ghosting effect

[GrAnD]

Captured a video fragment using VirtualDub from TV (NTSC) at 480x480 using MJPEG software codec and found that some of fields contains ghosting effects.
Here is an example:
Full frame:


First field:

Second field:


I didn't use any of filters or stuff like that during the capture.
Is there any way to get rid of these ghosting things?

Thanks.

[kinneera]

You're seeing interlacing, which can be eliminated using a deinterlacing filter.

[GrAnD]

In my example the full frame has an interlace effect. But there is only _one_ field on the second picture. And this field has a ghosting effect. Deinterlace works only when your deal with 2 fields in one frame.
Hot to fix the picture if one field looks ok, but another one has a ghosting effect? If I'm doing a deinterlace (smart deinterlace in VirtualDub for instance) I can remove interlace artifacts, but "ghosting" is still shows up.
Any ideas?