> Soap opera effect is the effect you see when there is
> overly smooth motion on a high refresh rate display (usually LCD).
Smooth motion sounds like it would be a *good* thing? Closer to
what we see in real life.
> From film sources the source no longer looks "film like" and looks
> like something that has been shot with a hand held camcorder, but
> smoothed out.
By "hand held camcorder", do you mean that the image is bouncing
around in space?
If there is frame interpolation, presumably the algorithm is guessing
wrong about where objects are supposed to be, resulting in objects
appearing to be bouncing around in space.
>> The "soap opera effect" is a phrase used to describe the effects of
>> frame interpolationhttp://www.avsforum.com/avs-vb/showt...php?p=18414721
> I personally find it nauseating
Classic symptom of motion sickness. (Some people get headaches
instead of nausea.) In recent years more and more material has
excessive motion, excessive zooming/panning, etc. and can
induce motion sickness, even without computers generating bogus
intermediate frames using wild guesses.
2:3 pulldown telecine judder should have a similar effect to
this frame interpolation judder? The 2:3 judder would be
fairly constant, so perhaps the brain can get used to it to
some extent. Frame interpolation judder will be random, so
we can't get used to it at all.
> Something that people seem to forget is that a certain amount
> of flicker is normal from 24P film source, you will see this
> not only in film theaters but also at IMAX presentations,
> since they just speed up the 24P content an even number of times.
"Normal" films are double shuttered (48fps) to reduce flicker.
I'm not sure what IMAX does (triple?). Double/triple/whatever
shuttering would not reduce the "strobe light" jerkiness. I'm
sure there is some technical term for this, but I haven't found
it. Given all the money, effort, and technology that throw at
movies/TV these days, they really ought to increase the frame rate.
Frame interpolation would be a great way to eliminate the
blur from sample-and-hold, since it doesn't increase flicker.
Except that it will never be possible to get it right.
Since frame interpolation cannot work, it seems to me that
turning off the backlight while the LCD crystals are changing
their twist would be the best way to elimimate the blur from
sample-and-hold. Film projectors and CRT televisions have
been using this method for decades with good results.
Is there a list somewhere of LCD TVs/monitors that use the
turning off the backlight method?