MULTIMEDIA E LABORATORIO

Learning Objectives

• Multimedia

  Become an expert in multimedia systems: images, audio and video.

  General learning objectives in terms of expected learning outcomes.

  Knowledge and understanding: The aim of the course is to acquire knowledge that will enable the student to understand the theoretical and physical mechanisms underlying the human visual system, the formation and processing of sound, video and digital images, enhancing the visual quality of digital images and audio quality.
  Ability to apply knowledge and understanding: the student will acquire the skills needed to acquire, edit, compress and save a viedeo audio signal. Particularly a part of the course will be related to the study of Matlab software to apply such theoretical knowledge.
  Making judgments: Through examples in the classroom, the student will be put into the condition of understanding whether the solutions offered by him meet a certain degree of quality.
  Communication skills: The student will acquire the necessary communication skills and technical language skills in the multimedia field.
  Learning Skills: The aim of the course is to provide the student with the necessary theoretical and practical methodologies to deal with and solve new problems that arise during a work activity. To this end, several topics will be addressed in lesson by involving the student in the search for possible solutions to real problems.

• Multimedia Laboratory

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Detailed Course Content

• Multimedia

  Evaluating the quality of an image. Objective and subjective criteria. PSNR, SSIM, Delta E in CIE L* a* b*.
  Raster and vector image formats. Image formats: BMP, PNG, TIFF, GIF. Compression and Coding: Huffman, Golomb, Arithmetic.
  LZW, differential, RLE, code-based encodings, based on the symbols on the bit plane. Encrypt using the transform.
  Transformed Haar, Fourier, DCT.
  The mathematical morphology applied to the images.
  The mathematical morphology applied to the images in gray scale.
  restoring images. Noise patterns
  Arithmetic, geometric, harmonic and harmonic media filters. Median filter, minimum, maximum, midpoint, alpha-trimmed. Adaptive Filters. Periodic noise. Removing noise in the frequency domain. Notch filter. Wiener filter.
  Filtering in Spatial Domain. Edge detector. Canny Algorithm. Filtering in the frequency domain. Stress filtering. Homomorphic filtering. Hough transformed.
  Segmenting Images
  Digital Audio: Definition of sound and sound, wavelengths, Fourier series.
  Digital Audio: Sound frequency, audible spectrum, pure and complex tones, music notes, diapason, refraction, reflection and diffraction of sound waves, echo, reverb.
  Digital Audio: Doppler effect, amplitude of sounds, decibels, decibels SPL and SIL, envelope, spectrum of sounds, colorful noises.
  Digital Audio: Analog audio, sampling and quantization of audio signals, SNR and SQNR, digital audio formats, PCM and u-law encoding.
  Digital Audio: A-law encoding, other types of encoding, digital audio representation and time domain processing (volume, envelope and effects modification).
  Digital Audio: Classroom Workshop: Matlab implementation of audio processing algorithms.
  Digital Video: Aspect Ratio; Resolution; Interlacing; Analog and digital transmission and recording formats.
  Digital Video: Analog-Digital Conversion; Part II - Common Registry, Artifact and Drop Errors; Part III - Projections of 3D and 2D space, CAHV model, Matlab lab on the projections, introduction to the most common motion areas.
  Digital Video: Matlab Laboratory: Comparison of Ideal and Empirical Motion Fields, Calculation and Visual Analysis of Generic Motion Fields. 4-Parameter and 6-Parametric Camera Movement Models. Motion Estimator Criterion: Displaced Frame Difference. Block matching algorithms: exhaustive and three-step search. Feature matching algorithms: FAST.
  Digital Video: Stabilization. Digital Stabilization Systems: Motion Vector Integration, Frame Position Smoothing and Kalman Filtering; Examples of image deformation and chromatic stabilization. Matlab Laboratory: motion detection with background subtraction; application example of the Kalman filter; example of video stabilization application using FAST algorithm.
  Digital Video: MPEG-1, MPEG-2, MPEG-4, H.264 video formats. 3D Scan - laser scanning (triangulation, structured light, flight time, photographs): hardware, methods and examples.

• Multimedia Laboratory

  Practial aspects of some arguments related to the MM field.

Textbook Information

• Multimedia

  Digital Image Processing, Third Edition, Rafael C. Gonzalez, Richard E. Woods, Ediz. Pearson, Prentice Hall

  Audio e multimedia 3 ed., di Lombardo, Valle, Apogeo ISBN: 9788850327621

• Multimedia Laboratory

  Digital Image Processing - Gonzalez, Woods - Pearson, 2007