Yazar "Ulvi, A." seçeneğine göre listele

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    ANALYSIS OF THE UTILITY OF THE UNMANNED AERIAL VEHICLE(UAV) IN VOLUME CALCULATION BY USING PHOTOGRAMMETRIC TECHNIQUES
    (SELCUK UNIV PRESS, 2018) Ulvi, A.
    Together with developments in software technology, various interpolation methods allow terrain surfaces to be better identified. The accuracy rate in volume calculations is directly proportional with representation in the best form. The non-metric cameras, which are assembled to unmanned aerial vehicles (UAVs), provide convenience in the photogrammetric measurements. Sensitive images are obtained with less cost by the use of unmanned aerial vehicles. The purpose of this study was to take photos from the air with the help of UAVs and to make volume calculations by using photogrammetric techniques. At the end of the study, the photogrammetric method had been completed in a shorter period than with the traditional method. The values found as the result of both methods have been found to be compatible with each other in the ratio of 99.33% in terms of sensitivity.
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    INVESTIGATION OF THREE-DIMENSIONAL MODELLING AVAILABILITY TAKEN PHOTOGRAPH OF THE UNMANNED AERIAL VEHICLE; SAMPLE OF KANLIDIVANE CHURCH
    (SELCUK UNIV PRESS, 2016) Ulvi, A.; Toprak, A. S.
    Cultural heritages due to have different natural characteristics, have different sizes, and heir complicated structure should be measured and requires a more sophisticated measurement tools and techniques to documentation. One of them aerial photos taken by UAV pictures to use in architectural photogrammetry. In this study, Photogrammetric study was conducted in the ancient church next to the pothole. The study was completed with photographs taken from the air with UAV and close range photogrammetry. The images obtained from both methods adjusted in photogrammetric software and obtained a three-dimensional model of the church. Photography by UAV has proved to be a technical supporters of close range photogrammetry. Also coordinates of the reference points on the images obtained through photogrammetric software and compared with terrain coordinates. Point position accuracy of points mxyz = 2.1 cm were found. In order to protect the world heritage of cultural heritage IHA help to be sensitive enough to measure derived from aerial photographs taken, can be used as a base to work from different professional disciplines, The UAV was concluded in anywhere near the height can be used for photogrammetric.
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    Photogrammetric Measurement of the Meke Lake and Its Environment with Kite Photographs to Monitoring of Water Level to Climate Change
    (Copernicus Gesellschaft Mbh, 2010) Yakar, M.; Yıldız, F.; Metin, A.; Uray, F.; Ulvi, A.; Karasaka, L.; Mutluoğlu, O.; Şeker, D. Z.
    Over the last hundred years or so, the instrumental temperature record has shown a trend in climate of increased global mean temperature, i.e., global warming. Global warming and climate change have caused a decrease in lake waters, an increase in the sea level, and changes in streams and precipitation models and have started to show negative impacts on all aquatic organisms from plankton to mammals. Semi-arid and arid areas are particularly exposed to the impacts of climate change on freshwater. Unfortunately, due to global warming and the uncontrolled irrigation of farms, the "eye" of the lake has dried and rest of the lake is drying. This project has been started to get data about decreasing the water level and the physical changes in the Lake Meke. From September to March, the level of water has been determined. For this purpose, photogrammetric measurements have been done. Kite and remote-control camera has been used. With calibrated cameras and points on ground, the lake's surface has been evaluation photogrammetric software and got merged with present time map.