Sökning: "liveness"

Visar resultat 1 - 5 av 13 avhandlingar innehållade ordet liveness.

  1. 1. Evidence for "liveness" in face biometrics

    Författare :Klaus Kollreider; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Motion estimation; Optical flow of lines; Quangles; Object detection; OFL; Liveness detection; Anti-spoofing measures; Structure tensor; Quantized angle features; Face biometrics;

    Sammanfattning : Aliveness or "liveness" detection is a novel but crucial topic in biometrics. In this study we will investigate it for face biometrics. The problem is given by the real-time requirements of such a system to be able to avert advanced spoofing attempts, e.g. LÄS MER

  2. 2. Verifying Absence of ∞ Loops in Parameterized Protocols

    Författare :Mayank Saksena; Bengt Jonsson; Ahmed Bouajjani; Uppsala universitet; []
    Nyckelord :formal methods; verification; model checking; infinite-state systems; regular model checking; liveness; graph transformation;

    Sammanfattning : The complex behavior of computer systems offers many challenges for formal verification. The analysis quickly becomes difficult as the number of participating processes increases. A parameterized system is a family of systems parameterized on a number n, typically representing the number of participating processes. LÄS MER

  3. 3. Going Live : Collaborative Video Production After Television

    Författare :Arvid Engström; Oskar Juhlin; Elizabeth Churchill; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Video; live; production; broadcasting; mobile; amateur; liveness; interaction design; collaboration; participatory media; Man-Machine-Interaction MMI ; människa-maskin-interaktion MMI ;

    Sammanfattning : This thesis explores social and creative practices that emerge with new mobile video technology. The work frames a design space that spans across both the social and technical domains. LÄS MER

  4. 4. Musikens politiska ekonomi : lagstiftningen, ljudmedierna och försvaret av den levande musiken, 1925-2000

    Författare :Rasmus Fleischer; Elisabeth Elgán; Orsi Husz; Södertörns högskola; []
    Nyckelord :HUMANITIES; HUMANIORA; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; HUMANITIES; HUMANIORA; HUMANIORA; HUMANIORA; HUMANITIES; HUMANITIES; commodification; aestheticization; copyright; corporatism; critical theory; cultural political economy; discjockeys; history; industrialization; liveness; media theory; music; musicians; performers’ rights; radio; record industry; reproducibility; trade unions; aestheticization;

    Sammanfattning : .... LÄS MER

  5. 5. Live Mobile Video Interaction : Inventing and investigating technology, formats and applications

    Författare :Mudassar Ahmad Mughal; Oskar Juhlin; Gina Venolia; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; human computer interaction; liveness; live; ambient video; mobile webcasting; data- och systemvetenskap; Computer and Systems Sciences;

    Sammanfattning : The convergence of inexpensive video-enabled mobile phones, high-speed mobile data networks and ubiquitous sensing devices opens up a new design space called “live mobile video interaction”. It gives rise to a new genre of applications concerning live mobile video production, which can be seen as an instance of the said space. LÄS MER