Lee Lassen – Visual Computing Lab https://viscomp.alexandra.dk Computer Graphics, Computer Vision and High Performance Computing Tue, 20 Sep 2016 11:56:23 +0000 en-GB hourly 1 https://wordpress.org/?v=5.8.2 Boat-tracking at “Sejerøbugten” https://viscomp.alexandra.dk/?p=3822 https://viscomp.alexandra.dk/?p=3822#respond Fri, 13 Feb 2015 12:55:20 +0000 http://viscomp.alexandra.dk/?p=3822 As part of our collaboration with the Institute of Bioscience. We have been asked to create a small program that is able to track and register the amount of boats passing through part of Sejerøbugten. There is a radar placed on Nekselø which generates pictures like this every 3 minutes.

radar-image

As you might notice there is a lot of noise in the image so a basic mask is created to subtract the ground. To help identify moving objects a trail is added between signals (If you look at the center of the radar and to the left, you should see a red dot, with a blue “tail” – this is a boat). By filtering out the noise and masking the image correctly, in this case using OpenCV – we can track overlaps of these “tails” and in that way show the path that the boat traveled.

 

tracking

 

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