Showing posts with label Grundfragen. Show all posts
Showing posts with label Grundfragen. Show all posts

Monday, January 25, 2010

Path finding algorithms


A nice article about AI pathfinding in modern AAA title computer games:
Don't worry, it does not contain any piece of source code.. lot of pictures, no hard math.

Thursday, October 1, 2009

GPS devices to monitor snowfall


A strange feeling is getting stronger and stronger in me: we are able to do anything, we already have the devices, it is only a question of creativity, manpower (engineers power of course), and time. We are just able to do anything.
Way back I read some news about earthquake detecting hard disks, and now this:
http://sciencenow.sciencemag.org/cgi/content/full/2009/929/2

Wednesday, August 5, 2009

Sexy Data

Recently I read a blogpost about the sexyness of handling huge datasets, being a statistican, etc.
You can find it here:
http://dataspora.com/blog/sexy-data-geeks/

I have some words to add, according to TLS.
It's quite nice to work with geodata.. For instance I was always impressed by sat images. (And everyone likes google maps.) Working with 3D pointclouds (of real buildings, statues, terrain, whatever), and making them useful is an interesting job.

Now to Data Munging: we have previous posts about working with coordinates (awk, especially), but thats only tip of the iceberg. You have to clean the 3D point cloud, remove not static objects (for instance cars and people on a street), take care about the correctness of the coordinates (1-2cm difference between two intersecting pointcloud is an everyday issue), uniting the intersecting point clouds to a bigger one, etc.

And yes, Visualisation. After creating a 3D model, you can put the real texture on it, with the help of some HD photos. After that you have a really nice object model. And thats just where the work starts!

After reading the beforementioned post, I've had the feeling that working with laser is sexy as well..

Sunday, November 16, 2008

Zurück in die Tiefe!

Was ich sehe, abtaste, kann ich gleichzeitig in einem virtuellen Raum darstellen. Speichern. Ausschalten.

Was machst du...?
Die Rohdaten verarbeiten. Modell erstellen. Die Frage ist immer gleich..... ob die Ergebnissen richtig und vollstandig sind........
Wenn man z.B. eine neue Filterung wahlt, der Abstand zwischen den Punkten ist anders, so bekommst du neues Modell bei der Vermaschung........ Visualisierung ist eine Art der Dokumentation, was man in Zukunft verwenden kann. Wie z.B. ein Gemalde aus dem 18. Jahrhundert über ein Gletscher, mit wem der frühere Zustand rekonstruierbar ist. 3D-Modell ist ahnlich wie ein Gemalde, nur bei dem Zeitraum (und so bei der Technoligie) findet man den Unterschied......:)

Nachstes mal reisen wir aus die tiefe Grube in die Höhe, wo "Herr Eis" lebt.....:)







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