This carpet can feel exactly what you're doing on it using only tactile sensors

MIT CSAIL are testing an intelligent carpet that accurately estimates three-dimensional human poses using only tactile sensors. The long-term goal is to use this system for health monitoring purposes, like rehabilitation and fall detection.

Source : http://feeds.mashable.com/~r/Mashable/~3/8XWJSuu2J5g/-intelligent-tactile-carpet-mit-csail