Sökning: "multimedia"

Visar resultat 16 - 20 av 146 avhandlingar innehållade ordet multimedia.

1. 16. On Perception-Based Error Protection for Mobile Multimedia

   Författare :Muhammad Imran Iqbal; Blekinge Tekniska Högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Representation of multimedia requires large amounts of data. Therefore, multimedia source signals are compressed to reduce the data rate that would otherwise be required for its transmission. However, compression renders multimedia data more vulnerable to transmission errors. LÄS MER

3. 17. Security for IP multimedia applications over heterogeneous networks

   Författare :Elisabetta Carrara; Gerald Maguire; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telecommunication; Telekommunikation;

   Sammanfattning : Personal mobile multimedia services are rapidly become popular. They leverage the combination of mobile and Internet-based communications, the increased capabilities of the third generation of mobile communications (3G), and the flexibility of a common transport and service platform. LÄS MER

4. 18. A Holistic View of QoE for Multimedia Streaming

   Författare :Omer Nawaz; Markus Fiedler; Siamak Khatibi; Mirko Sužnjević; Blekinge Tekniska Högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; QoE metrics; Video quality assessments; AVC performance; mobile codecs efficiency; QoE IFs; Telekommunikationssystem; Telecommunication Systems;

   Sammanfattning : Internet access has evolved in the last decade with the availability of smart handheld devices and high bandwidth offered by mobile networks at reduced costs. Multimedia traffic primarily video became the main share of global Internet traffic due to the popularity of multimedia supported social applications, online gaming, and IPTV. LÄS MER

5. 19. Educational evaluation of an interactive multimedia learning platform : computerized educational platform in heat and power technology

   Författare :Vitali Fedulov; Torsten Fransson; Ambjörn Naeve; KTH; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; e-learning; computerized education; knowledge management; pedagogy; technology enhanced learning; Education; Pedagogik;

   Sammanfattning : Learning materials have multiple forms, such as books, overhead slides, computer files, blackboard notes by teachers, narration to the notes, video/audio tapes etc. Since the forms are highly inhomogeneous, it becomes difficult to collect and practically use them by a particular learner for individual study at home. LÄS MER

7. 20. Enabling Multimedia Services over Wireless Multi-Hop Networks

   Författare :Marcel Cavalcanti de Castro; Andreas Kassler; Torsten Braun; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Wireless Multi-hop Networks; Mobile Ad-hoc Networks; Wireless Mesh Networks; Voice over IP; Session Initiation Protocol; Peer-to-Peer Overlay Networks; Computer science; Datavetenskap; Datavetenskap; Computer Science;

   Sammanfattning : With the constant development of wireless technologies, the usageof wireless devices tends to increase even more in the future.Wireless multi-hop networks (WMNs) have emerged as a keytechnology to numerous potential scenarios, ranging from disasterrecovery to wireless broadband internet access. LÄS MER