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11-22-2005, 04:23 PM
| | Junior Member Windows Movie Maker | | Join Date: Nov 2005
Posts: 2
| |  fine-tuning motion of high-speed captured videos
hello! I'm new to this forum and I also know very little of video editing. My problem is the following: I have recorded facial expressions videos with a high-speed digital camera that captures up to 500 frames per second! Clearly, I have a lot of added information that can't reasonably be viewed in real motion, but I have to approximate real-time motion as much as possible. Above all, what I look for, is that the changement appear smooth and absolutely not jerky. How I can do that?
Currently, I am doing the following: I import up to 600 static TIFF in adobe after effects, and then I export them to make a movie, setting the speed of the composition at 60 fps or more.
But the movement is jerky. How can ameliorate this?
Is it possible with after effects?
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11-22-2005, 05:26 PM
|  | Administrator | | Join Date: Nov 2003 Location: Kent
Posts: 8,572
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I probably won't be able to answer, but to give people a better understanding of what you're doing, could you explain why you used a high speed camera? Typically this would be for ultra-slow motion playback.
60fps of uncompressed footage would also playback choppy on an underperfoming system regardless of inputs. Did you compress at all?
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11-23-2005, 07:40 AM
| | Junior Member Windows Movie Maker | | Join Date: Nov 2005
Posts: 2
| | high speed motion
I do use an high-speed camera for the purpose of behavioral study in psychology. I would like to explore how the EXAXT temporal parameters of a naturally displayed facial expression do affect recognition judgments of the same expression. Thus, I will have subjects viewing facial expression movies recorded at 500 fps, which means, videos displaying as much information as possible concerning what happens when producing a facial expression..but I need to speed up the movement a bit, preserving smoothness and information, so that the subjects'sensation while watching the videos would not be too unnatural and confusing with respect to the real world scenes!
I hope someone will give me some useful advice..
thanks!
C
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11-24-2005, 10:30 AM
|  | Super Moderator | | Join Date: Feb 2004 Location: Bracknell, Berkshire, UK
Posts: 4,613
| | Re: fine-tuning motion of high-speed captured videos
Quote: |
Originally Posted by Chiara Fiorentini Currently, I am doing the following: I import up to 600 static TIFF in adobe after effects, and then I export them to make a movie, setting the speed of the composition at 60 fps or more.
But the movement is jerky. How can ameliorate this?
Is it possible with after effects? | Have you tried including some motion blur?
__________________
I'm not young enough to know everything! |
11-24-2005, 11:18 AM
| | Administrator | | Join Date: Nov 2003 Location: Kent
Posts: 8,572
| |
To be perfectly honest, I can't see how using more than 25fps is going to provide much more detail than 500fps to the naked eye. You'll also run into problems playing back on a TV.
As I say, unless you're going to slow the motion down I don't really see there being an advantage to the ultra high frame rate.
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