VIDEO SURVEILLANCE BASED ON RISK MAP

Recently, the use of Closed Circuit Television Cameras (CCTV) in public areas has increased rapidly. CCTV camera has become a crucial instrument for crime control and has enhanced the safety of publics. CCTV camera also helps in reducing crime as it can provide evidences to solve criminal cases. Furthermore, CCTV camera is used to monitor highway traffic, to assess the scene of an accident and other public safety purposes. However, due to improper and ineffective guidelines on CCTV camera installation in public area, it is uncertain if there is sufficient coverage by the CCTV camera. Instead of a robust approach, the adequacy of CCTV coverage is often determined based on design experience and trial-and-error. Inadequacy coverage will further limit the efficient combination of control and display equipment, as well as the operators’ ability to manage the video surveillance system. Therefore, a 2-Dimensional risk mapping on a typical urban town is proposed. This is to ensure and verify the strategic placement of CCTV camera, providing the utmost and complete coverage within the public areas. The risk mapping is performed in accordance to the risk analysis on the study area. Mapping technique is applied to the study area and CCTV camera coverage area is computed. The optimal placement of CCTV camera is determined by analysing the coverage index and adequacy coverage index. The experimental results recommend a total of twenty-seven CCTV cameras placements on the town model which have successfully achieved the minimum requirements of coverage and adequacy coverage index.