Impatica Knowledgebase

KB-000358: Should I de-interlace my video?

PAL, NTSC, and SECAM video are all interlaced and should ideally be de-interlaced at some stage during video capture/creation/edit processing.

The time to de-interlace is when you have your raw captured DV footage in the editor and you are doing the first export for Impatica (or to any file intended to be viewed on a computer).

After the footage has been saved in the deinterlaced format you would disable deinterlace if you were to edit it again.

To enable deinterlacing from Adobe Premiere go to Export Movie Settings > Special Processing. Click Modify and select the Deinterlace checkbox.

Select the Better resize checkbox too. It takes a little longer, but the results are a little better.

If your video processing application doesn't support deinterlacing then you run the risk of introducing 'interlacing blurs' into your videos (see example screen captures). These 'blurs' will be especially prevalent during high motion sections of your captured footage (e.g speaker/presenter gesticulations and indications etc)

Where video processing applications do not support deinterlacing they are usually still fine for editing the raw DV footage -- as long as you are saving footage back in the DV format.

QuickTime Pro does support deinterlacing and should open most if not all DV files.

So, once again, deinterlace your raw capture footage when you first export to a format for use on a computer.

Disable deinterlace if you are editing and exporting previously deinterlaced footage.

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