69494 - MULTIMEDIA SERVICES AND APPLICATIONS M

Conoscenze e abilità da conseguire

At the end of this course, the student will have knowledge of the main mechanisms and techniques for efficiently represent, transmit and manage multimedia contents by focusing on the main standards for voice, audio, image, video compression, on multimedia communication and networking protocols (VoIP, RTP), multimedia content distribution, cloud computing and multimedia services.

Contenuti

• Notes on Information Theory and Source Coding: Definition of Information, Entropy, Lossless and Lossy Coding.
• Image Compression: Image representations, JPEG Standard.
• Video Compression: Motion Compensation Techniques, H.261, H.263, MPEG-1, MPEG-2, H.264 (aka AVC), H.265 (aka HEVC).
• Audio Compression: Basic of Digital Audio, Waveform Coding, Perceptive Coding (Vocoders, MPEG Audio (MP3)).
• Multimedia Protocols: Multimedia Broadcasting (MPEG Transport Stream, MPEG Program Stream), Media Transport (RTP/RTCP), Session Description Protocol (SDP), QoS management in IP Networks (DiffServ, IntServ).
• Multimedia Streaming Services: QoS for streaming services; Technologies (Caching, Content Distribution Networks, Multicast, Adaptive HTTP Streaming) and Architectures (Netflix, IPTV).
• Multimedia Interactive Services: QoS for voice services;VoIP (SIP, Mobile VoIP, IP Multimedia Subsystem, VoLTE)

Testi/Bibliografia

• Z.-N. Li, M. S. Drew, and J. Liu, "Fundamentals of Multimedia", 3rd Edition, Springer Nature Switzerland, 2021
• Hans W. Barz and Gregory A. Basset, "Multimedia Networks: Protocols, Design and Applications", Wiley, March 2016
• L. Sun, I.-H. Mkwawa, E. Jammeh, and E. Ifeachor, "Guide to Voice and Video over IP - For Fixed and Mobile Networks", Springer International Publishing, 2013
• J. F. Kurose, and K. W. Ross "Computer Networking: A Top-down Approach", 8th Edition, Pearson, 2021
• Additional material distributed in class

Metodi didattici

Frontal lectures in classroom

Modalità di verifica e valutazione dell'apprendimento

The assessment will be performed through a written test and an oral presentation.

The written exam will be composed of both open and closed questions with around 12 questions. The time is 90 minutes. For the oral presentation students have the possibility to focus on a specific topic. Each student is asked to prepare a high-level (survey/tutorial style) presentation for end of April (5 minutes each). One day will be devoted to students presentation and discussion. Each student prepares a specific presentation for the final exam discussing one the selected topic with more details. During the final exam we will discuss also on the written test about possible mistakes

Students not attending the course: the final exam will be based on the discussion of the errors in the written test with limited additional score.

Strumenti a supporto della didattica

Use of slides during the lessons.

Orario di ricevimento

Consulta il sito web di Daniele Tarchi