Deinterlacing methods (I)

Blending

Also called Average or Combine Fields, this method overlaps the two fields and blends them together.

The main advantages of this method are speed and simplicity. Any average computer can do it in real time, therefore it's suitable for capturing video and deinterlacing at the same time.

The blending method is very good at deinterlacing video sequences with little movement such as talk shows or presentations. However, consider using another method, if you have the time: when movement occurs, the image may become blurry or foggy, because of the blending.

Weave

This method is also called Do Nothing because is consists in simply showing both fields at once.

Naturally, processing is very fast because there is almost no processing performed, the video height remains the same but also the mice teeth.

The method is typically used when the video contains both interlaced and deinterlaced material, when some sequences don't have to be deinterlaced.

Discarding Fields

Also called Single Field Mode, this method consists of completely removing one field from the frame.

There is obviously less quality because half of the information is lost, however the image will still be sharper than using the blending method and the video will be easier to compress. In quiet scenes some sharpness is lost and the video will be less fluid, in some areas it will stutter.

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