Horizontal noise bars - what are they called, and how to remove?

[johnmeyer]

I finished the project. The attached photo shows the same frame as in my post #1, but with the improved version on the right.

I ended up using Defreq, and got some help with the settings from "jagabo" over in the Videohelp.com forum. Here is the script I used:

loadPlugin("C:\Program Files\AviSynth 2.5\plugins\defreq.dll")
AVISource("E:\fs.avi").KillAudio().converttoYV12(interlaced=true).AssumeTFF()
tfm()
source = tdecimate(cycle=10,cycleR=2)
TurnRight(source)
defreq(fx=16.6, fy=0.0, dx=2, dy=2, sharp=0, info=false, show=0)
defreq(fx=49.4, fy=0, dx=2, dy=1, sharp=0, info=false, show=0)
TurnLeft()
output = aWarpSharp(depth=5).Sharpen(0.3)
return output

#Alternate output, for debugging
#interleave (source,output)
#stackhorizontal (source,output)

I also did some dirt removal, stabilization, some additional sharpening, and color correction, the last one in order to reduce the reddish hue.

It's not perfect (you'll see some residual banding, if you look for it, but it is a LOT easier to watch.