Optical Implementation of Segmented Composite Filtering
Résumé
We investigate possible performance improvements of coherent optical correlators by using an appropriate filter design. Multidecision strategies are often required in high-level image-processing tasks. For an optical system characterized by a given space–bandwidth product we show that the filter design plays a crucial role in satisfying both system and processing requirements, with respect to the optimization of the encoding capacity. This leads us to the definition of segmented composite filtering, which is discussed in terms of processing performance. This filtering is assessed experimentally in the case of a face-recognition problem. © 1999 Optical Society of America
Mots clés
Signal Processing
Image Processing
Opto-electronic
Encoding/Decoding
Compression
Decompression
encryption
Independent Components Analyses (ICA)
Optical correlation
recognition forms
Information Processing
Diffractive optics
Digital Holography
Fourier transform
polarized light
Composite filter
POF
VLC
JTC