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Practical Image and Video Processing Using MATLAB
book

Practical Image and Video Processing Using MATLAB

by Oge Marques
September 2011
Beginner to intermediate
704 pages
15h 44m
English
Wiley-IEEE Press
Content preview from Practical Image and Video Processing Using MATLAB

Chapter 20

Video fundamentals

What Will We Learn?

  • What is an analog video raster and what are its main components and parameters?
  • What are the most popular analog TV and video standards?
  • What is digital video and how it differs from analog video?
  • What are the most popular digital video standards?
  • How is color information encoded in analog and digital video systems?
  • How can we read, manipulate, and play digital video files in MATLAB?

20.1 Basic Concepts and Terminology

In this section, we present a list of technical concepts and terms used in analog and digital TV and video systems.1 Similar to what we have done earlier (Section 1.2), this section is structured in a question-and-answer format in a sequence that starts with relatively simple concepts and builds up to more elaborated ones.

What is a Video Signal?

A video signal is a one-dimensional (1D) analog or digital signal varying over time whose spatiotemporal contents represent a sequence of images (or frames) according to a predefined scanning convention. Mathematically, a continuous (analog) video signal will be denoted by img, where t is the temporal variable.

An analog video signal refers to a 1D electrical signal img obtained by sampling in the vertical and temporal dimensions. A digital video signal is also sampled along the ...

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Publisher Resources

ISBN: 9781118093474Purchase Link