Now showing items 1-20 of 63

    • AC-driven, color-and brightness-tunable organic light-emitting diodes constructed from an electron only device 

      Zhao, Y.; Chen, R.; Gao, Y.; Leck, K.S.; Yang X.; Liu, S.; Abiyasa, A.P.; Divayana, Y.; Mutlugun, E.; Tan, S.T.; Sun H.; Demir, H. V.; Sun X.W. (2013)
      In this paper, a color- and brightness-tunable organic light-emitting diode (OLED) is reported. This OLED was realized by inserting a charge generation layer into an electron only device to form an n-i-p-i-n structure. It ...
    • Adaptive correction and look-up table based interpolation of quadrature encoder signals 

      Suhre, A.; Kose, K.; Cetin, A. E.; Gurcan, M.N. (2011)
      In this paper, an adaptive color transform for image compression is introduced. In each block of the image, coefficients of the color transform are determined from the previously compressed neighboring blocks using weighted ...
    • The aid of colour on spatial navigation: A study in a virtual hospital environment 

      Kumaoğlu, Özge; Olguntürk, Nilgün (ACM, 2016)
      The aim of this study is to explore the effects of colour as visuo-spatial cue on spatial navigation and developing a cognitive map in elderly in a simulated virtual hospital environment. The study further purports to ...
    • The architectural colour design process: an evaluation of sequential media via semantic ratings 

      Ural, S. E.; Yilmazer, S. (John Wiley & Sons, 2010-01)
      In recent studies, contextual situations of applied colours are compared to colours presented as samples or chips. Findings of such studies point out different results in terms of similarities or differences between the ...
    • Architectural requirements for energy efficient execution of graph analytics applications 

      Özdal, Muhammet Mustafa; Yeşil, Şerif; Kim, T.; Ayupov, A.; Burns, S.; Öztürk, Özcan (IEEE, 2015-11)
      Intelligent data analysis has become more important in the last decade especially because of the significant increase in the size and availability of data. In this paper, we focus on the common execution models and ...
    • Automated cancer stem cell recognition in H and E stained tissue using convolutional neural networks and color deconvolution 

      Aichinger, W.; Krappe, S.; Cetin, A. E.; Cetin Atalay, R.; Üner A.; Benz, M.; Wittenberg, T.; Stamminger, M.; Münzenmayer, C. (SPIE, 2017)
      The analysis and interpretation of histopathological samples and images is an important discipline in the diagnosis of various diseases, especially cancer. An important factor in prognosis and treatment with the aim of a ...
    • Color and visual complexity in abstract images 

      Kocaoğlu, R.; Olguntürk, N. (Wiley, 2018)
      One of the more important aspects of vision is color perception, which involves aesthetic and psychological responses. The aim of this study is to understand the association between color and visual complexity in abstract ...
    • Color holographic reconstruction using multiple SLMs and LED illumination 

      Yaraş, F.; Onural, L. (S P I E - International Society for Optical Engineering, 2009)
      A color holographic reconstruction technique by using three light emitting diodes (LEDs) is described. Reflective type phase-only spatial light modulators (SLMs) are used since they are suitable for in-line phase holograms. ...
    • Color naming 

      Şahin, Ebru (Bilkent University, 1998)
      In this study, visual aspects of color and neurophysiological processes involved in the phenomenon, language of color and color models were explained in addition to the discussion of different ideas, orientations and ...
    • Color vision in humans and computers 

      Boyacı, Hüseyin; Akarun L. (2008)
      Humans and many other species rely on color for object recognition. What are the biological underpinnings of color vision and how can we computationally model human color perception? In this study we briefly summarize ...
    • A color-based face tracking algorithm for enhancing interaction with mobile devices 

      Bulbul, A.; Cipiloglu, Z.; Capin, T. (Springer, 2010-05)
      A color-based face tracking algorithm is proposed to be used as a human-computer interaction tool on mobile devices. The solution provides a natural means of interaction enabling a motion parallax effect in applications. ...
    • Colour and design: from natural patterns to monochrome compositions 

      Olguntürk, N.; Demirkan, H. (Elsevier, 2011-03)
      There is no doubt that nature provides endless inspiration to the world of design. In order to explore the role of colour in design, forty-two people were asked to first choose a pattern from nature, then to abstract this ...
    • Colour naming 

      Ekici, E. Ş.; Yener, C.; Camgöz, N. (Elsevier, 2006)
      An experimental study exploring colour ranges corresponding to different colour names has been conducted. Available colour terms in Turkish language have been identified and the most frequently known or used colour terms ...
    • Compression of images in CFA format 

      Cüce, Halil İbrahim; Çetin, Ahmet Enis; Davey, M. K. (IEEE, 2006)
      In this paper, images in Color Filter Array (CFA) format are compressed without converting them to full-RGB color images. Green pixels are extracted from the CFA image data and placed in a rectangular array, and compressed ...
    • Computer vision based method for real-time fire and flame detection 

      Töreyin, B. U.; Dedeoǧlu, Y.; Güdükbay U.; Çetin, A. E. (Elsevier BV, 2006-01-01)
      This paper proposes a novel method to detect fire and/or flames in real-time by processing the video data generated by an ordinary camera monitoring a scene. In addition to ordinary motion and color clues, flame and fire ...
    • Critical role of CdSe nanoplatelets in color-converting CdSe/ZnS nanocrystals for InGaN/GaN light-emitting diodes 

      Hasanov N.; Sharma, V. K.; Martinez, P. L. H.; Tan S.T.; Demir, H. V. (OSA - The Optical Society, 2016)
      Here we report CdSe nanoplatelets that are incorporated into color-converting CdSe/ZnS nanocrystals for InGaN/GaN light-emitting diodes. The critical role of CdSe nanoplatelets as an exciton donor for the color conversion ...
    • Differences in illumination estimation in #thedress 

      Toscani, M.; Gegenfurtner, K. R.; Doerschner, K. (Association for Research in Vision and Ophthalmology Inc., 2017)
      We investigated whether people who report different colors for #thedress do so because they have different assumptions about the illumination in #thedress scene. We introduced a spherical illumination probe (Koenderink, ...
    • Effect of area on color harmony in simulated interiors 

      Odabaşıoğlu, Seden; Olguntürk, Nilgün (Society for Imaging Science & Technology, 2017)
    • The effect of chromatic and achromatic color schemes on children’s emotions in a preschool classroom 

      Dalirnaghdeh, Donya (Bilkent University, 2016-05)
      Color is salient design element that can influence people's behaviours and emotions in the interior space, it can also trigger specific physical and psychological responses in human beings. Therefore, its proper use in the ...
    • Effects of a colored wall and a colored board on performances of children with attention deficit hyperactivity disorder 

      Öktem, Zeynep (Bilkent University, 2019-09)
      Children with Attention Deficit Hyperactivity Disorder (ADHD) face many challenges throughout their educational lives. This study aims to find out whether there is a board and wall color combination that will help focus ...