The use of cameras is growing: not only personal computers and laptops are standard equipped with a camera, but also the public domain is increasingly equipped with cameras. Today's camera is not merely a pair of eyes. A surveillance camera can see much more than a single person can do. The rapid proliferation …

This chapter discusses the concept of sensitive environments. Sensitive environments are essentially spatial and public areas like streets or school that are provided with an intelligent infrastructure that collects sensory information of users while they move and interact. Such sensitive environments …