Welcome Guest ( Log In | Register )


Important

The forums will be closing permanently the weekend of March 15th. Please see the notice in the announcements forum for details.

 
Capture Progressive Frames?
« Next Oldest | Next Newest » Track this topic | Email this topic | Print this topic
Datawraith
Posted: Dec 15 2011, 10:00 AM


Member


Group: Members
Posts: 15
Member No.: 27222
Joined: 17-March 10



This is probably a dumb question to ask, but is it possible to capture progressive video? I noticed a long time ago that every so often, there will be groups of frames that look sharp and non-interlaced.

What if I match the capture frame rate to the source video? I spent a very long time using deinterlacing filters, but the video quality suffers. (I'm not using them wrong). I would like to not have to worry about interlaced video.

If VirtualDub cannot do it, does anyone know of any software that can?
 
     Top
Abrazo
Posted: Dec 15 2011, 08:46 PM


Advanced Member


Group: Members
Posts: 775
Member No.: 28995
Joined: 5-November 10



I think it all depends of the video source.

If it generates interlaced video (50 half images per second = alternating images with the odd lines and the even lines of the video), than your capturing device will merge the lines of every two consecutive images and make 1 complete image of it. So you become 25 images per second.

Some videos are really made of progressive images, so your capturing device will capture every complete image, one at a time, also making 25 fps.

When you capture interlaced video you will mostly see problems when there are (fast) moving objects in the video, and not when there is almost no movement at all.

So, whether you capture it with VirtualDub or another capturing software, it will not make much difference.

At post-processing the captured video, it is still possible to make something better of it.

If you like to read something about it : http://www.100fps.com.
 
     Top
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
1 replies since Dec 15 2011, 10:00 AM Track this topic | Email this topic | Print this topic

<< Back to Capture