Comparison Update

I also included the variance images

Just a quali comparison

In this messy gallery it is possible to take a quick look at the first comparison between radar and video timex. Nothing fancy yet, but the similarity between the records is very encouraging.

More of this waffle here

Two step forward, take one back

This is a summary of this week's events.

After running the code over the weekend to rectify the video, and doing the same for the radar, I found that my images were not aligned. Misregistration anyone? So I had to go back and figure out what the problem was (or were).

I think I solved all of them, so here is the summary:

VIDEO

1. First, it was pretty obvious that the GCPs were not on the right spot on the rectified images. Then it struck me that they are all at different Z-levels. Once I included this correction, the GCPs were they should be, when looking in the plan view (Euclidean Plane).
2. Which lead me to the idea to include the tide data in order to rectify at the right Z-level.
3. I had forgot that we have 5 cameras, so now I included the south of the pier as well. Sadly, it seems that Camera 2 does not have geometry solutions, so it will not provide data. But Camera 4 is ok.
4. I recoded my functions and they are running. Probably it will take the whole weekend.

RADAR

This baby was lingering in space with no other atachment point than the pier, which is a radial feature, which makes things more complicated.

Since the cartesian data (the one rectified using the dungle) has a somewhat arbitrary orientation, I used the pier as reference to find the zero-heading of the antenna and the doughnut size. I think I achieved a good agreement using heading=-7 deg and a doughnut of 88 pixels.

This is a sample image, from run 2701215, showing the timex of the first 14 seconds (10 frames), with the pier oriented almost along a uniform y value. Also, it seems that the GCP at the end of the pier is well matched.




The cubes are going to be reconstructed using the binary files and taking care to interpolate to a uniform grid using the actual azimuths recorded by the A*.TXT file.

We will see how it goes come monday, I hope.