Processing of Multimedia Signals

• 26 hrs lectures
• 26 hrs pc labs

Basic knowledge and skills in digital signal and image processing with particular emphasis to procedures applied to multimedia data in internet applications.

The course should provide the student with the basic theoretical knowledge and practical experience from the area of digital signal and image processing, analysis, communication and archiving. The knowledge is necessary for multimedia data processing in information networks, for analysis and interpretation of the data and in communication applications.

Basic knowledge from computer signal and image processing.

• V.K. Madisetti, D.B. Williams: The Digital Signal Processing Handbook (chapts: Digital Audio Communications, Speech Processing, Image and Video Processing), CRC Press & IEEE Press, 1998
• R.J. Schalkoff: Digital Image Processing and Computer Vision, J.Willey & Sons 1989
• A.N. Netravalli, B.G. Haskell: Digital Pictures Representation, Compression and Standards. Plenum Press, 1995
• S.J. Sangwine, R.E.N. Horne: The Colour Image Processing Handbook. Chapman & Hall, 1998
• V. Bhaskaran, K.Konstantinides: Image and Video Compression Standards (2nd ed.), Kluwer Acad. Publishers, 1997
• B. Furth, J. Greenberg, R. Westwater: Motion Estimation Algorithms for Video Compression. Kluwer Acad. Publishers, 1997
• Jan, J.: Číslicová filtrace, analýza a restaurace signálu (druhé rozšířené vydání), VUTIUM Brno 2002
• A.K. Jain: Fundamentals of Digital Image Processing. Prentice Hall 1989
• M. Šonka, V. Hlaváč, R.D. Boyl: Image Processing, Analysis and Machine Vision, 2nd ed. PWS Boston 1998
• A.C. Luther: Principles of Digital Audio and Video. Artech House Boston 1997
• Levický, D.: Multimediálne telekomunikácie. Elfa Košice, 2002
• Jan, J.: Medical Image Processing, Reconstruction and Restoration. CRC Publ., 2005

• Properties of digital signal-processing methods in comparison with analogue processing
• Digital linear filtering, purpose, properties, specification of demands
• IIR and FIR filters - basic properties, computer aided design and realisation
• Averaging methods of enhancing signals in noise
• Complex signals and frequency translation of signals
• Correlation analysis of signals, correlation detection. Applications for system identification
• Spectral analysis of deterministic and stochastic signals, applications
• Introduction to detection and restoration of distorted signals in noise
• Generalisation of the above methods for processing of images as 2D signals
• Basic methods of reconstruction, enhancement, edition and segmentation of images
• Principles of signal- and image-data compression
• Typical uses of the methods in processing multimedia and medical signals and measurement data
• Standard types of signal and image files. Typical approaches to multimedia use in information networks and for archiving

• Design, testing and application of a linear filter with given specifications. Generating and consequential averaging of a repetitive signal in noise
• Simulation of SSB frequency translation of a signal with the use of analytic signal
• Correlation analysis of mixtures of useful and disturbing signals, correlation reception
• Acquisition and frequency analysis of speech and musical signal. Compression standard MP3
• Acquisition of image data, archiving and presentation. Standards of image data. Geometric operations with images.
• Contrast and colour transforms in images. Sharpening and guided noise reduction
• Preparation of multimedia data for web page presentation

Study evaluation is based on marks obtained for specified items. Minimimum number of marks to pass is 50.

Obtaining at least 15 points from the computer-labs.

Active participation in the computer-lab tutorials is checked, the minimum participation 4 out of 7 tutorials, cannot be substituted