Sökning: "perceptual analysis"

Visar resultat 1 - 5 av 87 avhandlingar innehållade orden perceptual analysis.

  1. 1. Computer methods for voice analysis

    Detta är en avhandling från Stockholm : KTH

    Författare :Svante Granqvist; KTH.; [2003]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; voice analysis; perceptual analysis; fundamental frequency; correlogram; aperiodicity; Fourier analysis; high-speed imaging; laryngoscopy; vocal fold vibration; voice accumulation.; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : This thesis consists of five articles and a summary. Thethesis deals with methods for measuring properties of thevoice. The methods are all computer-based, but utilisedifferent approaches for measuring different aspects of thevoice.Paper I introduces the Visual Sort and Rate (VSR) method forperceptual rating of voice quality. LÄS MER

  2. 2. Perceptual Surface Reconstruction

    Detta är en avhandling från Department of Cognitive Science, Lund University

    Författare :Jens Månsson; [2005]
    Nyckelord :HUMANIORA; HUMANITIES; system; kontroll; Psychology; Psykologi; numerisk analys; Datalogi; systems; control; numerical analysis; Surface; Contour; Depth; Vision; Binocular; Computer science;

    Sammanfattning : How does the brain transform the 2-D light arrays in our eyes into a meaningful 3-D description of surfaces around us? What assumptions does the visual system make about the world when information is incomplete? And how are these assumptions computationally expressed in this perceptual reconstruction process? These questions, and other aspects of binocular depth perception are analysed from a theoretical and computational perspective, as well as through empirical investigations. In paper one, the fundamentals of stereopsis are briefly reviewed, and the difficulties related with resolving the (stereo) correspondence problem are particularly discussed. LÄS MER

  3. 3. Perception, Analysis and Synthesis of Speaker Age

    Detta är en avhandling från Linguistics and Phonetics

    Författare :Susanne Schötz; [2006]
    Nyckelord :HUMANIORA; HUMANITIES; phonology; perceptual cues; speaker age; automatic speaker recognition; acoustic analysis; acoustic correlates; data-driven; Phonetics; formant synthesis; Fonetik; fonologi; Technological sciences; Teknik;

    Sammanfattning : Speaker age is an important paralinguistic feature in speech which has to be considered in the study of phonetic variation. Knowledge about this feature may be used to improve speech technology applications, e.g. automatic speech recognition and speech synthesis. LÄS MER

  4. 4. Discrete Scale-Space Theory and the Scale-Space Primal Sketch

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Tony Lindeberg; KTH.; [1991]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Computer vision; low-level processing; scale-space; diffusion; Gaussian filtering; discrete smoothing; primal sketch; segmentation; descriptive elements; scale detection; image structure; focus-of-attention; tuning low-level processing; blob detection; edge detection; edge focusing; histogram analysis; junction classification; perceptual grouping; texture analysis; critical points; classification of blob events; bifurcations; drift velocity; density of local extrema; multi-scale representation; digital signal processing; Computer Science; Datalogi;

    Sammanfattning : This thesis, within the subfield of computer science known as computer vision, deals with the use of scale-space analysis in early low-level processing of visual information. The main contributions comprise the following five subjects:The formulation of a scale-space theory for discrete signals. LÄS MER

  5. 5. Perceptual analysis of odorous irritants in indoor air

    Detta är en avhandling från Stockholm : Stockholm University

    Författare :Hassan Shams Esfandabad; Stockholms universitet.; [1993]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Housing and health; Indoor air pollution; Inomhusklimat; Föroreningar; Luktsinnet;

    Sammanfattning : .... LÄS MER