An autonomous and self-locating handling device for reverse engineering systems

2019 ◽  
Author(s):  
Ferdinando Vitolo ◽  
Stanislao Patalano ◽  
Andrea Rega ◽  
Antonio Lanzotti
Keyword(s):  
Reverse Engineering ◽  
Engineering Systems ◽  
Handling Device

Finding Approximate Shape Regularities for Reverse Engineering

2001 ◽  
Vol 1 (4) ◽  
pp. 282-290 ◽  
Author(s):  
F. C. Langbein ◽  
B. I. Mills ◽  
A. D. Marshall ◽  
R. R. Martin
Keyword(s):  
Reverse Engineering ◽  
Small Groups ◽  
Input Data ◽  
Boundary Representation ◽  
Range Data ◽  
Engineering Systems ◽  
Post Processing ◽  
Processing Step ◽  
3D Range Data

Current reverse engineering systems can generate boundary representation (B-rep) models from 3D range data. Such models suffer from inaccuracies caused by noise in the input data and algorithms. The quality of reverse engineered geometric models can be improved by finding candidate shape regularities in such a model, and constraining the model to meet a suitable subset of them, in a post-processing step called beautification. This paper discusses algorithms to detect such approximate regularities in terms of similarities between feature objects describing properties of faces, edges and vertices, and small groups of these elements in a B-rep model with only planar, spherical, cylindrical, conical and toroidal faces. For each group of similar feature objects they also seek special feature objects which may represent the group, e.g. an integer value which approximates the radius of similar cylinders. Experiments show that the regularities found by the algorithms include the desired regularities as well as spurious regularities, which can be limited by an appropriate choice of tolerances.

PROGRAMMABLE REVERSE ENGINEERING

1994 ◽  
Vol 04 (04) ◽  
pp. 501-520 ◽  
Author(s):  
SCOTT R. TILLEY ◽  
KENNY WONG ◽  
MARGARET-ANNE D. STOREY ◽  
HAUSI A. MÜLLER
Keyword(s):  
Reverse Engineering ◽  
Cognitive Abilities ◽  
Graph Layout ◽  
Engineering Systems ◽  
Program Understanding ◽  
As Graph ◽  
Scripting Language ◽  
Specific Cognitive Abilities

Program understanding can be enhanced using reverse engineering technologies. The understanding process is heavily dependent on both individuals and their specific cognitive abilities, and on the set of facilities provided by the program understanding environment. Unfortunately, most reverse engineering tools provide a fixed palette of extraction, selection, and organization techniques. This paper describes a programmable approach to reverse engineering. The approach uses a scripting language that enables users to write their own routines for common reverse engineering activities, such as graph layout, metrics, and subsystem decomposition, thereby extending the capabilities of the reverse engineering toolset to better suit their needs. A programmable environment supported by this approach subsumes existing reverse engineering systems by being able to simulate facets of each one.

scholarly journals LASER AND MULTI-IMAGE REVERSE ENGINEERING SYSTEMS FOR ACCURATE 3D MODELLING OF COMPLEX CULTURAL ARTEFACTS

2019 ◽  
Vol XLII-2/W11 ◽  
pp. 623-629 ◽  
Author(s):  
C. Ioannidis ◽  
G. Piniotis ◽  
S. Soile ◽  
F. Bourexis ◽  
A.-M. Boutsi ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Reverse Engineering ◽  
Data Acquisition ◽  
Laser Scanning ◽  
Digital Data ◽  
Acquisition Time ◽  
Engineering Systems ◽  
Model Quality ◽  
Laser Tracking ◽  
Cultural Artefact

<p><strong>Abstract.</strong> The recent scientific and technical developments of reverse engineering methods and tools have broadened the possibilities of applications in the field of cultural heritage conservation. In this paper, two different non-contact reverse engineering systems were utilized for 3D data acquisition of a cultural heritage artefact. The object of interest is a 17th century wooden engraved ecclesiastical sanctuary ciborium. The requirement of the 3D model is to aid the art conservators for the preservation of the wooden material and the restoration of small damages and cracks in the engraved parts, thus requiring accuracy of the model in the order of sub-millimetre. In this work, a Faro Vantage laser tracker was employed along with the FARO Edge Arm. In addition, image-based modelling was also implemented with a large number of overlapping images acquired with a Canon EOS 6D camera and processed using the well-known Structure from Motion (SfM) method with an auto-calibration procedure. The digital data acquisition and processing procedures of the scanned geometry are described and compared to evaluate the performance of both systems in terms of data acquisition time, processing time, reconstruction precision and final model quality. Whilst models produced with laser scanning and image-based techniques is not a novel approach, the combination of laser tracking and photogrammetric data still presents limited documentation in the field of cultural artefact documentation mainly due to the extremely high cost of the laser tracking systems.</p>

scholarly journals A sensor data fusion-based locating method for large-scale metrology

ACTA IMEKO ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 136
Author(s):  
Andrea Rega ◽  
Ferdinando Vitolo ◽  
Stanislao Patalano ◽  
Salvatore Gerbino
Keyword(s):  
Data Fusion ◽  
Reverse Engineering ◽  
Large Scale ◽  
Low Cost ◽  
Point Clouds ◽  
Sensor Data ◽  
Sensor Data Fusion ◽  
3D Cad ◽  
Handling Device ◽  
Scanning Systems

<p class="Abstract">The measurement of geometric and dimensional variations in the context of large-sized products is a complex operation. One of the most efficient ways to identify deviations is by comparing the nominal object with a digitalisation of the real object through a reverse engineering process. The accurate digitalisation of large geometric models usually requires multiple acquisitions from different acquiring locations; the acquired point clouds must then be correctly aligned in the 3D digital environment. The identification of the exact scanning location is crucial to correctly realign point clouds and generate an accurate 3D CAD model.</p>To achieve this, an acquisition method based on the use of a handling device is proposed that enhances reverse engineering scanning systems and is able to self-locate. The present paper tackles the device’s locating problem by using sensor data fusion based on a Kalman filter. The method was first simulated in a MatLAB environment; a prototype was then designed and developed using low-cost hardware. Tests on the sensor data fusion have shown a locating accuracy better than that of each individual sensor. Despite the low-cost hardware, the results are encouraging and open to future improvements

scholarly journals Reverse engineering systems models of regulation: discovery, prediction and mechanisms

2012 ◽  
Vol 23 (4) ◽  
pp. 598-603 ◽  
Author(s):  
Justin Ashworth ◽  
Elisabeth J Wurtmann ◽  
Nitin S Baliga
Keyword(s):  
Reverse Engineering ◽  
Engineering Systems ◽  
Systems Models

Systematic Reverse Engineering of Biological Systems

2007 ◽  
Author(s):  
Jamal O. Wilson ◽  
David Rosen
Keyword(s):  
Reverse Engineering ◽  
Biological Systems ◽  
Variable Stiffness ◽  
Design Principles ◽  
Efficient Solutions ◽  
Engineering Systems ◽  
Biological Design ◽  
Engineering Problems ◽  
Airplane Wing ◽  
Current Engineering

The duality between biological systems and engineering systems exists in the pursuit of economical and efficient solutions. By adapting biological design principles, nature’s technology can be harnessed. In this paper, we present a systematic method for reverse engineering biological systems to assist the designer in searching for solutions in nature to current engineering problems. Specifically, we present methods for decomposing the physical and functional biological architectures, representing dynamic functions, and abstracting biological design principles to guide conceptual design. We illustrate this method with an example of the design of a variable stiffness skin for a morphable airplane wing based on the mutable connective tissue of the sea cucumber.

scholarly journals Implementation of AHP Methodology for the Evaluation and Selection Process of a Reverse Engineering Scanning System

2021 ◽  
Vol 11 (24) ◽  
pp. 12050
Author(s):  
Juraj Beniak ◽  
Ľubomír Šooš ◽  
Peter Križan ◽  
Miloš Matúš
Keyword(s):  
Reverse Engineering ◽  
Selection Process ◽  
Evaluation Criteria ◽  
Pairwise Comparison ◽  
Scanning System ◽  
Engineering System ◽  
Engineering Systems ◽  
Historical Objects ◽  
The Individual ◽  
Selection Of

Generally speaking, the proper selection of a suitable system for various uses is key to its full use in practice. In all areas, there is a large number of technologies, equipment, and systems to choose from, so it is necessary to determine the individual parameters and their weight, which are important for selection. In the field of reverse engineering, several technological devices are particularly expensive, and the selection of one will influence the long-term functioning of the system. Reverse engineering systems are widely used for the registration and documentation of historical objects in the sense of cultural heritage, and the presented scanning systems are suitable for this purpose. In this case, the selection of a scanning system is discussed. This paper deals with the methodology of selecting the most suitable reverse engineering system by the method of pairwise comparison of expert evaluation criteria (analytical hierarchical process (AHP)). This paper contains a comparison of several systems and the selection of the most suitable solution for the particular company.

Network reconstruction based on steady-state data

2008 ◽  
Vol 45 ◽  
pp. 161-176 ◽  
Author(s):  
Eduardo D. Sontag
Keyword(s):  
Steady State ◽  
Reverse Engineering ◽  
Theoretical Method ◽  
Network Reconstruction ◽  
Quasi Steady State ◽  
State Data

This paper discusses a theoretical method for the “reverse engineering” of networks based solely on steady-state (and quasi-steady-state) data.

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