| Code |
14814
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| Year |
2
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| Semester |
S1
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| ECTS Credits |
6
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| Workload |
PL(30H)/T(30H)
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| Scientific area |
Informatics
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Entry requirements |
NA
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Learning outcomes |
Explain in general terms how analog signals can be reasonably represented by discrete samples, for ?example, how images can be represented by pixels.
Describe color models and their use in graphics display devices.
Describe the tradeoffs between storing information vs. storing enough information to reproduce the ?information, as in the difference between vector and raster rendering.
Explain how the limits of human perception affect choices about the digital representation of analog ?signals.
Describe the differences between lossy and lossless image compression techniques, for example as ?reflected in common graphics image file formats such as JPG, PNG, GIF MP3, MPEG.
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Syllabus |
• Digitization of analog data, resolution, and the limits of human perception, e.g., pixels for visual display, dots for laser printers, and samples for audio.
• Color models and their use in graphics display devices.
• Tradeoffs between storing data and re-computing data as embodied by vector and raster representations of ?images .
• Animation as a sequence of still images.
• Standard media formats, including lossless and lossy formats.
• Streams/structures, capture/represent/transform, spaces/domains, compression/coding ?
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Main Bibliography |
Sebenta: Multimédia Manuela Pereira, 2017.
Multimédia e Tecnologias Interativas, Nuno Ribeiro, FCA Editora de Informática, Lda.
Tecnologias de Compressão Multimédia, Nuno Ribeiro e José´ Torres, FCA Editora de Informática, 2009.
Multimédia: Les Fondamentaux, Ion Roxin, Daniel Mercier, Vuibert.
Compression D'Image, Algorithmes et standards, Eric Incerti, Vuibert.
Multimedia: Computing, Communications & Applications, R. Steinmet, and K. Nahrstedt, Prentice Hall, 1995. (ISBN: 0133244350)
Multimedia Fundamentals: Volume 1, Media Coding and Content Processing, 2nd Edition , R. Steinmetz, K. Nahrstedt, Prentice Hall, 2002. (ISBN: 0130313998)
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Teaching Methodologies and Assessment Criteria |
Learning activities are based on theoretical classes and practical classes. The theoretical classes are to present the concepts, i.e., to analyze, evaluate and discuss the key concepts. The practical classes are to learn how to represent, manipulate and process different types of multimedia data.
The assessment is made through 2 test (10 values each).
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Language |
Portuguese. Tutorial support is available in English.
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