Now, Look Fabulous in a Movie With the Help of a New Software

How you look on video can now be manipulated with the help of a new software.

Developed by Christian Theobalt of the Max Planck Institute for Informatics in Saarbrucken, Germany, and colleagues, it allows professional and amateur moviemakers to dramatically alter how muscular, leggy or heavy people appear on film, reports New Scientist.

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Until now laborious frame-by-frame retouching could only do this.

Theobalt's team began by generating 3D scans of 120 men and women of varying size and shape in a range of poses. By merging the scans, they were able to create a single model that could be morphed from any body shape or pose to any other.

Turning to the video sequence containing the actor whose shape they wish to manipulate, the team uses a mix of off-the-shelf and bespoke software to track the actor's silhouette through the scene.

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The software then maps the silhouette onto the morphable model, and tweaks it to generate the required height, weight, leg length or muscularity.

The technology has obvious applications in films like Raging Bull, for which Robert de Niro put on 27 kilograms in two months to portray his character.

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"The actor wouldn't need to go to all that trouble," said Theobalt.

It could also be a cost-saver for advertising companies. Because standards of beauty vary across cultures, it is the norm to shoot several adverts for a single product. With the new software, firms could make one film and tweak the model's dimensions to suit different countries.

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Although the results are realistic, extreme alterations slightly distort a film's background.

To find out whether this is distracting, Theobalt's team asked 15 people to view an unaltered video while 15 others watched a version in which the actor's body shape had been tweaked.

There was no significant difference between the numbers of distortions the two groups reported, suggesting that this distortion will not unduly worry audiences.

The work would be unveiled in December at the computer graphics conference Siggraph Asia in Seoul, South Korea.

Source-ANI