PT Chapter
AU Murad Al Haj
   Carles Fernandez
   Zhanwu Xiong
   Ivan Huerta
   Jordi Gonzalez
   Xavier Roca
TI Beyond the Static Camera: Issues and Trends in Active Vision
BT Visual Analysis of Humans: Looking at People
PY 2011
BP 11
EP 30
IS 2
DI 10.1007/978-0-85729-997-0_2
AB Maximizing both the area coverage and the resolution per target is highly desirable in many applications of computer vision. However, with a limited number of cameras viewing a scene, the two objectives are contradictory. This chapter is dedicated to active vision systems, trying to achieve a trade-off between these two aims and examining the use of high-level reasoning in such scenarios. The chapter starts by introducing different approaches to active cameras configurations. Later, a single active camera system to track a moving object is developed, offering the reader first-hand understanding of the issues involved. Another section discusses practical considerations in building an active vision platform, taking as an example a multi-camera system developed for a European project. The last section of the chapter reflects upon the future trends of using semantic factors to drive smartly coordinated active systems.
ER