Multimedia architectures

A.Y. 2020/2021
Overall hours
Learning objectives
The course aims at presenting digital models and systems for the processing, coding, storage, retrieval and distribution of multimedia information (texts, images, audio, video). The course deals with issues about the analysis, design and synchronization of complex multimedia applications as well as research and development activities in this field will be discussed.
Expected learning outcomes
The students will acquire the necessary knowledge for managing multimedia information and developing related architectures for the storage and communication of images, audio and video. In addition, students will develop high-level analytical and operational skills for the development of complex multi-disciplinary applications.
Course syllabus and organization

Single session

Lesson period
Second semester
The lessons were delivered on the ZOOM platform giving students the opportunity to follow the lessons synchronously on the basis of the timetable for the second semester.

Distance examinations are carried out with the use of the platform: MOODLE + SEB + WEBCONFERENCE

During the exam to monitor the students, they are asked to activate the ZOOM web conference application on their smartphone and access the meeting by following the instructions provided a few days before the exam.
Course syllabus
Introduction. Multimedia and digital communication

ORDBMs and ORDBMS in Oracle

Digital texts.Boolean Retrieval Model, Vector Space Model, Probabilistic Model, Semantic Networks
Text IR vs database systems --> Oracle Text
Text IR system --> Sorl

Question Answering
Design of Conversational Experience with DialogFlow

Digital images. Human perception of color. Color models. Data compression. Standards for digital image encoding.
Image IR vs database systems --> Oracle Multimedia
Image Retrieval: from pixels to the semantic space

Digital audio. Sampling, quantization, signal to noise ratio. Standards for digital audio encoding: WAV, AIFF. Audio compression. Elements of psychoacoustics, critical bands, spatial and temporal masking.

Digital video. Video color models. Video compression,predictive coding, motion vectors. Standards for digital video encoding.
Audio-video IR vs database systems --> Oracle Multimedia

Operating systems issues for continuous media. Synchronization of multimedia data. Quality of service. Real-time scheduling. File systems for continuous media. Real-time network protocols

Multimedia information systems. Content description. Languages for metadata: MPEG-7.

Multimedia applications design. Multimedia authoring systems.
Prerequisites for admission
Teaching methods
Through the ZOOM platform, the lessons were delivered synchronously with discussions and presentations of case study.
Practical works
Teaching Resources
Slides of the lectures.
In the slides are reported books, articles websites useful both for studying and insights.
Basic Readings:
- Z. Li, M. Drew. Fundamentals of Multimedia, Pearson Educational, 2004
- Multimedia Applications. In B. Fuhrt (ed), Handbook of Internet Computing, CRC Press, 2000
Assessment methods and Criteria
Methods of verification are:
1. Written test
2. Oral test, Thematic Deepening, Project (optional)

The evaluation criteria of the written test concern:
- Knowledge of the content
- Adherence of the response to the track
- Ability to make connections
- The relevance of the contents in relation to the question

The evaluation criteria of the oral test/thematic deepening/project concern:
- the focus of the issue
- logical rigour and use of technical language
- fairness and clarity of exposure
- The critical awareness, personal interpretation skills, richness and relevance of the oral presentation
INF/01 - INFORMATICS - University credits: 6
Lessons: 48 hours
Professor: Valtolina Stefano
On appointment
office in via Celoria, 20 - Settore Didattico - Building 3 - Last Floor