Improving the accuracy of the orientation parameters in surface fitting by boundary sampling strategy

Author

Jinglei Wang

Keywords and Phrases

Sampling strategy; Surface fitting; Localization; Sampling point distribution

Abstract

“In addition to conventional applications such as reverse engineering and product inspection, surface fitting techniques have been applied to metal part repair processes and work piece localization processes. In these new applications, the orientation and position information of the work piece are extracted from point clouds. In order to improve the accuracy of the fitted orientation parameters, sampling boundary effects, which are an innovative approach, are studied in this paper. A boundary sampling strategy is proposed and compared to grid sampling strategy, Hammersley Sequence sampling strategy, and random sampling strategy. The results showed that the boundary sampling strategy is accurate at estimating the orientation parameters in the surface fitting processes in which the linear least squares method is employed. It also provides a short digitizing path, thus, reduce motion of CMM and shorten the operation time. This method can be easily adopted in industry--Abstract, page iv.

Advisor(s)

Liou, Frank W.

Committee Member(s)

Landers, Robert G.
Hilgers, Michael Gene

Department(s)

Mechanical and Aerospace Engineering

Degree Name

M.S. in Mechanical Engineering

Publisher

University of Missouri--Rolla

Publication Date

Spring 2004

Pagination

viii, 53 pages

Note about bibliography

Includes bibliographical references (pages 33-34).

Rights

© 2004 Jinglei Wang, All rights reserved.

Document Type

Thesis - Restricted Access

File Type

text

Language

English

Subject Headings

Boundary layer

Thesis Number

T 8440

Print OCLC #

56409160

Link to Catalog Record

Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.

Recommended Citation

Wang, Jinglei, "Improving the accuracy of the orientation parameters in surface fitting by boundary sampling strategy" (2004). Masters Theses. 2476.
https://scholarsmine.mst.edu/masters_theses/2476