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Publication . Article . Conference object . Other literature type . 2018

VARIANCE ANALYSIS AND COMPARISON IN COMPUTER-AIDED DESIGN

Torsten Ullrich; Thomas Schiffer; Christoph Schinko; Dieter W. Fellner;
Open Access
Published: 15 Jan 2018 Journal: The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, volume XXXVIII-5/W16, pages 149-153 (eissn: 2194-9034, Copyright policy )
Publisher: Copernicus GmbH
Country: Germany
Abstract
Abstract. The need to analyze and visualize differences of very similar objects arises in many research areas: mesh compression, scan alignment, nominal/actual value comparison, quality management, and surface reconstruction to name a few. In computer graphics, for example, differences of surfaces are used for analyzing mesh processing algorithms such as mesh compression. They are also used to validate reconstruction and fitting results of laser scanned surfaces. As laser scanning has become very important for the acquisition and preservation of artifacts, scanned representations are used for documentation as well as analysis of ancient objects. Detailed mesh comparisons can reveal smallest changes and damages. These analysis and documentation tasks are needed not only in the context of cultural heritage but also in engineering and manufacturing. Differences of surfaces are analyzed to check the quality of productions. Our contribution to this problem is a workflow, which compares a reference / nominal surface with an actual, laser-scanned data set. The reference surface is a procedural model whose accuracy and systematics describe the semantic properties of an object; whereas the laser-scanned object is a real-world data set without any additional semantic information.
Subjects by Vocabulary

Microsoft Academic Graph classification: Context (language use) Computer science Computer graphics (images) Data set Computer Aided Design computer.software_genre computer Object (computer science) Computer graphics Artificial intelligence business.industry business Laser scanning Visualization Surface reconstruction Computer vision

ACM Computing Classification System: ComputingMethodologies_COMPUTERGRAPHICS

Library of Congress Subject Headings: lcsh:Technology lcsh:T lcsh:Engineering (General). Civil engineering (General) lcsh:TA1-2040 lcsh:Applied optics. Photonics lcsh:TA1501-1820

Subjects

Computer Aided Design (CAD), cultural heritage, ray tracing, ray casting, reverse engineering, visualization, Forschungsgruppe Semantic Models, Immersive Systems (SMIS)

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Funded by
EC| 3D-COFORM
Project
3D-COFORM
Tools and Expertise for 3D Collection Formation
  • Funder: European Commission (EC)
  • Project Code: 231809
  • Funding stream: FP7 | SP1 | ICT
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