Here is the description of the concepts outlined in the chart:
"If all of them belong to the “gesture control” world, the best segmentation is made from 4 categories:
Finger tracking: precise finger tracking, it can be single touch or multi-touch (this latest not always being a plus). Finger tracking also encompasses hand tracking which comes, for LM3LABS products, as a gestures.
Body tracking: using one’s body as a pointing device. Body tracking can be associated to “passive” interactivity (users are engaged without their decision to be) or “active” interactivity like 3D Feel where “players” use their body to interact with content.
Face tracking: using user face as a pointing device. It can be mono user or multiple users. Face tracking is a “passive” interactivity tool for engaging user in an interactive relationship with digital content.
Image Tracking: Augmented Reality (AR) lets users use images (flyers, real products, t-shirts, faces,…) to interact with digital content. AR can be markerless or marker-based. Markerless technology has advantages but marker-based AR is easier for users to understand. (Please note here that Markerless AR is made in close collaboration with AR leader Total Immersion)." -LM3LABS
If you are interested in this subject and want to view some good examples of off-the-desktop interfaces and interactions, take a look at the LM3LABS blog, as well as Nicolas Loeillot's Vimeo channel.
interactive balloons from Nicolas Loeillot on Vimeo.
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