"Optical filter fusion for object detection"

No one algorithm is felt to be appropriate for detection. Thus to achieve this, first and most important, and most computationally intensive operation in image processing, we consider the use of several detection algorithms and fusion of their outputs to reduce false alarms PFA while retaining high detection rates P/sub D/. The detection algorithms must be shift-invariant, since multiple objects can be present and since object location is not known. Thus, correlation filters are attractive (they are shift-invariant and provide processing gain).