using a range of simulated data sets and a set of measured eroded electrical contact data to look at the improvement on the evaluation of the form parameters of the surface with defects.
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Published date: February 2004
Keywords:
form parameters, measurement residual, defect, weighted least squares fitting
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Local EPrints ID: 11245
URI: http://eprints.soton.ac.uk/id/eprint/11245
ISSN: 0043-1648
PURE UUID: b4f65ecc-bd76-428a-bb10-5835f4b472b4
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Date deposited: 05 Nov 2004
Last modified: 16 Mar 2024 02:40
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Author:
D. Zhang
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