Chapter 2. Digital Images and Video
Advances in ultra-high-definition and 3D-video technologies as well as high-speed Internet and mobile computing have led to the introduction of new video services.
Digital images and video refer to 2D or 3D still and moving (time-varying) visual information, respectively. A still image is a 2D/3D spatial distribution of intensity that is constant with respect to time. A video is a 3D/4D spatio-temporal intensity pattern, i.e., a spatial-intensity pattern that varies with time. Another term commonly used for video is image sequence, since a video is represented by a time sequence of still images (pictures). The spatio-temporal intensity pattern of this time sequence of images is ordered into a 1D analog or digital ...
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