Trevor Harris
Forum Replies Created
-
All I’m trying to do is animate a skew effect with the motion trackers to compensate for the skew added by the camera.
-
Anyone? Whenever I use stabilize motion, all I have is 2 points to track with.
-
How do you stabilize motion with 4 points?
-
Close. I didn’t zoom it in by hand, I just let the motion tracker handle that when I stabilized the motion. But I did zoom it in a little bit more after that because my friend’s head kept coming into the shot right at the bottom.
I’m using a Canon VIXIA HF100 HD camcorder which uses the AVCHD codec (ugh…) and it records onto a SDHC card. I exported the animation as a JPG sequence, and I used that.
The skewing I’m talking about… hmmm… very hard to describe, the footage was shot at a high shutter speed, so there’s pretty much no motion blur, but instead there’s this strange skewing that almost seems to take over for the motion blur. It sort of skews back in the direction the camera just moved from. It only does it when the camera is moving fast (and I disabled the camera’s built in stabilizer). Well by ‘moving fast’ I mean rotating fast.
I’ve uploaded a part of the video. This has been stabilized. It looks like it’s just bumpy, but if you look closely, you’ll see it’s actually skewing. https://www.megaupload.com/?d=2W02T5ZE
-
I can’t really take a screenshot of it since it’s more of a temporal thing. It skews differently on every frame (enough to where it looks REALLY bad).
Normally, I wouldn’t go with a digital zoom, but I filmed at 1080p, and the final product will be 480p. I’m just being careful not to zoom in more than 225%.