Document Type
Conference Proceeding
Publication Title
Proceedings of SPIE - the International Society for Optical Engineering
Abstract
A version of an image consisting of multiple wavelet scales allows for more flexible feature extraction when compared to the use of one wavelet scale. We proposed an imaging system based on a multiple-input joint-transform correlator, that could be used for multiple wavelet-scale analysis of an input image. Given a single input image and wavelet, for m wavelet scales, m versions of the wavelet and m copies of the input image were generated using conventional optics that are used as inputs to a joint wavelet-transform correlator. The output consisted of 4 m - 1 correlation results, one of which is the desired output. The space-bandwidth product of the system is the same as for a conventional two-input joint-transform correlator.
First Page
109
Last Page
119
DOI
10.1117/12.277625
Publication Date
7-1-1997
Recommended Citation
Kozaitis, S. P., Getbehead, M. A., & Foor, W. E. (1997). Joint-transform correlator architecture for wavelet feature extraction. Paper presented at the Proceedings of SPIE - the International Society for Optical Engineering, , 3075 109-119.