Sökning: "perceptual grouping"
Hittade 5 avhandlingar innehållade orden perceptual grouping.
1. Discrete Scale-Space Theory and the Scale-Space Primal Sketch
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
2. Prosodic Phrasing in Spontaneous Swedish
Sammanfattning : One of the most important functions of prosody is to divide the flow of speech into chunks. The chunking, or prosodic phrasing, of speech plays an important role in both the production and perception of speech. LÄS MER
3. Psychoacoustics and hallucinating schizophrenics. A psychobiological approach to schizophrenia
Sammanfattning : Psychoacoustic experiments have been conducted for schizophrenic patients with auditory hallucinations in their case history and for reference subjects. The aim of the thesis has been to assess differences between the two groups of subjects. LÄS MER
4. Sparse Modeling of Grouped Line Spectra
Sammanfattning : This licentiate thesis focuses on clustered parametric models for estimation of line spectra, when the spectral content of a signal source is assumed to exhibit some form of grouping. Different from previous parametric approaches, which generally require explicit knowledge of the model orders, this thesis exploits sparse modeling, where the orders are implicitly chosen. LÄS MER
5. Analyses of voice and glottographic signals in singing and speech
Sammanfattning : Recent advances in machine learning and time series analysis techniques have brought new perspectives to a great number of scientific fields. This thesis contributes applications of such techniques to voice analysis, in an attempt to extract information on the vibration of the vocal folds as such, as well as on the radiated acoustic signal. LÄS MER