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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...
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 ...
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...
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...
Uydu Görüntülerinin Otomatik Analizi ile Afet Hasar Tespiti ve Kanunsuz Sınır Geçişlerinin Önlenmesi
Alatan, Abdullah Aydın; Buzcu, İlker; Yarman Vural, Fatoş Tunay; Çalışkan, Akın; Beşbınar, Beril; Akar, Gözde; Gürbüz, Yeti Ziya; Halıcı, Uğur; Düzgün, Hafize Şebnem; Batı, Emrecan; Ulusoy, İlkay; Çetin, Yasemin; 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...