Browsing by Keywords "Markov models"

Now showing items 1-7 of 7

    • A performance evaluation framework of a rate-controlled MPEG video transmission over UMTS networks 

      Akar, Nail; Barbera, M.; Budzisz, L.; Ferrùs, R.; Kankaya, Emre; Schembra, G. (IEEE, 2007-07)
      UMTS is designed to offer high bandwidth radio access with QoS assurances for multimedia communications. In particular, real-time video communications services are expected to become a successful experience under UMTS ...

    • A resampling-based Markovian model for automated colon cancer diagnosis 

      Ozdemir, E.; Sokmensuer, C.; Gunduz Demir, C. (Institute of Electrical and Electronics Engineers, 2012-01)
      In recent years, there has been a great effort in the research of implementing automated diagnostic systems for tissue images. One major challenge in this implementation is to design systems that are robust to image ...

    • Resampling-based Markovian modeling for automated cancer diagnosis 

      Özdemir, Erdem (Bilkent University, 2011)
      Correct diagnosis and grading of cancer is very crucial for planning an effective treatment. However, cancer diagnosis on biopsy images involves visual interpretation of a pathologist, which is highly subjective. This ...

    • A robust system for counting people using an infrared sensor and a camera 

      Erden, F.; Alkar, A. Z.; Çetin, A. Enis (Elsevier BV, 2015)
      In this paper, a multi-modal solution to the people counting problem in a given area is described. The multi-modal system consists of a differential pyro-electric infrared (PIR) sensor and a camera. Faces in the surveillance ...

    • Simulated annealing for texture segmentation with Markov models 

      Yalabık, M. Cemal; Yalabık, N. (IEEE, 1989)
      Binary textured images are segmented into regions of different textures. The binary Markov model is used, and model parameters are assumed to be unknown prior to segmentation. The parameters are estimated using a ...

    • VOC gas leak detection using pyro-electric infrared sensors 

      Erden, Fatih; Soyer, E. B.; Toreyin, B. U.; Çetin, A. Enis (IEEE, 2010)
      In this paper, we propose a novel method for detecting and monitoring Volatile Organic Compounds (VOC) gas leaks by using a Pyro-electric (or Passive) Infrared (PIR) sensor whose spectral range intersects with the absorption ...

    • Wavelet based flickering flame detector using differential PIR sensors 

      Erden, F.; Toreyin, B. U.; Soyer, E. B.; Inac, I.; Gunay, O.; Kose, K.; Çetin, A. Enis (Elsevier, 2012-07-06)
      A Pyro-electric Infrared (PIR) sensor based flame detection system is proposed using a Markovian decision algorithm. A differential PIR sensor is only sensitive to sudden temperature variations within its viewing range and ...