Based on two-color detection system of “Sting” missile seeker, rosette scanning principle is introduced. The methods of target detection and recognition are analyzed to establish the model of target detection and recognition. The process for non-overlapped image scanning information transferred to two-dimensional image is discussed and application tactics of overlapped image mapping and target recognition methods are introduced. At the end, the simulation platform based on VC is established and rosette scanning results and target recognition application tactics when the IR flares dispensing and away from the target is tested respectively with IR flares mathematical model.