All Articles

77 articles listed in reverse chronological order. View articles by field type using links on the right.



Low Cost Solutions for Dense Point Clouds of Small Objects: PhotoModeler Scanner Vs. DAVID Laserscanner
10/11/2009 | E. Alby, E. Smigiel, P.Assali,P.Grussenmeyer, I.Kauffmann-Smigiel; Photogrammetry and Geomatics Group INSA Strasbourg; Etude des Civilisations de l'Antiquité, CNRS - Université de Strasbourg, France
22nd CIPA Symposium, October 11-15, 2009, Kyoto, Japan
Applications: All and Archaeology

The study of archaeological artifacts requires a great care for the object. Current technologies allow the study of the object scanned in three dimensions. Hence, the digitization of objects has almost become compulsory for simplicity of study and analysis. Hence a low cost solution susceptible of being operated with reasonable effort could contribute to popularize 3D acquisition tools. In our study, we focus particularly on two solutions: David Laserscanner and PhotoModeler Scanner. Both systems come from two different techniques: laser scanning and photogrammetry.

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Photogrammetry and Dense Stereo Matching Approach Applied to the Documentation of the Cultural Heritage Site of Kilwa (Saudi Arabia)
10/11/2009 | J. F. Hullo, P. Grussenmeyer, S. Fares; Photogrammetry and Geomatics Group, INSA Strasbourg; HiSCANT Group, University of Nancy, France
22nd CIPA Symposium, October 11-15, 2009, Kyoto, Japan
Applications: All and Archaeology

Since a couple of years, several commercial solutions of dense stereo matching have been developed. This process offers a really cheap, flexible and accurate solution to get 3D point clouds and textured models. The calibration of the camera allows a subpixellar correlation for correctly textured objects. In order to define the limits of such a process for cultural heritage applications, the Photomodeler Scanner software has been tested on an archaeological site.

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Metric Potential of a 3D Measurement System Based on Digital Compact Cameras
06/03/2009 | Enoc Sanz-Ablanedo, José Ramón Rodríguez-Pérez, Pedro Arias-Sánchez and Julia Armesto; Geomatics Engineering Research Group, University of León, and Department of Natural Resources and Environmental Engineering, University of Vigo
Applications: Accuracy, All, and Industrial Measurement

What is unique in this study is that accuracy was assessed on a system with four independent cameras and all those cameras were consumer-grade cameras with zoom lenses. This is a configuration one might use for a low-cost PMV system (for tracking object movement and shape change over time).

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Photogrammetric Investigation of the Flying Shape of Spinnakers in a Twisted Flow Wind Tunnel
03/01/2009 | Kai Graf, University of Applied Sciences Kiel (UAS), Germany, and Olaf Müller, LM Glasfiber A/S, Dept. R&D Aerodynamics Team, Denmark
The 19th Chesapeake Sailing Yacht Symposium Annapolis, Maryland
Applications: All and Industrial Measurement

This paper describes a method for the acquisition of the flying shape of spinnakers in a twisted flow wind tunnel. The method is based on photogrammetry. Results are shown comparing design versus flying shape of the spinnaker and the impact of wind velocity and wind twist on the flying shape.

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Software Turns Photos into Scans, 3D Models
02/25/2009 | Editors
Desktop Engineering Magazine
Applications: All and Magazine Articles

“Eos Systems (Vancouver, BC, Canada) has released version 6.3 of PhotoModeler, its image-based modeling photogrammetry — software for generating and measuring 3D models from photographs. Key enhancements, according to the company, include expanded automation and RAD Targets that help you obtain 3D measurements and 3D point sets accurately and efficiently. The new version is said to let you capture and measure a wider variety of scenes and objects and, of interest to existing users, it provides improved speed and lower costs of operation.”

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How to weigh an elephant seal with one finger: a simple three-dimensional photogrammetric application
02/03/2009 | P. J. Nico de Bruyn, Marthán N. Bester, Alejandro R. Carlini, W. Chris Oosthuizen; Mammal Research Institute, Department of Zoology and Entomology, University of Pretoria; Departamento de Ciencias Biológicas, Instituto Antárctico Argentino
Applications: All and Biology

Several studies have developed photogrammetric techniques for indirect mass estimation of seals. Unfortunately, these techniques are often narrowly delineated for specific field scenarios or species. Many require sophisticated, custom-designed equipment or analytical tools, limiting their applicability. We aimed to devise a photogrammetric technique for accurate volume mass estimation of seals under a variety of field scenarios without manipulation of the animal and with minimal equipment.

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Animation of Experimentally Derived Structural Resonances
01/15/2009 | Shawn Richardson and Mark Richardson, Vibrant Technology, Inc., Scotts Valley, CA
Applications: All, Engineering & Science, and Industrial Measurement

The vibration response of a model airplane is animated as the result of real-world experimental study of modes. The structural data is captured in 3D by PhotoModeler.

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Using Photo Modeling to Obtain the Modes of a Structure
11/01/2008 | Shawn Richardson and Mark Richardson, Vibrant Technology, Inc., Scotts Valley, CA
Sounds & Vibration
Applications: All, Engineering & Science, and Industrial Measurement

Photo modeling technology has progressed to the point where a dimensionally accurate 3D model can be economically constructed from a series of digital photographs of a structure. We show in this article how a photo model of a structure can be used to create an FEA model from which the modes of the structure can be calculated. The FEA mode shapes obtained from the photo models are then compared with the experimentally derived mode shapes of each structure to demonstrate the validity of this approach to FEA modeling.

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PhotoModeler Scanner in VFX
10/01/2008 | Steve Chapman, Gentle Giant Studios
Eos Systems Newsletter
Applications: All and Film & Animation

The author discusses the potential for PhotoModeler Scanner in VFX and contrasts it with their laser scanner experience.

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Police Take Accident Reconstruction To Skies
01/03/2008 | The Boston Channel
WCVB TV Boston
Applications: All and Forensics & Accident Recon.

“The Massachusetts State Police are using new technology to get traffic moving sooner after a crash. …” (article link is a cached version of the external site which is no longer active unfortunately (and it had a great video)).

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