Search for dissertations about: "Predictive Coding"

Showing result 1 - 5 of 23 swedish dissertations containing the words Predictive Coding.

  2. 1. Interframe quantization of spectrum parameters in speech coding

    Author : Jan Lindén; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; spectrum coding; memory vector quantization; interframe coding; speech coding; channel optimized vector quantization; linear predictive vector quantization; finite state vector quantization; line spectrum frequencies;

    Abstract : .... READ MORE

  4. 2. On codebook driven speech coding

    Author : Anders Bergström; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Vector quantization VQ ; glottal CELP coders; code excited linear predictive CELP coders; Speech coding; vector excited linear predictive coders;

    Abstract : .... READ MORE

  5. 3. Source and Channel Coding for Audiovisual Communication Systems

    Author : Moo Young Kim; Bastiaan Kleijn; Richard Heusdens; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telekommunikation; Information theory; high-rate theory; source coding; channel coding; quantization; Telekommunikation; Telecommunication; Telekommunikation;

    Abstract : Topics in source and channel coding for audiovisual communication systems are studied. The goal of source coding is to represent a source with the lowest possible rate to achieve a particular distortion, or with the lowest possible distortion at a given rate. Channel coding adds redundancy to quantized source information to recover channel errors. READ MORE

  6. 4. On Robust LPC-spectrum Coding and Vector Quantization

    Author : Roar Hagen; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; robustness against channel noise; LPC-spectrum coding; vector quantization; speech coding; linear mapping of a block code;

    Abstract : Digital speech coding is concerned with representing a discrete-time speech signal with as few bits per second as possible without introducing annoying artifacts in the coded speech. Many modern speech coders are based on Linear Predictive Coding (LPC) which employ a source-filter model for speech production. READ MORE

  7. 5. New predictive and diagnostic biomarkers for preeclampsia

    Author : Ulrik Dolberg Anderson; Lund Obstetrik och gynekologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : Abstract Preeclampsia is a serious pregnancy complication that affects 3-8% of all pregnancies leading to maternal- and fetal morbidity and mortality. The etiology is still not known in detail. Previous findings have shown an up regulation of the genes coding for fetal hemoglobin (HbF) in preeclamptic placentas. READ MORE