489 Samuel Nájera Bailón Spacial analysis of video surveillance... EFFECTIVENESS Data base Fields of vision Tactical response Generic Detailed Estimation Real Existing field Operation Auxiliary sys Ip server Local Provider id Personal id Variable Static models by approximation lockdown evacuation • lockdown evacuation Determination of specific fields for specific situations _____________________________________________________________________________ Since we have considered (a) databases, (b) fields of vision and (c) a tactical response to be fundamental fields, their dovetailed interconnection can only be encouraged. Whilst they are currently perceived to be three separate isolated systems, their synthesis would bring about an exponential reduction in terms of time. Nonetheless, in order to make the model suggested more pragmatic, a further step is required. The thickest line illustrates the route taken by this study, while the thinner line shows the route that should be taken. A route, the current one, which without nominal information (information that may be accessed exclusively by judicial or institutional means) means that the present strategic component is insufficient. Thus, in order to complete the model, collaboration between law enforcement bodies is required. By accounting for complete provision of the requisite nominal information and the express desire for collaboration amongst the parties involved, the estimated time for the traceability of a subject/object is estimated on the basis of a nodal system by way of exclusion. For the area to be analysed, this should not exceed the proportionality ratio of 1:5 (5 minutes of searching for every minute that the subject remains on public highways), whereas the current reality is closer to 1:72 or higher. This ratio can be considered to be 1:48 for Boston and estimated at 1:160 for London. This therefore represents a significant improvement compared with the current situation. http://revista.ieee.es/index.php/ieee
REVISTA IEEE 5
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