Interessante, que o Jacob tem pesquisa vinculada.

• The Hand Mouse: GMM hand-color classification and mean shifttracking (2001)
• VP : Toward A Vision-Based Mobile Input Interface For Anywhere
• Fingermouse: A wearable hand tracking system (2002)
• DiamondTouch: A Multi-User Touch Technology (2003)
• Multi-finger Cursor Techniques (2006)

Approaches: >1 cameras (3D), with markers (colors etc.), infrared

• Visual tracking of high DOF articulated structures: an application to human hand tracking (1994)
• A usable real-time 3D hand tracker (1994)
• Real-time hand tracking and gesture recognition using smart snakes (1995)
• DigitEyes: vision-based hand tracking for human-computerinteraction (1999)
• Fast tracking of hands and fingertips in infrared images for augmented desk interface (2000)
• Hand tracking for human-computer interaction with Graylevel VisualGlove: turning back to the simple way (2001)
• Real-Time Fingertip Tracking and Gesture Recognition (2002)
• SmartSkin - An Infrastructure for Freehand Manipulation on Interactive Surfaces (2002)
• The perceptive workbench: Computer-vision-based gesture tracking, object tracking, and 3D (2003)
• Real-time Hand Tracking and Finger Tracking for Interaction
• Real time hand tracking by combining particle filtering and mean shift (2004)
• Fast 2D Hand Tracking with Flocks of Features and Multi-Cue Integration (2004)
• Visual Touchpad: A Two-handed Gestural Input Device (2004)

Characteristics: Two cameras.

• Automatic 2D Hand Tracking in Video Sequences (2005)
• Interacting with large displays from a distance with vision-tracked multi-finger gestural input (2005)

Characteristics: Two-handed, two cameras, black input area (with id tag), gestures, based on Visual Touchpad.

Well, there is no lack of publications in this field…