Now showing items 1-9 of 9

    • Bant genişliği kısıtı altında videonun en iyi iletimi 

      Gürses, E.; Akar, G. B.; Akar, Nail (IEEE, 2006-04)
      In this paper, we propose an optimal video streaming framework using retransmissions based on the theory of Markov Decision Processes (MDP). Using MDPs, we calculate average reward optimal policies so as to maximize the ...
    • Çok-akışlı eşler arası isteğe bağlı video sistemlerinin Markov zinciri tabanlı güvenilirlik modellemesi 

      Yazıcı, Mehmet Akif; Öztoprak, K.; Akar, Nail; Akar, G. B. (IEEE, 2008-04)
      Çok-akışlı eşler-arası video, gelecek nesil isteğe bağlı video sistemleri için kullanılmaya aday teknolojilerdendir. Çok-akışlı video sistemlerinin sorunlarından birisi, eş dalgalanması adı verilen, eşlerin ağla olan ...
    • E-museum: web-based tour and information system for museums 

      Baştanlar, Y.; Altıngövde, İsmail Şenol; Aksay, A.; Alav, O.; Çavuş, Özge; Yardımcı, Y.; Ulusoy, Ozgur; Güdükbay, Uğur; Çetin, A. Enis; Akar, G. B.; Aksoy, Selim (IEEE, 2006)
      A web-based system - consisting of data entrance, access and retrieval modules - is constructed for museums. Internet users that visit the e-museum, are able to view the written and visual information belonging to the ...
    • Impact of scalability in video transmission in promotion-capable differentiated services networks 

      Gürses, E.; Akar, G. B.; Akar, Nail (IEEE, 2002-09)
      Transmission of high quality video over the Internet faces many challenges including unpredictable packet loss characteristics of the current Internet and the heterogeneity of receivers in terms of their bandwidth and ...
    • Rate-distortion optimization for stereoscopic video streaming with unequal error protection 

      Tan, A. S.; Aksay, A.; Akar, G. B.; Arikan, E. (SpringerOpen, 2009)
      We consider an error-resilient stereoscopic streaming system that uses an H.264-based multiview video codec and a rateless Raptor code for recovery from packet losses. One aim of the present work is to suggest a heuristic ...
    • A simple and effective mechanism for stored video streaming with TCP transport and server-side adaptive frame discard 

      Gürses, E.; Akar, G. B.; Akar, N. (Elsevier, 2005)
      Transmission control protocol (TCP) with its well-established congestion control mechanism is the prevailing transport layer protocol for non-real time data in current Internet Protocol (IP) networks. It would be desirable ...
    • 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 ...
    • Three-dimensional media for mobile devices 

      Gotchev, A.; Akar, G. B.; Capin, T.; Strohmeier, D.; Boev, A. (Institute of Electrical and Electronics Engineers, 2011-04)
      This paper aims at providing an overview of the core technologies enabling the delivery of 3-D Media to next-generation mobile devices. To succeed in the design of the corresponding system, a profound knowledge about the ...
    • Uçtan uca modelleme ile kesintisiz stereo video iletimi 

      Tan, A. Serdar; Aksay, A; Akar, G. B.; Arıkan, Erdal (IEEE, 2008-04)
      Bu çalışmamızda, hata koruma yöntemi olarak oransız kodları (Raptor Kodları) kullanan kesintisiz bir stereo video iletim sistemi önermekteyiz. İlk olarak video kodlayıcının hızbozulum (HB) eğrisini ve kanal koruma kodunun ...