Proceedings of SPIE - the International Society for Optical Engineering
Using an optical correlator, we experimentally evaluated a binary phase-only filter (BPOF) designed to recognize objects not in the training set used to design the filter. Such a filter is essential for recognizing objects from actual sensors. We used an approach that is as descriptive as a BPOF yet robust to object and background variations of an unknown or nonrepeatable type. We generated our filter by comparing the values of spatial frequencies of a training set. Our filter was easily calculated and offered potentially superior performance to other correlation filters.
Kozaitis, S. P., & Foor, W. E. (1993). Feature-based correlation filters for object recognition. Paper presented at the Proceedings of SPIE - the International Society for Optical Engineering, , 1790 104-111.