blurry video: help please

[slinky2k2]

I am creating a video for a physics lab which involves a fast moving object. The video will be advanced frame by frame. However, in this way the object appears extremely blurry. I have been told it is due to interlacing. My question is: how do I deinterlace the video to elimate the blurriness (I am currently using Premiere 6)? Or are there any other ways to accomplish this? Thanks in advance.

[dinesh]

Note that fast moving objects always appear blurry when viewed frame by frame, and is not attributed to interlacing. Interlacing is when you see horizontal lines on your frame with previous and next frame overlapping and is common only with NTSC video.

[slinky2k2]

Right. Maybe I worded my question wrong. It's not the blurriness of the object that is the concern; the main problem is that it appears as if there are 2 seperate objects, both blurry and displaced from each other. From what I understand (and I could be wrong) this is a result of a seperate image of the object being formed on the even and odd lines. By deinterlacing, one of these can be eliminated. Is this correct? I know I can deinterlace it from Premiere, but I can't seem to get it to work.

[dphirschler]

What you are seeing is probaly interlacing as well as Telecining (or 3:2 Pulldown). Telecining is the process of converting ~24fps film to ~30fps video. The term 'telecine' comes from 'television' and 'cinema'. Every three frames has two duplicate frames, and they are interlaced so that they can be blended smoothly.

To remove the Telecine/3:2 Pulldown, use the 'Telecide' filter in Virtual Dub. Then in TMPGenc, use the "Inverse Telecine" filter to remove the extra frames.

There are other ways (AVIsynth Telecide & Decimate), but they are more difficult and I haven't figured it out yet.

Of course I am assuming you are capturing at ___x480. If not, you should be. Capturing at ___x240 just blurs the fields together.


Darryl