Center for Image Analysis (OGAM)

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Koz, Alper (6)
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Recent Submissions

Hierarchical classification of Sentinel 2-a images for land use and land cover mapping and its use for the CORINE system Demirkan, Doga C.; Koz, Alper; Duzguna, H. Sebnem (SPIE-Intl Soc Optical Eng, 2020-06-01) The aim of this study is to investigate the potential of the Sentinel-2 satellite for land use and land cover (LULC) mapping. The commonly known supervised classification algorithms, support vector machines (SVMs), random ...
Ground-Based Hyperspectral Image Surveillance Systems for Explosive Detection: Part II-Radiance to Reflectance Conversions Koz, Alper (Institute of Electrical and Electronics Engineers (IEEE), 2019-12-01) The usage of white references for reflectance conversion in a captured scene for potential ground-based hyperspectral image surveillance systems suffers from security, as it exposes the location of the system, and could be...
Ground-Based Hyperspectral Image Surveillance Systems for Explosive Detection: Part I-State of the Art and Challenges Koz, Alper (Institute of Electrical and Electronics Engineers (IEEE), 2019-12-01) Existing ground-based hyperspectral imaging (HSI) systems provide a good potential for standoff detection of explosives and their traces. The current technology, however, has still essential challenges to achieve a generic...
Distributed Content Based Video Identification in Peer-to-Peer Networks: Requirements and Solutions Koz, Alper; Lagendijk, R. (Inald) L. (2017-03-01) In this paper, we first discuss the essential requirements for a fingerprint (perceptual hash)-based distributed video identification system in peer-to-peer (P2P) networks in comparison with traditional central database im...
Uydu Görüntülerinin Otomatik Analizi ile Afet Hasar Tespiti ve Kanunsuz Sınır Geçişlerinin Önlenmesi Alatan, Abdullah Aydın; Yarman Vural, Fatoş Tunay; Beşbınar, Beril; Akar, Gözde; Gürbüz, Yeti Ziya; Halıcı, Uğur; Batı, Emrecan; Ulusoy, İlkay; Çinar, Umut; Koz, Alper; Özdemir, Okan Bilge; Bati, Emrecan(2015-12-31) Proje önerisinin temel amacı ODTÜ Görüntü Analizi Uygulama ve Araştırma Merkezi (OGAM) bünyesinde yer alan araştırıcıların geçmişte HAVELSAN altyükleniciliğinde gerçekleştirdikleri savunma ile ilgili SSM destekli HASAT pr...
Watermarking tests for free-view point television Apostolidis, Evlambios E.; Koz, Alper; Triantafyllidis, Georgios (2007-05-09) The recent advances in Image Based Rendering (IBR) has pioneered a new technology, free view point television, in which TV-viewers select freely the viewing position and angle by the application of IBR on the transmitted m...

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