In some cases there are videos that have had their frame rates increased by adding frames where the software has done a basic averaging of the pixel data between two frames, not with motion interpolation, and not even just duplication of frames.
The presence of these frames can ruin the interpolation more than duplicated frames.
If there was a filter that could detect and remove/replace these kinds of frames, that would make frame interpolation work better.
do you do deinterlace? in most occasions i deinterlace using QTGMC at this point and then i do whatever upscale i want
I’m not referring to interlaced video. The video can be progressive, and if someone has put it through software that will raise the frame rate, some of the new frames it generates might be a simple averaging of the two frames before and after. And these frames mess with the interpolation.
Some software will just duplicate frames, and that’s easy to detect and remove. But blended (through averaging) frames would likely be somewhat more difficult.
Depending on what the original and adjusted frame rate is, it could be 1 blended frame every 3, 4, 5, or 6 frames or whatever.
