Removal of comb effect from video

Contact person: Dmitriy S. Vatolin (dmitriy@graphics.cs.msu.ru)

MSU Graphics & Media Lab (Video Group)

The filter is designed to suppress comb effect, also known as interlacing, in motion pictures. As opposed to other available filters, MSU Deinterlacing
uses a balanced combination of 8 filters to ensure better picture quality.

Examples

We shall compare MSU Deinterlacing Filter to Smart Deinterlace (one of the best available filters written by Donald Graft) using 3 test sequences.

The first example is frame No. 9 from Helicopter sequence.

Frame 9 from ''helicopter'' sequence A fragment of the frame
The fragment processed by MSU Deinterlacing The fragment processed by Smart Deinterlace

It's easy to see that image feature outlined in red looks much better on the left picture. Smart Deinterlace made it blocky, while MSU Deinterlacing did
better job at image reconstruction.

The next example:


A frame from ''flag'' sequence

The frame processed by MSU Deinterlacing he frame processed by Smart Deinterlace

Consider fragment of the frame:

The frame processed by MSU Deinterlacing he frame processed by Smart Deinterlace

The next example is fragment of frame No. 92 from Schumacher sequence.


Frame 92 from ''shumacher' sequence

The frame processed by MSU Deinterlacing he frame processed by Smart Deinterlace

Frames from sequences tennis & mobl:
AlparySoft, Decomb and MSU SMC deinterlacer.

Frames from sequences tennis & mobl: AlparySoft, Decomb and MSU SMC deinterlacer.


AlparySoft, Decomb, MSU comparison


AlparySoft, Decomb, MSU comparison

Download

This filter was developed from October 2002 to May 2003 by group and from May 2003 in collaboration with SAIT (Samsung Advanced Institute of Technology) so currently filter is unavalable due to contract limitations.
Deinterlacing filters comparison on tennis (DivX 4, 1.4Mb)
Deinterlacing filters comparison on mobl (DivX 4, 1.8Mb)

See also

Detailed description of MSU Deinterlacing filter

Team

  • Dmitriy S. Vatolin, Lomonosov Moscow State University
  • Denis Kubasov
  • Sergey Putilin
  • Maxim Maxinya