video camera aircraft

[Frankman]

A video camera is on an aircraft, recording perpendicular to earth. The film then shows a slowly moving earth (sometimes it shakes a little). The camera output is 525lines interlaced (60 fields per sec. / 30 frames per sec.). The film looks quite good.

My problem:

I need only one optimized image nearly every 2 seconds.

At the moment I record the output with a S-VHS recorder (not the best idea, I know). After recording I capture frames every 2 seconds from VHS tape (Hauppauge WinTV Theater). These frames show interlaced comb effects, because objects are moving (ca. 10m between 2 fields). To have a better result I deinterlaced the single frames with a virtualdub plugin (different ones tested). Due to deinterlace I loose resolution, thats bad.

Would it be possible to capture single fields every 1/60 sec and then overlay 2 fields (after motion compensation)?

Or what else would be a good idea for one optimized image? May be some averaging with multiple frames/fields?

Thank you
Frank

[SLK001]

You won't be able to really get rid of the interlace effects with your current camera, and I don't think you'll ever be really happy with motion compensation on that video.

What you need is either a better video camera, or a digital still camera, or a regular film camera.