A First Course in Electrical and Computer Engineering by Louis Scharf & Louis Scharf

Author:Louis Scharf & Louis Scharf [Scharf, Louis]
Language: eng
Format: epub

Suppose there are n such endpoints in the entire image. Each point is included only once, even if several lines end at the same point. We can arrange the vectors P i into a point matrix:

(5.4)

We then store the point matrix G ∈ R2xn as a two-dimensional array in computer memory.

Example 5.2.

Consider the list of points

(5.5)

The corresponding point matrix is

(5.6)

Line Matrix. The next thing we need to know is which pairs of points to connect with lines. To store this information for m lines, we will use a line matrix, H ∈ R2 × m . The line matrix does not store line locations directly. Rather, it contains references to the points stored in G . To indicate a line between points p i and p j , we store the indices i and j as a pair. For the k th line in the image, we have the pair

(5.7)

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