Multifractional correlation is proposed that is based on a new generalized fractional Fourier transform to which we refer as a multifractional Fourier transform. The multifractional correlation yields remarkable improvements in the correlation output peak intensity, peak sharpness, and light efficiency compared with convention correlation, which uses matched and phase-only filters, and still maintains better target discrimination capability and a reasonable robustness to noise. An optoelectronic hybrid system that can implement the multifractional correlation is also suggested.

© 2001 Optical Society of America

[Optical Society of America ]

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

Related Journal Articles

• Rotation-Invariant and Controllable Space-Variant Optical Correlation (AO)
• Three-Dimensional Joint Transform Correlator (AO)
• Three-Dimensional Pattern Recognition with a Single Two-Dimensional Synthetic Reference Function (AO)
• Fractional Profilometry Correlator for Three-Dimensional Object Recognition (AO)
• Adaptive Binary Joint Transform Correlator for Image Recognition (AO)

Related Conference Papers

• Shift-Invariant Real-Time Edge-Enhanced VanderLugt Correlator Using Video-Rate Compatible Photorefractive Polymer
• All-Optical Label Recognition Using Tree-Structure Self-Routing Circuits Consisting of Asymmetric X-Junctions
• All-Optical Label Recognition Using Tree-Structure Self-Routing Circuits Consisting of Asymmetric X-Junctions
• Optical Processor Using Waveguide Holograms in Multimode Interference (MMI) Couplers
• Fabrication and evaluation of ultra-fast facial recognition system