AN EMPRICAL POINT ERROR MODEL FOR TLS DERIVED POINT CLOUDS

Ozendi, Mustafa | Akca, Devrim | Topan, Huseyin

The random error pattern of point clouds has significant effect on the quality of final 3D model. The magnitude and distribution of random errors should be modelled numerically. This work aims at developing such an anisotropic point error model, specifically for the terrestrial laser scanner (TLS) acquired 3D point clouds. A priori precisions of basic TLS observations, which are the range, horizontal angle and vertical angle, are determined by predefined and practical measurement configurations, performed at real-world test environments. A priori precision of horizontal (sigma(theta)) and vert ...Daha fazlası

Konferans Nesnesi 2016 XXIII ISPRS Congress, Commission V41 ( B5 ) , pp. 5 - 563 824 Görüntülenme

GEOMETRIC AND RADIOMETRIC EVALUATION OF RASAT IMAGES

Cam, Ali | Topan, Huseyin | Oruc, Murat | Ozendi, Mustafa | Bayik, Caglar

RASAT, the second remote sensing satellite of Turkey, was designed and assembled, and also is being operated by TOBiTAK Uzay (Space) Technologies Research Institute (Ankara). RASAT images in various levels are available free-of-charge via Gezgin portal for Turkish citizens. In this paper, the images in panchromatic (7.5 m GSD) and RGB (15 m GSD) bands in various levels were investigated with respect to its geometric and radiometric characteristics. The first geometric analysis is the estimation of the effective GSD as less than 1 pixel for radiometrically processed level (L1R) of both panchrom ...Daha fazlası

Konferans Nesnesi 2016 XXIII ISPRS CONGRESS, COMMISSION I41 ( B1 ) , pp. 2 - 290 1023 Görüntülenme

PLEIADES PROJECT: ASSESSMENT OF GEOREFERENCING ACCURACY, IMAGE QUALITY, PANSHARPENING PERFORMENCE AND DSM/DTM QUALITY

Topan, Huseyin | Cam, Ali | Ozendi, Mustafa | Oruc, Murat | Jacobsen, Karsten | Taskanat, Talha

Pleiades 1A and 1B are twin optical satellites of Optical and Radar Federated Earth Observation (ORFEO) program jointly miming by France and Italy. They are the first satellites of Europe with sub-meter resolution. Airbus DS (formerly Astrium Geo) runs a MyGIC (formerly Pleiades Users Group) program to validate Pleiades images worldwide for various application purposes. The authors conduct three projects, one is within this program, the second is supported by BEU Scientific Research Project Program, and the third is supported by TUBITAK. Assessment of georeferencing accuracy, image quality, pa ...Daha fazlası

Konferans Nesnesi 2016 XXIII ISPRS CONGRESS, COMMISSION I41 ( B1 ) , pp. 5 - 510 1148 Görüntülenme

GEOSPATIAL ANALYSIS USING REMOTE SENSING IMAGES: CASE STUDIES OF ZONGULDAK TEST FIELD

Bayik, Caglar | Topan, Huseyin | Ozendi, Mustafa | Oruc, Murat | Cam, Ali | Abdikan, Saygin

Inclined topographies are one of the most challenging problems for geospatial analysis of air-borne and space-borne imageries. However, flat areas are mostly misleading to exhibit the real performance. For this reason, researchers generally require a study area which includes mountainous topography and various land cover and land use types. Zonguldak and its vicinity is a very suitable test site for performance investigation of remote sensing systems due to the fact that it contains different land use types such as dense forest, river, sea, urban area; different structures such as open pit min ...Daha fazlası

Konferans Nesnesi 2016 XXIII ISPRS Congress, Commission I41 ( B1 ) , pp. 4 - 442 1073 Görüntülenme

MONITORING THE SURFACE HEAT ISLAND (SHI) EFFECTS OF INDUSTRIAL ENTERPRISES

Sekertekin, A. | Kutoglu, S. H. | Kaya, S. | Marangoz, A. M.

The aim of this study is to present the effects of industrial enterprises on Land Surface Temperature (LST) and to retrieve Surface Heat Island (SHI) maps of these regions. SHI is one of the types of Urban Heat Island (UHI) and as the urban areas grow in a city, UHI effect becomes bigger. The city centre of Zonguldak was chosen as study area and Landsat 5 satellite data were used as materials. Zonguldak has important industrial enterprises like thermal power plants and iron and steel plant. ERDEMIR is the biggest iron and steel plant in Turkey and it is one of the biggest ones in Europe, as we ...Daha fazlası

Konferans Nesnesi 2016 XXIII ISPRS Congress, Commission VI41 ( B6 ) , pp. 2 - 293 733 Görüntülenme

SPATIAL DISTRUBITON OF CHILDREN TREATED BY CANCER IN ZONGULDAK, TURKEY

Topan, Aysel | Bayram, Dilek | Ozendi, Mustafa | Cam, Ali | Ozturk, Ozlem | Ayyildiz, Tulay Kuzlu | Kulakci, Hulya

This research is focused on the examination of child cancer cases in Zonguldak ( Turkey) descriptively in epidemiological aspect thanks to GIS. Universe of the study is composed of 60 children between 0-19 years old, treated in Children Oncology Clinic of Health Application and Research Center in BEU. Whole universe was reached without selecting a sample in the study. Data were collected by using a form prepared by obtaining expert advice and they were applied to children and their parents at study dates. Results were expressed as percentages. Chi-Square test was used in intergroup comparisons ...Daha fazlası

Konferans Nesnesi 2016 XXIII ISPRS CONGRESS, COMMISSION VIII41 ( B8 ) , pp. 2 - 236 964 Görüntülenme

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