Now showing items 21-26 of 26

    • Shadow detection using 2D cepstrum 

      Töreyin, B. Uğur; Çetin, A. Enis (SPIE, 2009-04)
      Shadows constitute a problem in many moving object detection and tracking algorithms in video. Usually, moving shadow regions lead to larger regions for detected objects. Shadow pixels have almost the same chromaticity as ...
    • Signal processing for three-dimensional holographic television displays that use binary spatial light modulators 

      Ulusoy, Erdem; Onural, Levent; Özaktaş, Haldun M. (IEEE, 2010)
      One of the important techniques used for three dimensional television (3DTV) is holography. In holographic 3DTV, spatial light modulators (SLM) are used as the display device. SLMs that provide the most limited modulation ...
    • Sun position estimation and tracking for virtual object placement in time-lapse videos 

      Balcı, H.; Güdükbay, Uğur (Springer, 2017)
      Realistic illumination of virtual objects placed in real videos is important in terms of achieving visual coherence. We propose a novel approach for illumination estimation on time-lapse videos and seamlessly insert virtual ...
    • Super-resolution using multiple quantized images 

      Özçelikkale, Ayça; Akar, G. B.; Özaktas, Haldun M. (IEEE, 2010)
      In this paper, we study the effect of limited amplitude resolution (pixel depth) in super-resolution problem. The problem we address differs from the standard super-resolution problem in that amplitude resolution is ...
    • Two-tier tissue decomposition for histopathological image representation and classification 

      Gultekin, T.; Koyuncu, C. F.; Sokmensuer, C.; Gunduz Demir, C. (Institute of Electrical and Electronics Engineers, 2015)
      In digital pathology, devising effective image representations is crucial to design robust automated diagnosis systems. To this end, many studies have proposed to develop object-based representations, instead of directly ...
    • Ultrathin phase-change coatings on metals for electrothermally tunable colors 

      Bakan, G.; Ayas S.; Saidzoda, T.; Celebi, K.; Dana, A. (American Institute of Physics Inc., 2016-08)
      Metal surfaces coated with ultrathin lossy dielectrics enable color generation through strong interferences in the visible spectrum. Using a phase-change thin film as the coating layer offers tuning the generated color by ...