All entries for Friday 23 February 2007

February 23, 2007

Junction Detection

Recently I have been focusing on detection of junctions and end points on a raster network. It is suprisingly difficult, but I have something that works nicely on test images.
Junctions Sample
The parameters the algorithm uses seem to be quite sensitive at the moment, this mainly due to the point grouping function. I need to come up with a more stable point grouper…

However, with the junction detector working vectorising a network is simple a case of line following out of one junction until reaching another!

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