Mustafa Ozendi

Dr. Mustafa Ozendi


Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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25 March 2018 in Remote Sensing Letters
Verified
Journal Article
Closed access
BCBayik Caglar
Bayik Caglar
KBKazimierz Becek
Kazimierz Becek
CMC. Mekik
C. Mekik
MOMustafa Ozendi
Mustafa Ozendi
In this contribution, we assess the vertical accuracy of the Advanced Land Observing Satellite (ALOS) World 3D 30 m (AW3D30) digital elevation model (DEM) using the runway method (RWYM). The RWYM utilizes the longitudinal profiles of runways which are reliable and ubiquitous reference data. A reference dataset used in this project consists of 36 runways located at various points throughout the world. We found that AW3D30 has a remarkably low root mean square error (RMSE) of 1.78 m (one sigma). However, while analysing the results, it has become apparent that it also contains a widespread elevation anomaly. We conclude that this anomaly is the result of uncompensated sensor noise and the data processing algorithm. Also, we note that the traditional accuracy assessment of a DEM does not allow for identification of these type of anomalies in a DEM.

15 August 2022 in Geomatik
Verified
Journal Article
Closed access
PDF file
MOMustafa Ozendi
Mustafa Ozendi
Kültür varlıklarının korunması ve gelecek nesillere aktarılması büyük önem taşımaktadır. Bu aktarım için varlığın dijital dokümantasyonunun yapılmış olması gerekmektedir. Böylece zarar gören kültür varlığının restorasyonu için projelendirme gerçeğe uygun olacaktır. Bu çalışmada Yersel Lazer Tarayıcı (YLT) kullanılarak kültür varlıklarının dijital dokümantasyon adımları detaylı bir şekilde ele alınmıştır. Çalışmada Zonguldak’ta bulunan Uzun Mehmet Anıtı kullanılmıştır. Çalışmada 13 adet tarama gerçekleştirilmiştir. Birleştirme ve hatalı noktaların temizlenmesinden sonra 3 boyutlu (3B) yüzey model oluşturulmuştur. Bu yüzey modeli kullanılarak ihtiyaca yönelik olarak uygulamalar yapılmıştır. Projelere temel olmak üzere CAD çizimleri yapılmıştır. Ayrıca 3B yazıcı kullanılarak anıtın ≈1/100 ölçeğinde gerçek modelinin baskısı alınmıştır.

18 March 2019 in Arabian Journal of Geosciences
Verified
Journal Article
Closed access
PDF file
HTHüseyin Topan
Hüseyin Topan
Karsten JacobsenKarsten Jacobsen
Karsten Jacobsen
ACAli Cam
Ali Cam
MOMustafa Ozendi
Mustafa Ozendi
MOMurat Oruç
Murat Oruç
Talha TaşkanatTalha Taşkanat
Talha Taşkanat

24 August 2017 in Preprints.org
Verified
Preprint
Open access
PDF file
Caglar BayikCaglar Bayik
Caglar Bayik
KBKazimierz Becek
Kazimierz Becek
ÇMÇetin Mekik
Çetin Mekik
MOMustafa Ozendi
Mustafa Ozendi
The digital elevation model (DEM) is one of the key geospatial datasets used in many fields of engineering and science for countless applications. In this contribution, we assess the vertical accuracy of the Advanced Land Observing Satellite (ALOS) World 3D-30m (AW3D30) DEM using the runway method (RWYM). The RWYM utilizes the longitudinal profiles of runways which are reliable and ubiquitous reference data. A reference dataset used in this project consists of 36 runways located at various points throughout the world. The same dataset was previously used to test the accuracy of WorldDEMTM. Our study indicates that AW3D30 has a remarkably high RMSE of 1.78 m (one σ). However, while analyzing the results, it has become apparent that it also contains a widespread elevation anomaly. We conclude that this anomaly is the result of uncompensated sensor noise and the data processing algorithm (downsampling of the higher resolution data). We believe that this issue should be communicated to the user community. Also, we would like to note that the traditional accuracy assessment of a DEM, e.g., statistical assessment of the elevation differences = model – reference, does not allow for identification of these type of anomalies in a DEM.