An interactive training software
designed to teach users tying a necktie

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communicated through an action game

A game for children on a Multi-touch table

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digital pets for fair visitors

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through cutting pieces out of a block.

Collaborative game where verbal
communication is necessary to win

iTie

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My Solution
iTie uses the built-in camera of modern laptops to display the user inside the software, and to track the user's face and necktie.
On top of the camera-image a virtual necktie is projected. According to the user's face-position the virtual necktie is projected where also the real necktie usually rests. The virtual necktie than instructs the user step by step in tying the knot.
At this the virtual necktie animates only one step at a time, and than waits for the user to mimic the move.

The virtual necktie will only move on with the next step when the user's real necktie laps over with the virtual one. This process loops until the user is good to go.

1.
The user's necktie is in the same position like the virtual necktie.

2.
The virtual necktie moves fluently to the next position and waits for the user to follow.

3.
The user overlaps with the virtual necktie again and gets positive feedback that he is in the correct position.

Technical details
Camera tracking is often restricted due to harsh lighting conditions and fast movements. Therefore iTie only tracks the colored area covered by the virtual necktie. This facilitates the tracking process and increases robustness of the algorythm. Thanks to Michael Nischt for his technical advise in computer vision related questions!