USE OF CLOSE RANGE PHOTOGRAMMETRY AND IBM TECHNOLOGY FOR BUILDINGS PARTS DEFORMATION MODELING

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00242759" target="_blank" >RIV/68407700:21110/15:00242759 - isvavai.cz</a>

Result on the web

<a href="http://www.itpb.eu/index.php/ct-menu-item-3/14-engineering/186-7-cislo-41-clanok" target="_blank" >http://www.itpb.eu/index.php/ct-menu-item-3/14-engineering/186-7-cislo-41-clanok</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

USE OF CLOSE RANGE PHOTOGRAMMETRY AND IBM TECHNOLOGY FOR BUILDINGS PARTS DEFORMATION MODELING

Original language description

This paper presents an application of photogrammetrical methods for measuring the deformation of structural elements at sequential loading. Several load conditions were documented using correlation techniques and intersection photogrammetry. The Laboratory of Photogrammetry, CTU in Prague, did the measuring. Two types of material were tested: timber beams (linear part) and concrete beams. The progress of deformation was measured with a non-contact photogrammetrical method with the use of the image correlation technique (image based modeling – IBM). In this first experiment, a calibrated digital middle format camera Pentax was used for taking of photos. Agisoft Photoscan software was used for the deformation documentation. In the second experiment, three calibrated digital high resolution (10-15 MPix) Canon cameras were used (Canon Mark II5D and Canon 450). The cameras were installed about 2 m from the measured object with the camera base approx. 3 m away. A computer controlled both cameras remotely and the images were saved to the hard drive in raw format. The images that were taken were synchronized in several intervals. The measured object was lit with two 300W lamps. On the object, cca 50 measured points were monitored for dynamical deformation. Photomodeler software was used in this case. As comparative models, measurements by the precise laser scanner Surphaser were done such as the direct measurement of deformations by potentiometers. The outputs shown, which all used non-traditional technology, are good enough for deformation measurement in sub-mm range.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

IN - Informatics

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Interdisciplinarity in Theory and Practice

ISSN

2344-2409

e-ISSN

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Volume of the periodical

3

Issue of the periodical within the volume

7

Country of publishing house

RO - ROMANIA

Number of pages

5

Pages from-to

227-231

UT code for WoS article

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EID of the result in the Scopus database

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