... information related to a semantic classchange is used as a weight for possible candidate targets; thisis done considering that a transition from a semantic classSCbto another class SC a has a ... the target has similar colour to the back-ground. Moreover, as a detection of the thermal radiation ofthe target, the IR information can be manageably acquiredon a 24-hour basis, under suitable ... similarpatternDBF1,iF2,iF3,i···Fn,kF1,kF2,kF3,k···Fn,iFigure 5: Automatic target search supported by a reference databaseand driven by the semantic class feature to restrict the number ofrecords.In order to obtain a global similarity measure, each...