| Code |
16786
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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 |
TECNOLOGIA DIGITAL
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Entry requirements |
N/A
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Learning outcomes |
The general objectives of this curricular unit are the following:
1) Provide students with multimedia skills, in order to develop in students a critical and creative awareness of computing.
2) Provide students with basic skills/abilities in signal processing techniques in multimedia devices/systems.
Regarding the specific objectives, students should be able to:
1) explain how analog signals can be reasonably represented by discrete samples;
2) realize the trade-off between sampling frequency, quantization levels and file size.
3) describe the trade-offs between storing information versus storing enough information to reproduce the information;
4) describe the differences between lossy and lossless image compression techniques;
5) identify what are the basic algorithms that perform simple signal processing to remove noise, emphasize important features, etc.
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Syllabus |
1) Digital Signals: sampling, quantizing, and coding.
2) Sound, hearing, and music: sound and the ear; frequency, pitch, and harmony; digital audio formats and compression.
3) Visual perception: cones, rods, and the eye; color vision; color spaces and profiles; image formats and compression.
4) Animation: approaches to animation; perception in video and film; making animations; visualization.
5) Intensity transformations and spatial filtering.
6) Frequency domain processing: the Fourier representation; filtering in frequency domain.
7) Systems: linearity and time-invariance; impulse responses and convolution; spectral analysis; convolution.
8) Audio and image filtering: EQ; filter design; subtractive synthesis; echo and reverberation; resampling; two-dimensional convolution and image effects.
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Main Bibliography |
1) M. Pereira (2022), Sebenta em Multimédia, Universidade da Beira Interior.
2) I. Roxin et D. Mercier (2004), Multimédia: Les Fondamentaux, Vuibert Press.
3) E. Incerti (2003), Compression D'Image, Algorithmes et Standards, Vuibert Press.
4) K. Nahrstedt and R. Steinmetz (2008), Multimedia Fundamentals: Volume 1, Media Coding and Content Processing (2nd edition), Prentice Hall.
5) V. Costello (2016), Multimedia Foundations: Core Concepts for Digital Design 2nd Edition, Routledge Press.
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Teaching Methodologies and Assessment Criteria |
Continuous assessment:
- 3 individual programming assignments, each accompanied by a written questionnaire about the work done (10/3 points each)
- 1 exam (10 points)
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Language |
Portuguese. Tutorial support is available in English.
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