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Industrial site/public place/traffic route remote surveillance system having current image reference image compared with block transformation measuring spatial activity providing digital intrusion signal/reference comparing.
Industrial site/public place/traffic route remote surveillance system having current image reference image compared with block transformation measuring spatial activity providing digital intrusion signal/reference comparing.
The video camera surveillance system subtracts pixel by pixel the current image from a reference image. A block transform is carried out producing transformed coefficients, and obtaining a spatial activity measure over the resultant image. A digital intrusion signal is found and compared with a reference intrusion detection level (12).
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