Security system and method for estimation of intrusion by an object in a space

Abstract

A security system () and method () for estimation of intrusion by an object () in a space () are provided. The security system comprises a processor (), configured to obtain information of the illumination of a first subspace () of the space having a first level of illumination, I, within a first light intensity interval, R, and to obtain information of the illumination of a second subspace () of the space, being spatially separated from the first subspace and having a second level of illumination, I, within a second light intensity interval, R, wherein max (R)<min (R), a sensor () communicatively coupled to the processor, wherein the sensor is configured to detect motion of the object, wherein the processor is configured to estimate a first level of probability, LP, of intrusion by the object in the space based on a detected motion of the object, by the sensor, in the first subspace; estimate a second level of probability, LP, of intrusion by the at least one object in the space based on a detected motion of the at least one object, by the at least one sensor, in at least one of the at least one second subspace, wherein LP>LP.