Guogang Xiong

Learn More
In this paper, we present a novel method to detect two typical abnormal activities: pedestrain gathering and running. The method is based on the potential energy and kinetic energy. Reliable estimation of crowd density and crowd distribution are firstly introduced into the detection of anomalies. Estimation of crowd density is obtained from the image(More)
Acoustic source location is determined by the intersection of a set of hyperbolic curves defined by Time Difference of Arrival (TDOA). Many researchers consider that the closed-form solution of the intersection is cumbersome as the equations are nonlinear, so few researchers focus on solving the equations. However, we find that the closed-form solution can(More)
Reliable estimation of crowd density in public plays an important role on intelligent surveillance in recent years. There have been a lot of research on people counting; however, most of them only consider crowd with slight occlusions and their algorithms usually accompany with high computational complexity. In this paper, we present a simple model based on(More)
  • 1