Pre-processing of point-data from contact and optical 3D digitization sensors
Budak, Igor (Author), Vukelić, Djordje (Author), Bračun, Drago (Author), Hodolič, Janko (Author), Soković, Mirko (Author)

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Contemporary 3D digitization systems employed by reverse engineering (RE) feature ever-growing scanning speeds with the ability to generate large quantity of points in a unit of time. Although advantageous for the quality and efficiency of RE modelling, the huge number of point datas can turn into a serious practical problem, later on, when the CAD model is generated. In addition, 3D digitization processes are very often plagued by measuring errors, which can be attributed to the very nature of measuring systems, various characteristics of the digitized objects and subjective errors by the operator, which also contribute to problems in the CAD model generation process. This paper presents an integral system for the pre-processing of point data, i.e., filtering, smoothing and reduction, based on a cross-sectional RE approach. In the course of the proposed system development, major emphasis was placed on the module for point data reduction, which was designed according to a novel approach with integrated deviation analysis and fuzzy logic reasoning. The developed system was verified through its application on three case studies, on point data from objects of versatile geometries obtained by contact and laser 3D digitization systems. The obtained results demonstrate the effectiveness of the system.

Keywords:reverse engineering, 3D digitization, point data pre-processing, optical triangulation sensors, fuzzy logic, contact sensor
Work type:Article (dk_c)
Tipology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Number of pages:Str. 1100-1126
Numbering:Vol. 12, iss. 1
ISSN on article:1424-8220
DOI:10.3390/s120101100 This link opens in a new window
COBISS.SI-ID:12177691 This link opens in a new window
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Record is a part of a journal

Shortened title:Sensors
COBISS.SI-ID:10176278 This link opens in a new window

Document is financed by a project

Funder:MESTD - Ministry of Education, Science and Technological Development of Republic of Serbia

Funder:Drugi - Drug financer ali več financerjev
Funding Programme:Ministry of Higher Education, Science and Technology of Republic of Slovenia


License:CC BY 3.0, Creative Commons Attribution 3.0 Unported
Description:You are free to reproduce and redistribute the material in any medium or format. You are free to remix, transform, and build upon the material for any purpose, even commercially. You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Licensing start date:20.01.2012

Secondary language

Keywords:vzvratno inženirstvo, 3D digitalizacija, optični triangulacijski senzorji, redukcija podatkov, mehka logika

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