Now showing items 1-20 of 44

    • Algorithms for effective querying of compound graph-based pathway databases 

      Dogrusoz, U.; Cetintas, A.; Demir, E.; Babur, O. (BioMed Central Ltd., 2009)
      Background: Graph-based pathway ontologies and databases are widely used to represent data about cellular processes. This representation makes it possible to programmatically integrate cellular networks and to investigate ...
    • Animation of boiling phenomena 

      Bulbul, A.; Kucuktunc, O.; Ozguc, B. (2008)
      Phenomenon of boiling is a challenging topic for computer graphics due to its complex hydrodynamics and formulation. Realistic fluid animations require very heavy three-dimensional fluid flow calculations, and surface ...
    • Attention-aware disparity control in interactive environments 

      Celikcan, U.; Cimen, G.; Kevinc, E. B.; Capin, T. (Springer, 2013)
      Our paper introduces a novel approach for controlling stereo camera parameters in interactive 3D environments in a way that specifically addresses the interplay of binocular depth perception and saliency of scene contents. ...
    • BilKristal 4.0: A tool for crystal parameters extraction and defect quantification 

      Okuyan, E.; Okuyan, C. (Elsevier, 2015)
      In this paper, we present a revised version of BilKristal 3.0 tool. Raycast screenshot functionality is added to provide improved visual analysis. We added atomic distance analysis functionality to assess crystalline ...
    • ChiBE: interactive visualization and manipulation of BioPAX pathway models 

      Babur, O.; Dogrusoz, U.; Demir, E.; Sander, C. (Oxford University Press, 2010)
      SUMMARY: Representing models of cellular processes or pathways in a graphically rich form facilitates interpretation of biological observations and generation of new hypotheses. Solving biological problems using large ...
    • A clustering-based method to estimate saliency in 3D animated meshes 

      Bulbul, A.; Arpa, S.; Capin, T. (Elsevier Ltd, 2014)
      We present a model to determine the perceptually significant elements in animated 3D scenes using a motion-saliency method. Our model clusters vertices with similar motion-related behaviors. To find these similarities, for ...
    • Combined filtering and key-frame reduction of motion capture data with application to 3DTV 

      Önder O.; Erdem Ç.; Erdem, T.; Güdükbay, U.; Özgüç, B. (2006)
      A new method for combined filtering and key-frame reduction of motion capture data is proposed. Filtering of motion capture data is necessary to eliminate any jitter introduced by a motion capture system. Key-frame reduction, ...
    • A context aware approach for enhancing gesture recognition accuracy on handheld devices 

      Yıldırım, Hacı Mehmet (Bilkent University, 2010)
      Input capabilities (e.g. joystick, keypad) of handheld devices allow users to interact with the user interface to access the information and mobile services. However, these input capabilities are very limited because of ...
    • Continuous processing of images through user sketched functional blocks 

      Kaya, A.; Ozguc, B. (Wiley-Blackwell, 1988)
      Our aim is to implement an image processing system with previously defined algorithms through the use of functional blocks connected together to form a diagram that we call a schematic. A functional block means the ...
    • Cubist style rendering of 3D virtual environments 

      Arpa, Sami (Bilkent University, 2012)
      Cubism, pioneered by Pablo Picasso and Georges Braque, was a breakthrough in art, influencing artists to abandon existing traditions. In this thesis, we present a novel approach for cubist rendering of 3D synthetic ...
    • Current research activities on holographic video displays 

      Onural, L.; Yaraş, F.; Kang, H. (S P I E - International Society for Optical Engineering, 2010)
      "True 3D" display technologies target replication of physical volume light distributions. Holography is a promising true 3D technique. Widespread utilization of holographic 3D video displays is hindered by current technological ...
    • Example-based retargeting of human motion to arbitrary mesh models 

      Celikcan, U.; Yaz I.O.; Capin, T. (Blackwell Publishing Ltd, 2015)
      We present a novel method for retargeting human motion to arbitrary 3D mesh models with as little user interaction as possible. Traditional motion-retargeting systems try to preserve the original motion, while satisfying ...
    • Fast ray tracing 3D models 

      İşler, Veysi; Özgüç, Bülent (1991)
      In many computer graphics applications such as CAD, realistic displays have very important and positive effects on the users of the system. There are several techniques to generate realistic images with the computer. Ray ...
    • A framework for enhancing depth perception in computer graphics 

      Cipiloglu, Z.; Bulbul, A.; Capin, T. (2010)
      This paper introduces a solution for enhancing depth perception in a given 3D computer-generated scene. For this purpose, we propose a framework that decides on the suitable depth cues for a given scene and the rendering ...
    • A fuzzy logic based approach for enchanging depth perception in computer graphics 

      Çipiloğlu, Zeynep (Bilkent University, 2010)
      Rapid progress in 3D rendering and display technologies brings the problem of better visualization of 3D content. Providing correct depth information and enabling the user to perceive the spatial relationship between the ...
    • Generating 3D thumbnails for 3D contents 

      Yiğit, Yeliz (Bilkent University, 2010)
      Creating effective thumbnails is a challenging task because finding important features and preserving the quality of the content is difficult. Additionally, as the popularity of 3D technologies is increasing, the usage ...
    • How the ocean personality model affects the perception of crowds 

      Durupınar, F.; Pelechano, N.; Allbeck, J. M.; Güdükbay U.; Badler, N. I. (Institute of Electrical and Electronics Engineers, 2011)
      A personality model named High-Density Autonomous Crowds (HiDAC) simulation system provides individual differences by assigning each person different psychological and physiological traits. Users normally set these parameters ...
    • Hypersolver: a graphical tool for commonsense set theory 

      Pakkan, M.; Akman, V. (Elsevier, 1995)
      This paper investigates an alternative set theory (due to Aczel) called the Hyperset Theory. Aczel uses a graphical representation for sets and thereby allows the representation of non-well-founded sets. A program, called ...
    • Improving application behavior on heterogeneous manycore systems through kernel mapping 

      Albayrak, O. E.; Akturk, I.; Ozturk, O. (2013)
      Many-core accelerators are being more frequently deployed to improve the system processing capabilities. In such systems, application mapping must be enhanced to maximize utilization of the underlying architecture. Especially, ...
    • An insight on designers’ sketching activities in traditional versus digital media 

      Bilda, Z.; Demirkan, H. (Pergamon Press, 2003-01)
      This study aims at gaining an insight on designers' cognitive processes while sketching in digital vs traditional media. Empirical data on design processes have been obtained from protocol analyses of six interior designers ...