Sökning: "multiple description coding"

Visar resultat 6 - 10 av 11 avhandlingar innehållade orden multiple description coding.

1. 6. Distribution Preserving Quantization

   Författare :Minyue Li; W. Bastiaan Kleijn; Jan Østergaard; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telecommunication; Telekommunikation;

   Sammanfattning : In the lossy coding of perceptually relevant signals, such as sound and images, the ultimate goal is to achieve good perceived quality of the reconstructed signal, under a constraint on the bit-rate. Conventional methodologies focus either on a rate-distortion optimization or on the preservation of signal features. LÄS MER

3. 7. Robust Multimedia Communications over Packet Networks

   Författare :Guoqiang Zhang; W. Bastiaan Kleijn; Vinay Vaishampayan; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telecommunication; Telekommunikation;

   Sammanfattning : Multimedia communications over packet networks, and in particular the voice over IP (VoIP) application, have become an integral part of society. However, the unreliable and heterogeneous nature of packet networks has led to a best-effort delivery of services. LÄS MER

4. 8. An Ontological Approach to Safety Analysis of Safety-Critical Systems

   Författare :Jiale Zhou; Kristina Lundqvist; Ibrahim Habli; Mälardalens högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hazard analysis; ontologies; safety-critical systems; safety requirements elicitation; Computer Science; datavetenskap;

   Sammanfattning : Safety-critical systems (SCSs) have become an intrinsic part of human dailylife in multiple domains, such as automotive, avionics, and rail industries. Such systems are not only required to implement the functionality they should provide, but also have to satisfy a set of safety requirements in order to ensure the mitigation of hazardous consequences. LÄS MER

5. 9. The role of hnRNP A1 and hnRNP C1/C2 in the regulation of the stress responsive genes Cyp2a5/2A6 and p53

   Författare :Kyle Christian; Matti Lang; Françoise Raffalli-Mathieu; Kirsi Vähägangas; Uppsala universitet; []
   Nyckelord :Molecular biology; hnRNP; Tumor Suppressor Protein p53; CYP2A5; CYP2A6; Apoptosis; hnRNP C Proteins; hnRNP protein A1; Cancer; Molekylärbiologi;

   Sammanfattning : The family of proteins known as heterogeneous nuclear ribonucleoproteins (hnRNPs) is large and diverse. Often, one and the same hnRNP will perform multiple cellular functions, leading to their description as “multifunctional proteins”. LÄS MER

7. 10. Internet Video Transmission

   Författare :György Dan; Gunnar Karlsson; Viktória Fodor; Jean-Yves Le Boudec; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Traffic control; MDC; FEC; Multicast streaming; Queuing theory; Telecommunication; Telekommunikation;

   Sammanfattning : The Internet has rapidly evolved from being a scientific experiment to a commercial network connecting millions of hosts that carries traffic generated by a large amount of applications with diverse requirements. Its architecture was however designed to enable efficient point-to-point delivery of bulk data, and can not provide statistical guarantees on the timely delivery of delay sensitive data such as streaming and real-time multimedia. LÄS MER