Interlaced vs Deinterlaced Footage

In todays session we were shown a Powerpoint  looking at  compression and how to output using different codec's.

When preparing footage for viewing there is one key thing to consider, where the footage is going to be viewed. This falls into 2 categories:

• TV: Footage needs to be interlaced
  
• Visual Display Units (VDU's):  Footage needs to be deinterlaced

If you dont use the correct format, you wont get the best quality material on the chosen output. For example, interlaced footage on a DVU will be blurred and can look like a double image, wheras deinterlaced will be clearer and sharper.

A clear way to illustrate the difference is in the following images, with footage from Finding Neverland. Both clips have been paused at the same point (give or take a few milliseconds), the snapshot on the LEFT has been deinterlaced, whereas the one on the RIGHT is still interlaced.
The noticeable difference here is motion blur.

A further thing to consider when editing is the gamma setting on the display unit, this is different between Macs and PC's, this means the image will be brighter. The image on the left shows the setting on a Mac and the right hand image shows the equivalent on a PC.