Planetary Data Workshop

2 Weeks ago I had the pleasure of going to Flagstaff AZ for the Planetary Data Workshop. It was a conference for scientists to express their needs and for engineer types to discuss their solutions. As can be guessed from the name, our topics were the dispersal, the processing, and the tools used for scientific imagery of the planets in our solar system (primarily from NASA’s robotic missions).

I was at the conference to discuss my software product, Ames Stereo Pipeline. I gave two talks and eventually they’ll be available on YouTube. I also gave an hour long tutorial that is now online. It’s the video above. I’m not sure how interesting it is to watch but it was a lot of fun performing the tutorial. I now realize how much of a nerd I sound like. I ended up throwing away my prepared HiRISE and LRO-NAC imagery. The crowd that attended seemed more interested in the mass processing of CTX imagery. I, unfortunately, did not have any CTX data on my laptop. Instead, I asked Fred Calef from JPL for a CTX stereo pair that he wanted processed. To my benefit, ASP v2 processed it autonomously without hassle during the demo! My laptop managed to chunk through the data in 15 minutes. I spent most of the tutorial just talking about the ancillary files and what users can look into to see if their output will turn out all right.

Shooting from the hip for a tutorial could have bitten me pretty badly. But I think ASP really has improved a lot and is ready for mass production environments. I’m trying to push for one for earth polar imagery but there are many more datasets that could have this same treatment. I think that idea became clear to the 30 guests who attended my tutorial. We’ve had an uptick in downloads and I hope that means I’ll be seeing some cool 3D models in the future.

Sidenote:  I found out that Jay Laura from Penn State has a blog going called Spatially Unadjusted. He’s a GIS guy who also uses ASP (Aww yeah). He presented a poster on his experience of using ASP v1.0.5 for LRO-NAC imagery.

Fly by Night application of ASP to Video

This is a video of horizontal disparity from a video stereo rig onboard the International Space Station. Specifically it was this camera. I used ffmpeg to split up the data into individual frames and then I applied ASP to the individual frames. I attempted solving for the focal length and convergence angle of this set but unfortunately I didn’t properly constrain focal length. (My algorithm cheated an brought its error to zero by focusing on infinity). Regardless, I’m pretty happy with the result from a Tuesday night at home.