“…In practice, omnidirectional cameras are often utilized in many applications, like autonomous mobile robot (Yagi et al, 2005), video conference (Wallhoff et al, 2004), military purpose (Boult et al, 2001), virtual reality (Ikeuchi et al, 2004), collaboration with PTZ camera (Scotti et al, 2005) (Scotti et al, 2004), visual tracking. The techniques for detection and tracking using an omnidirectional camera can be grouped into two categories, one in warping space and the other in unwarping space.…”