the most typical face on the planet - compositing images

I would have love to watch the process of compositing the image, it doesn't show in this short clip.

Briefly, this video is about the most typical face on the planet.

Here's what the article says:

"National Geographic Magazine released a video clip, below, showing the most "typical" human face on the planet as part of its series on the human racecalled "Population 7 billion."

The researchers conclude that a male, 28-year-old Han Chinese man is the most typical person on the planet. There are 9 million of them.

The image above is a composite of nearly 200,000 photos of men who fit that description.

Don't get used to the results, however. Within 20 years, the most typical person will reside in India."

You can check out the video below:

7 Billion: Are You Typical? — National Geographic Magazine @ Yahoo! Video