|
The selection of effective sensors and signal processing techniques is
a topic worthy of at least two graduate level courses alone. One of
the most important decisions is in how to measure the context of
interest; can the context be extracted from low-bandwidth sensors
using relatively simple techniques, or are more expensive and complex
approaches required?
For example, if the context of interest is "talking to Bob," a number
of sensing strategies are possible. Cameras and expensive
computer vision techniques may be employed, or (if the situation is
appropriate) a simple low-bandwidth tag and tag-reader might solve the
problem.
|
