Sökning: "HMM"

Visar resultat 1 - 5 av 32 avhandlingar innehållade ordet HMM.

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

    Detta är en avhandling från Umeå : Tillämpad fysik och elektronik

    Författare :Hung Son Le; Umeå universitet.; [2008]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; face recognition; pattern recognition; computer vision; HMM; Hidden Markov Models; contrast enhancement; pyramid fusion; image processing; TECHNOLOGY Information technology Computer science; TEKNIKVETENSKAP Informationsteknik 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

  2. 2. Hidden Markov Models: Identification, Inverse Filtering and Applications

    Detta är en avhandling från KTH Royal Institute of Technology

    Författare :Robert Mattila; Bo Wahlberg; Cristian R. Rojas; John Lygeros; Jan H. van Schuppen; Tobias Rydén; Ayca Özcelikkale; [2020]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hidden Markov models; HMM; inverse filtering; identification; estimation; method of moments; counter-adversarial autonomous systems; adversarial signal processing; belief estimation; abdominal aortic aneurysm; medical; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : A hidden Markov model (HMM) comprises a state with Markovian dynamics that is hidden in the sense that it can only be observed via a noisy sensor. This thesis considers three themes in relation to HMMs, namely, identification, inverse filtering and applications. LÄS MER

  3. 3. Novel Approaches to ECG-Based Modeling and Characterization of Atrial Fibrillation

    Detta är en avhandling från KTH Royal Institute of Technology

    Författare :Frida Sandberg; [2010]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HMM; ECG; Biomedical Signal Processing; Time-Frequency Analysis; Atrial Fibrillation; Sample Entropy; AV modeling;

    Sammanfattning : This thesis deals with signal processing algorithms for analysis of the electrocardiogram (ECG) during atrial fibrillation (AF). Such analysis can be used for diagnosing patients, and for monitoring and predicting their response to various treatment. LÄS MER

  4. 4. Efficient Methods for Automatic Speech Recognition

    Detta är en avhandling från Stockholm : KTH

    Författare :Alexander Seward; KTH.; [2003]
    Nyckelord :speech recognition; algorithms; hidden markov models; HMM; weigted finite-state transducers;

    Sammanfattning : This thesis presents work in the area of automatic speech recognition (ASR). The thesis focuses on methods for increasing the efficiency of speech recognition systems and on techniques for efficient representation of different types of knowledge in the decoding process. LÄS MER

  5. 5. Analysis and Applications of the Heterogeneous Multiscale Methods for Multiscale Elliptic and Hyperbolic Partial Differential Equations

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

    Författare :Doghonay Arjmand; KTH.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Multiscale Methods; HMM; Multiscale Wave Equation; Multiscale Elliptic Equation; Long Time Wave Propagation; SRA - E-Science SeRC ; SRA - E-vetenskap SeRC ;

    Sammanfattning : This thesis concerns the applications and analysis of the Heterogeneous Multiscale methods (HMM) for Multiscale Elliptic and Hyperbolic Partial Differential Equations. We have gathered the main contributions in two papers. LÄS MER