MULTIMEDIA COMMUNICATIONS
Academic year and teacher
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- Versione italiana
- Academic year
- 2011/2012
- Teacher
- CHIARA TADDIA
- Credits
- 6
- Didactic period
- Secondo Semestre
- SSD
- ING-INF/03
Training objectives
- Multimedia system technologies for data, audio. images and video.
Prerequisites
- Telecommunication networks
Course programme
- Multimedia system and information representation. Multimedia networks. Multimedia applications. Digitalization principle. Text and hypertext. Images: scanner, fax, colors, raster. Audio: PCM, CD, MIDI. Video: television (luminance, crhominance, etc) , 4:2:2, 4:2:0, HDTV, SIF, CIF, QCIF. Compression basics, entropy, differential coding, transformation coding. Text compression: static Huffman, synamic Huffman, arithmetic coding, Lempel-Zip, Lempel-Zip-Welsh. Image compression: GIF, TIFF, FAX group 3 e 4, JPEG. Audio compression: DPCM, DPCM adattativi (G.721 G.722), adaprove predictive compression, predictive linear coding LPC, LPC with excited CELP, psycoacustic coding models, MPEG, Dolby AC-1 AC-2 AC-3. Video compression: principle, I, P, B and D frames, H.261, H.263, MPEG-1, MPEG-2, MPEG-4, channel error robustness. TCP/IP. Circuit switching: H.320, H.324, H.321, H.310, H.322. Packet switching: H.323, IETF. Examples: Email, Web. Advanced examples: movie/video on demand. Multicast: routing e IGMP. RTP e RTCP. QoS: Integrated services, Differentiated services. Internet telephony. SIP, SDP, GLP. SNMP ideas. ATM cells. ATM switching. ATM Adaptation layer e QoS: AAL1, AAL2, AAL3/4. LAN and MAN based on ATM. URL and http. HTML (Form, CGI, PHP). Streaming on web browser
Didactic methods
- Theoretical/practical lessons.
Learning assessment procedures
- Written/oral examination.
Reference texts
- G. Mazzini, C. Taddia, Comunicazioni Multimediali, Pitagora Editrice Bologna
