Abstract

Correlators are powerful shift-invariant object recognition systems that perform well in noise. However, they are quite sensitive to distortions between the input and reference object. Synthetic discriminant functions (SDFs) [1] accommodate intra-class distortions and provide interclass discrimination. In Section 2, we review these projection SDFs and note that they restrict only the peak point in the correlation plane. In Section 3, new correlation SDFs [2] are described. They control both the peak and sidelobe response and thus exhibit superior performance. Initial test data on these SDFs are presented in Section 4.

© 1985 Optical Society of America