Now showing items 1-4 of 4

    • Automatic detection of geospatial objects using multiple hierarchical segmentations 

      Akçay, H. G.; Aksoy, S. (Institute of Electrical and Electronics Engineers, 2008-07)
      The object-based analysis of remotely sensed imagery provides valuable spatial and structural information that is complementary to pixel-based spectral information in classification. In this paper, we present novel methods ...
    • Downlink beamforming under individual SINR and per antenna power constraints 

      Yazarel, Y.K.; Aktas, D. (2007)
      In this paper we consider the problem of finding the optimum beamforming vectors for the downlink of a multiuser system, where there are individual signal to interference plus noise ratio (SINR) targets for each user. ...
    • Integration of structural and semantic models for multimedia metadata management 

      Little, S.; Martinelli, M.; Salvetti O.; Güdükbay U.; Ulusoy, Ö.; De Chalendar G.; Grefenstette G. (2007)
      The management and exchange of multimedia data is challenging due to the variety of formats, standards and intended applications. In addition, production of multimedia data is rapidly increasing due to the availability of ...
    • Threshold broadcast encryption with reduced complexity 

      Kaşkaloǧlu, K.; Kaya, K.; Selçuk, A.A. (2007)
      Threshold Broadcast Encryption (TBE) is a promising extension of threshold cryptography with its advantages over traditional threshold cryptosystems, such as eliminating the need of a trusted party, the ability of setting ...