View Full Version : High speed footage for free...kinda


knightly
10-17-2005, 05:52 PM
I just tested an interesting theory I had. Since so many folks de-interlace their DV footage anyway, I was wondering what they do with the extra fields. Then the physics hit me very suddenly. Each field recorded is actually a half resolution 1/60th of a second frame...i.e. 60 frames per second.

Here's how I turned this into usable 50% speed footage:

deinterlace odd fields, export to filename_odd.xxx image sequence
deinterlace even fields, export to filename_even.xxx image sequence

used applescript (I can post this if folks are interested) to rename them in an alternating fashion odd first as filename.xxxx

put them all into a timeline as a single frame still image each. Footage looked pretty cool....I'll post some tonight. I did the test with compressed footage, I'd like to see the quality with actual dv footage.

WideShot
10-17-2005, 06:07 PM
Sure but of course, now your footage is half res and slightly jaggy. Still, good thinking :) I'd love to get 50% overcrank with a dv camera.

Will Vincent
10-17-2005, 08:25 PM
You could just use something like REtimer (http://www.realviz.com/products/rtpro/index.php) (check out the gallery (http://www.realviz.com/gallery/list.php?product=rt))

knightly
10-17-2005, 09:23 PM
Here's the clip:

http://www.yafiunderground.com/Video/Reg.mov The DV version looks great, the MPEG-4 compression killed the final piece for some reason.

Reason to not use RETimer...price. Looks good though, like all their products. Beautiful, but expensive.

<edit>Oh yeah, I'm in the gray sweatshirt</edit>

Will Vincent
10-17-2005, 10:22 PM
That does look pretty decent, be interesting to see how it looks on a big screen. ;)

knightly
10-17-2005, 10:55 PM
Here's an h.264 encoded version of it, clarity is much higher:

http://www.yafiunderground.com/Video/Reg264.mov

knightly
05-29-2006, 08:43 PM
Here's a clip that was specifically shot to be torn apart like this:

http://www.yafiunderground.com/Video/shutter_test.mov

I shot this at 60i w/ a shutter speed of 1/120. I think it turned out quite well.