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

Kód výsledku v 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>

Výsledek na webu

<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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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

IN - Informatika

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Interdisciplinarity in Theory and Practice

ISSN

2344-2409

e-ISSN

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Svazek periodika

3

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

RO - Rumunsko

Počet stran výsledku

5

Strana od-do

227-231

Kód UT WoS článku

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EID výsledku v databázi Scopus

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