All Articles

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


Extracting Accurate Measurements from Single Surveillance Camera Images
06/15/2017 | Eugene Liscio
Applications: All and Forensics & Accident Recon.

PhotoModeler can solve important information about the single camera and the scene at the time of the crime, by using the image captured at the time of the crime, and combining that with 3D data captured after the crime.

In this paper a detailed method is described using PhotoModeler to ‘marry’ the detail of a 3D laser scan with one still from a security camera, and then exported to 3D Studio Max for further analysis.

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Survey of Ely Bridge, Monticello, Iowa
12/19/2016 | Harold Schuch, PE
Applications: All, Engineering & Science, and Surveying

The purpose of this project was to assess the feasibility to restore the Ely Bridge in Monticello, Iowa, a structure listed in the National Register of Historic Places. The author was invited by the Department of Civil Engineering of the University of Colorado, Denver, to create a three-dimensional scaled wire frame of the bridge to be used in a finite-element stress analysis. This report describes the effort of creating this digital three-dimensional wire frame, using photogrammetric tools. This

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UAS + Photogrammetry Reduces Cost and Risk of Surveys
07/01/2016 | Jerry Fireman
sUAS Guide
Applications: All, Geology & Mining, Magazine Articles, Surveying, and UAS / UAV / Drone

This article describes the use of UAS by two PhotoModeler customers in civil engineering and geology work. One customer specializes in rock slope surveys, and the other in environmental monitoring and remediation. They both found that using UAS and PhotoModeler greatly reduced their costs and reduced risk.  See p. 54 in full online magazine.

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Photogrammetry Helps Surveyors Save Time and Improve Accuracy
02/04/2016 | Jerry Fireman
American Surveyor
Applications: All, Magazine Articles, Surveying, and UAS / UAV / Drone

“Surveying is a time and labor intensive process that requires extremely high levels of accuracy. Two North American surveyors are addressing this challenge by using photogrammetry to increase the number of points surveyed by several orders of magnitude while reducing field time by half or more. Photogrammetry is the process of generating measurements and models from photograph…”

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Full-scale flying shape measurement of offwind sails with photogrammetry
11/05/2015 | Julien Deparday, Patrick Bot, Frederic Hauville, Benoit Augier - Naval Academy Research Institute - BREST, France; Marc Rabaud - Laboratoire FAST, Univ. Paris-Sud, France
submitted to Ocean Engineering
Applications: All, Engineering & Science, and Industrial Measurement

“At full-scale, measuring the spinnaker shape in real sailing conditions (flying shape) is also valuable for sail designers as they would benefit a feedback for their designs. Nonetheless it remains complex to measure spinnaker flying shapes partly because of their inherent instability, like flapping of the luff. This work presents a full-scale experimental investigation of spinnaker flying shapes with simultaneous measurement of the aerodynamic loads on the three sail corners, as well as navigation and wind data. The developed experimental set-up and photogrammetric method to acquire the flying shape of the spinnaker are presented”

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THREE DIMENSIONAL MODELING OF ARCHAEOLOGICAL ARTIFACT USING PHOTOMODELER SCANNER
08/23/2015 | Ainun Nadzirah Abdul Raof, Halim Setan, Abert Chong, Zulkepli Majid
Journal Teknologi
Applications: All and Archaeology

This article describes the work of archaeological artifact data recording using close range photogrammetry method. A calibrated stereo camera was used to take the stereo images of the artifacts. PhotoModeler Scanner software was used to produce a three-dimensional model of the artifact. For verification purposes, VIVID 910 laser scanner was used to generate three-dimensional model of the same artifact. The study found that close range photogrammetry method is easy to use, with fast data recording, fast data processing and it is a method which is cheaper than the laser scanning method.

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The Use of the Terrestrial Photogrammetry in Reverse Engineering Applications
04/01/2015 | Naci Yastikli, Zehra Erisir, Pelin Altintas, and Tugba Cak - Yıldız Technical University, Istanbul, Turkey
International Journal of 3-D Information Modeling
Applications: All, Engineering & Science, and Industrial Measurement

“The reverse engineering applications has gained great momentum in industrial production with developments in the fields of computer vision and computer-aided design. The reproduction of an existing product or a spare part, reproduction of an existing surface, elimination of the defect or improvement of the available product are the goals of industrial reverse engineering applications. The first and the most important step in reverse engineering applications is the generation of the three dimensional (3D) metric model of an existing product in computer environment. The possible usage of terrestrial photogrammetry in reverse engineering application is investigated based on low cost photogrammetric system. The main aim was the generation of the dense point cloud and 3D line drawing of the ship model by using terrestrial photogrammetry. Then 3D line drawing operations, point cloud and orthoimage generations have been accomplished by using PhotoModeler software. As a result of the proposed terrestrial photogrammetric steps, 0.5 mm spaced dense point cloud and orthoimage have been generated.”

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PHOTO REALISTIC 3D MODELING WITH UAV: GEDİK AHMET PASHA
09/02/2013 | M.Uysal,, A.S.Toprak, N.Polat, Afyon Kocatepe Üniversitesi
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XL-5/W2, 2013
Applications: All, Architecture, and UAS / UAV / Drone

“Many of the cultural heritages in the world have been totally or partly destroyed by natural events and human activities such as earthquake, flood and fire until the present day. Cultural heritages are legacy for us as well; it is also a fiduciary for next generation. To deliver this fiduciary to the future generations, cultural heritages have to be protected and registered. There are different methods for applying this registry but Photogrammetry is the most accurate and rapid method. Photogrammetry enables us to registry cultural heritages and generating 3D photo-realistic models. “

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Photogrammetric Documentation of Regions of Interest at Autopsy – A Pilot Study
08/03/2013 | Liselott Slot, Peter K. Larsen, Niels Lynnerup
J Forensic Sci, 2013, doi: 10.1111/1556-4029.12289
Applications: All, Biology, and Forensics & Accident Recon.

In this pilot study, the authors tested whether photogrammetry can replace or supplement physical measurements made during autopsies and, based on such measurements, whether virtual computer models may be applicable in forensic reconstructions.

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A New Capability for Crash Site Documentation
2013 | Major Adam Cybanski, Directorate of Flight Safety, Ottawa
International Society of Air Safety Investigations Conference
Applications: All and Forensics & Accident Recon.

The author discusses the use of photogrammetry in aircraft accident scene documentation. Major Adam Cybanski is the officer responsible
for helicopter investigation at the Canadian Forces Directorate of Flight Safety in Ottawa, Canada. He is a tactical helicopter pilot with over 20 years and 2500 hours on fixed and rotary wing aircraft.

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