Real-Time Hand Tracking as a User Input Device

Comments

Franck

Manoj

Summary

The authors sought to create an easy-to-use and inexpensive system that facilitates 3D articulated user-input using the hands. THe system optically tracks an ordinary cloth glove that has a specific pattern on it. This simplifies the pose estimation problem. First, they construct a database of synthetically generated hand poses. These images are normalized and downsampled to a small size. THey do the same for a queried image from the camera. They use it to look up the nearest neighbor pose in the database, by defining a distance metric between two tiny images. They chose a Hausdorff-like distance to do this.

Analysis

I agree this is a cost effective method of tracking the hand. I am uncertain about the way they choose to measure the distance metrics they use. Well, I don't know anything about them so I do not know the efficiencies of those methods.