O'Reilly logo

Multidimensional Signal, Image, and Video Processing and Coding, 2nd Edition by John W. Woods

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 2

Sampling in Two Dimensions

In two- and higher-dimensional signal processing, sampling and the underlying continuous-space play a bigger role than in 1-D signal processing. This is due to the fact that some digital images, and many digital videos, are undersampled. When working with motion in video, half-pixel accuracy is often the minimal accuracy needed. Also there is a variety of sampling possible in space that does not exist in the case of the 1-D time axis. We start out with the so-called rectangular sampling theorem, and then move on to more general but still regular sampling patterns and their corresponding sampling theorems. An example of a regular nonrectangular grid is the hexagonal array of light-receptive cones on the human ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required