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Kirjasto - Tampereen teknillinen yliopisto

Research publications

 

Recent Submissions

  • Rantanen, Ville; Kumpulainen, Pekka; Venesvirta, Hanna; Verho, Jarmo; Spakov, Oleg; Lylykangas, Jani; Vetek, Akos; Surakka, Veikko; Lekkala, Jukka (2012)
    A wide range of applications can benefit from the measurement of facial activity. The current study presents a method that can be used to detect the movements of different parts of the face and expressions that they form. ...
  • Rantanen, Ville; Kumpulainen, Pekka; Venesvirta, Hanna; Verho, Jarmo; Spakov, Oleg; Lylykangas, Jani; Vetek, Akos; Surakka, Veikko; Lekkala, Jukka (2013)
    A wide range of applications can benefit from the measurement of facial activity. The current study presents a method that can be used to detect and classify the movements of different parts of the face and the expressions ...
  • Helkala, Janne; Viitanen, Timo; Kultala, Heikki; Jääskeläinen, Pekka; Takala, Jarmo; Zetterman, Tommi; Berg, Heikki (2014-07-14)
    The SRAM memories used for embedded micro-processor devices consume a large portion of the system's power. The power dissipation of the instruction memory can be limited by using code compression methods, which may require ...
  • Rantanen, Ville; Verho, Jarmo; Lekkala, Jukka; Tuisku, Outi; Surakka, Veikko; Vanhala, Toni (2012)
    The effect of facial behaviour on gaze tracking accuracy was studied while using a prototype system that integrated head-mounted, video-based gaze tracking and a capacitive facial movement detection for respective pointing ...
  • Rantanen, Ville; Venesvirta, Hanna; Spakov, Oleg; Verho, Jarmo; Vetek, Akos; Surakka, Veikko; Lekkala, Jukka (2013)
    The measurement of the intensity of facial muscle activity can be used in several applications such as human–computer interaction and behavioural science. A new method for the intensity measurement is presented. It is based ...
  • Rantanen, Ville; Vanhala, Toni; Tuisku, Outi; Niemenlehto, Pekka-Henrik; Verho, Jarmo; Surakka, Veikko; Juhola, Martti; Lekkala, Jukka (2011)
    A light-weight, wearable, wireless gaze tracker with integrated selection command source for human–computer interaction is introduced. The prototype system combines head-mounted, video-based gaze tracking with capacitive ...
  • Rantanen, Ville; Niemenlehto, Pekka-Henrik; Verho, Jarmo; Lekkala, Jukka (2010)
    A capacitive facial movement detection method designed for human-computer interaction is presented. Some point-and-click interfaces use facial electromyography for clicking. The presented method provides a contactless ...
  • Levanen, Toni; Talvitie, Jukka; Renfors, Markku (2012)
    The increase in the peak-to-average power ratio (PAPR) is a well known but not sufficiently addressed problem with data-dependent superimposed training (DDST) based approaches for channel estimation and synchronization in ...
  • Levanen, Toni; Renfors, Markku (2010)
    In this paper an iterative, interference cancelling receive structure for single carrier transmission using superimposed training is studied. We derive the analytical MSE limits for LMMSE channel estimator using perfect ...
  • Levanen, Toni; Renfors, Markku (2012)
    In this paper, we compare the energy efficiency of a single carrier multiple-input multiple-output communications in terms of the energy per data bit required to achieve desired performance level or throughput. The comparison ...
  • Levanen, Toni; Talvitie, Jukka; Renfors, Markku (2010)
    In this paper we concentrate on the symbol level peak to average power ratio (PAPR) increase caused by a data dependent superimposed pilot sequence. Because we add the pilot sequence on top of the user data symbols, the ...
  • Levanen, Toni; Talvitie, Jukka; Renfors, Markku (2010)
    In this paper we study the MSE performance of a short ML channel estimator in a discontinuous block fading channel using superimposed pilots. The earlier analytical MSE estimates that we have seen were not concerned with ...
  • Zdanowicz, Mariusz; Harra, Juha; Mäkelä, Jyrki M.; Heinonen, Esa; Ning, Tingyin; Kauranen, Martti; Genty, Goery (2013)
    We use aerosol synthesis to fabricate ordered metal-silica nanocomposites consisting of alternating layers of pure silica and silica nanoparticles decorated with silver nanodots. These multilayer structures preserve the ...
  • Mäkitalo, Jouni; Kauranen, Martti; Suuriniemi, Saku (2014)
    We present a rigorous full-wave electromagnetic approach to analyze the modes and resonances of dielectric and plasmonic nanoparticles of practically any geometry. Using boundary integral operators, we identify the resonances ...
  • Huttunen, M.; Herranen, O.; Johansson, A.; Jiang, H.; Mudimela, P.R.; Myllyperkiö, P; Bautista, G.; Nasibulin, A.G.; Kauppinen, E.I.; Ahlskog, M.; Kauranen, M.; Pettersson, M. (2013)
    We show that optical second-harmonic generation (SHG) can be observed from individual single-walled carbon nanotubes (SWCNTs) and, furthermore, allows imaging of individual tubes. Detailed analysis of our results suggests ...
  • Zdanowicz, Mariusz; Harra, Juha; Mäkelä, Jyrki M.; Heinonen, Esa; Ning, Tingyin; Kauranen, Martti; Genty, Goery (2014)
    We perform a detailed characterisation of the second-order nonlinear optical response of nanocomposites consisting of alternating layers of silver-decorated silica glass nanoparticles and pure silica glass. The samples are ...
  • Aflaki, Payman; Gabbouj, Moncef; Rusanovskyy, Dmytro; Hannuksela, Miska M. (2013)
    Recent developments of three-dimensional (3D) video coding greatly rely on the use of Multiview Video plus Depth (MVD) data format for representing a 3D scene. This type of data can be coded with conventional video compression ...
  • Aflaki, Payman; Hannuksela, Miska M.; Rusanovskyy, Dmytro; Gabbouj, Moncef (2013)
    Depth-enhanced 3D video coding includes coding of texture views and associated depth maps. It has been observed that coding of depth map at reduced resolution provides better rate-distortion performance on synthesized views ...
  • Aflaki, Payman; Hannuksela, Miska M.; Sarbolandi, Hamed; Gabbouj, Moncef (2014)
    Viewing stereoscopic 3D content is typically enabled either by using polarizing or active shutter glasses. In certain cases, some viewers may not wear viewing glasses and hence, it would be desirable to tune the stereoscopic ...
  • Aflaki, Payman; Hannuksela, Miska M.; Gabbouj, Moncef (2013)
    In asymmetric stereoscopic video compression, the views are coded with different qualities. According to the binocular suppression theory, the perceived quality is closer to that of the higher-fidelity view. Hence, a higher ...

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