A city generally consist of different ethnic minorities, it has complex system for housing, transportation, sanitation, utilities, land use and communication. Due to that, the criminals, traffic congestion, critical infrastructure damage, etc. might occur in the city. In this situation, government needs an advanced city surveillance system to ensure public security and make cities more intelligent.

A city generally consist of different ethnic minorities, it has complex system for housing, transportation, sanitation, utilities, land use and communication. Due to that, the criminals, traffic congestion, critical infrastructure damage, etc. might occur in the city. In this situation, government needs an advanced city surveillance system to ensure public security and make cities more intelligent.