Notes about this test video:
- Filmed in Patterson Park Baltimore, May 7, 2010
- No audio in this version
- Maps more opaque
- Add informational text overlay (stop for water, name of trail, trail highlights, bathroom)
- Parks & People just completed an audio tour- hope to use this or other audio tours in the future.
- More shaking can be removed.
Ignite Baltimore 6 is 108 days away. At this event I will be presenting the results of the quickexplore project.
The geeky technical details after the jump:
The raw footage shot of paterson park was 11 minutes shot in Cannon's AVCHD/MTS format and was around 1GB. There are several deshaker / image stabilizer software packages on the market that range from a price of free to $1k+. The version that I have found works best for this particular application is the free deshaker for virtualdub. There are several things to note about this solution:
Results and usability for short videos is amazing. See this sample
Virtualdub requires using uncompressed or very old style compression techniques. This 11 minute video took over a hundred gigs of space and several hours of time and interaction to properly transcode.
This isn't a solution unless you have $2,500 in desktop computing hardware or a half that and 4 times the amount of free time.
What are the needs?
- 1-3 frames per second (frame math below)
- High shutter speeds to capture an image even with gitter
- I would like 1080p resolutions
- Switch to a point and shoot camera
- Use a fixed focal length and high shutter speed (similar to scripts used in high altitude ariel balloon photography)
- Use a gorilla pod to hold a cannon point and shoot - Locked in with lots of zip ties
Previous source footage for 25 mile ride: 70 minutes, 4,200 seconds source or ~126,000 frames
This means I have WAY too much data
1 fps over 4,200 seconds would leave me short of the 9,000 frame goal.
I Would prefer to have 3fps but that requires a lot more batter, a much better camrea and more processing time. Time for more testing.
File size calculations for new point and shoot method: Using canon SD870
Medium mode creates 278kB files
~2.5GB for 9,000 frames