Now showing items 1-9 of 9

    • Camera tamper detection using wavelet analysis for video surveillance 

      Aksay, A.; Temizel, A.; Çetin, A. Enis (IEEE, 2007-09)
      It is generally accepted that video surveillance system operators lose their concentration after a short period of time and may miss important events taking place. In addition, many surveillance systems are frequently left ...
    • 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 ...
    • Error resilient layered stereoscopic video streaming 

      Tan, Ahmet Serdar; Aksay, A.; Bilen, Ç.; Bozdağı-Akar, G.; Arıkan, Erdal (IEEE, 2007)
      In this paper, error resilient stereoscopic video streaming problem is addressed. Two different Forward Error Correction (FEC) codes namely Systematic LT and RS codes are utilized to protect the stereoscopic video data ...
    • Moving object detection in wavelet compressed video 

      Töreyin, B. U.; Çetin, A. Enis; Aksay, A.; Akhan, M. B. (Elsevier, 2005)
      In many surveillance systems the video is stored in wavelet compressed form. In this paper, an algorithm for moving object and region detection in video which is compressed using a wavelet transform (WT) is developed. The ...
    • Moving region detection in compressed video 

      Töreyin, B. U.; Çetin, A. Enis; Aksay, A.; Akhan, M. B. (Springer, 2004)
      In this paper, an algorithm for moving region detection in compressed video is developed. It is assumed that the video can be compressed either using the Discrete Cosine Transform (DOT) or the Wavelet Transform (WT). The ...
    • 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 ...
    • Rate-distortion optimized layered stereoscopic video streaming with raptor codes 

      Tan, A. Serdar; Aksay, A.; Bilen, C.; Bozdağı-Akar, G.; Arıkan, Erdal (IEEE, 2007)
      A near optimal streaming system for stereoscopic video is proposed. Initially, the stereoscopic video is separated into three layers and the approximate analytical model of the Rate-Distortion (RD) curve of each layer is ...
    • Unequal error protection for stereoscopic video streaming 

      Tan, Ahmet Serdar; Aksay, A.; Bilen, Ç.; Bozdağı-Akar, G.; Arıkan, Erdal (IEEE, 2007)
      The utilization of forward error correction (FEC) schemes for stereo video streaming is investigated. Stereo video is categorized in 3 layers and each layer is protected with different protection ratios for efficient ...
    • Video gözetleme uygulamalarında kamera sabotaj sezimi 

      Aksay, A.; Temizel, A.; Çetin, A. Enis (IEEE, 2007-06)
      Son yıllarda video gözetim uygulamaları için kullanılan kamera sayılarında kayda değer artış olmuştur. Bu kameraların amaçlandığı gibi çalışıyor olması anlamlı bilgi yakalaması önemlidir. Suç işleyecek kişiler kamera önünü ...