Sökning: "Source coding"
Visar resultat 21 - 25 av 99 avhandlingar innehållade orden Source coding.
21. Control over Low-Rate Noisy Channels
Sammanfattning : Networked embedded control systems are present almost everywhere. A recent trendis to introduce radio communication in these systems to increase mobility and flex-ibility. LÄS MER
22. Quantization, Perception and Speech Coding
Sammanfattning : This thesis is about compression of speech signals, a research area known as speech coding. The aim of a speech coder is to provide efficient digital representations of speech signals, required in digital transmission and storage systems. Contemporary speech coding algorithms typically separate the speech signal into sets of parameters. LÄS MER
23. Joint source and channel coding using combined TCQ and CPM schemes
Sammanfattning : .... LÄS MER
24. Preferential Coding for Mobile Multimedia Services
Sammanfattning : Different parts of source encoded multimedia streams such as those associated with standard image or video formats possess different levels of importance with respect to their contribution to the quality of the reconstructed image or video. This unequal importance among data within a codestream gives rise to preferential treatment of the more significant parts of the codestream compared to the less important parts. LÄS MER
25. Model Based Speech Enhancement and Coding
Sammanfattning : In mobile speech communication, adverse conditions, such as noisy acoustic environments and unreliable network connections, may severely degrade the intelligibility and natural- ness of the received speech quality, and increase the listening effort. This thesis focuses on countermeasures based on statistical signal processing techniques. LÄS MER