Developing a flexible range sensing system for industrial inspection applications
dc.contributor.author | Hou, Yoshen | en |
dc.contributor.committeechair | Conners, Richard W. | en |
dc.contributor.committeecochair | Kline, D. Earl | en |
dc.contributor.committeemember | Abbott, A. Lynn | en |
dc.contributor.committeemember | Schmoldt, Daniel L. | en |
dc.contributor.department | Electrical Engineering | en |
dc.date.accessioned | 2014-03-14T21:39:56Z | en |
dc.date.adate | 2009-07-10 | en |
dc.date.available | 2014-03-14T21:39:56Z | en |
dc.date.issued | 1993-06-15 | en |
dc.date.rdate | 2009-07-10 | en |
dc.date.sdate | 2009-07-10 | en |
dc.description.abstract | This thesis describes the development of a range sensing system. The goal was to create a range sensor that is robust and flexible so that a number of applications within the forest products manufacturing environment can be addressed. Features of the system include: the capability of producing spatially registered image pairs of range and intensity, the ability to generate both range and intensity very quickly, the applicability to a wide variety of industrial applications, the ability to handle large depth-of-field range sensing problems, the ability to do real-time data processing, and the capability to do extensive system diagnostics under complete software control. A triangulation based plane-of-light optical method is employed to extract range information. The research shows that this method suits range sensing applications where conveyor belts are involved. An in-depth study of the triangulation method is included. In the study it shows that this method also supports large depth-of-field range sensing. A dedicated signal processing hardware, built on the Micro Channel interface, performs pipelined image processing and generates range and intensity images in a spatially registered form. The hardware is designed to support several modes of operation, for the purpose of facilitating optical adjustments and calibrations. The hardware self-diagnostic facility is also included in the design. A memory management scheme is provided that facilitates real-time data processing of the range and intensity images. The experiments show that this scheme provides a real-time environment for software processing. This thesis also contains a theory exploring the limitations of the measurement accuracy of the range detection algorithm employed in the prototype system. The maximum data generation rate of the prototype system is 380 range/intensity lines per second at 128 range/intensity pixels per line. Several proposals toward future work are included that aim at improving the speed as well as the measurement accuracy of the prototype system. | en |
dc.description.degree | Master of Science | en |
dc.format.extent | xii, 190 leaves | en |
dc.format.medium | BTD | en |
dc.format.mimetype | application/pdf | en |
dc.identifier.other | etd-07102009-040351 | en |
dc.identifier.sourceurl | http://scholar.lib.vt.edu/theses/available/etd-07102009-040351/ | en |
dc.identifier.uri | http://hdl.handle.net/10919/43623 | en |
dc.language.iso | en | en |
dc.publisher | Virginia Tech | en |
dc.relation.haspart | LD5655.V855_1993.H68.pdf | en |
dc.relation.isformatof | OCLC# 36114196 | en |
dc.rights | In Copyright | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
dc.subject | range sensing systems | en |
dc.subject.lcc | LD5655.V855 1993.H68 | en |
dc.title | Developing a flexible range sensing system for industrial inspection applications | en |
dc.type | Thesis | en |
dc.type.dcmitype | Text | en |
thesis.degree.discipline | Electrical Engineering | en |
thesis.degree.grantor | Virginia Polytechnic Institute and State University | en |
thesis.degree.level | masters | en |
thesis.degree.name | Master of Science | en |
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