Sökning: "face recognition."

Visar resultat 1 - 5 av 71 avhandlingar innehållade orden face recognition..

  1. 1. Face Recognition : A Single View Based HMM Approach

    Författare :Hung Son Le; Haibo Li; Josef Bigun; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; face recognition; pattern recognition; computer vision; HMM; Hidden Markov Models; contrast enhancement; pyramid fusion; image processing; Computer science; Datavetenskap;

    Sammanfattning : This dissertation addresses the challenges of giving computers the ability of doing face recognition, i.e. discriminate between different faces. Face recognition systems are commonly trained with a database of face images, becoming “familiar” with the given faces. LÄS MER

  3. 2. Predictive eyes precede retrieval : visual recognition as hypothesis testing

    Författare :Linus Holm; Timo Mäntylä; Lars Nyberg; David Melcher; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; declarative memory; face perception; object recognition; scene recognition; eye movements; visual awareness; recollection; familiarity; Psychology; Psykologi;

    Sammanfattning : Does visual recognition entail verifying an idea about what is perceived? This question was addressed in the three studies of this thesis. The main hypothesis underlying the investigation was that visual recognition is an active process involving hypothesis testing. LÄS MER

  4. 3. The role of gender in face recognition

    Författare :Jenny Rehnman; Agneta Herlitz; Torun Lindholm; Diane Halpern; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Face recognition; Sex differences; Own-sex bias; Own-group bias; Attention; Biology; Socialization; Psychobiosocial; Psychology; Psykologi; psykologi; Psychology;

    Sammanfattning : Faces constitute one of the most important stimuli for humans. Studies show that women recognize more faces than men, and that females are particularly able to recognize female faces, thus exhibiting an own-sex bias. LÄS MER

  5. 4. Facing the Illusion Piece by Piece : Face Recognition for Persons with Learning Disability

    Författare :Henrik Danielsson; Jerker Rönnberg; Jan Andersson; Erland Hjelmquist; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Face recognition; Memory conjunction error; Binding; Working memory; Learning disability; Witness psychology; Ansiktsigenkänning; Falska minnen; Bindning; Arbetsminne; Utvecklingsstörning; Vittnespsykologi; Disability research; Handikappsforskning;

    Sammanfattning : Avhandlingens övergripande syfte var att undersöka ansiktsigenkänning för personer med och utan utvecklingsstörning. Tre specifika forskningsfrågor undersöktes:1. Hur ser interaktionen ut mellan familjaritet med ansikten och familjaritet med miljöer när det gäller bildigenkänning för personer med utvecklingsstörning?2. LÄS MER

  7. 5. That voice sounds familiar : factors in speaker recognition

    Författare :Erik J. Eriksson; Kirk P. H. Sullivan; Christopher Darwin; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; speaker recognition; accent; emotions; hearing; spectral moments; formant transitions; dialect; Cognitive science; Kognitionsvetenskap;

    Sammanfattning : Humans have the ability to recognize other humans by voice alone. This is important both socially and for the robustness of speech perception. This Thesis contains a set of eight studies that investigates how different factors impact on speaker recognition and how these factors can help explain how listeners perceive and evaluate speaker identity. LÄS MER