Class-associative multiple target detection by use of fringe-adjusted joint transform correlation.

We propose a class-associative correlation filter based technique for detecting a class of objects consisting of dissimilar patterns. The fringe-adjusted joint transform correlation algorithm is utilized to enhance the correlation performance, thus ensuring a strong and equal correlation peak for each element of the selected class. For enhanced performance, an enhanced version of the fringe-adjusted filter is incorporated in the class-associative multiple target detection process. The feasibility of the proposed technique has been tested by computer simulation.

[1]  Dazeng Feng,et al.  Amplitude-modulated JTC for improving correlation discrimination , 1991 .

[2]  F T Yu,et al.  Microcomputer-based programmable optical correlator for automatic pattern recognition and identification. , 1986, Optics letters.

[3]  David L. Flannery,et al.  Design elements of binary joint transform correlation and selected optimization techniques , 1992 .

[4]  A. B. Vander Lugt,et al.  Signal detection by complex spatial filtering , 1964, IEEE Trans. Inf. Theory.

[5]  Mohammad S. Alam,et al.  Reference phase-encoded fringe-adjusted joint transform correlation , 2001 .

[6]  Feng Cheng,et al.  Intensity compensation fiber for joint transform correlation peak enhancement. , 1993, Applied optics.

[7]  J. Horner,et al.  Phase-only matched filtering. , 1984, Applied optics.

[8]  D Casasent,et al.  Key and recollection vector effects on heteroassociative memory performance. , 1989, Applied optics.

[9]  Mohammad S. Alam,et al.  Real-time optical computing: multiprocessor design , 1994 .

[10]  Mohammad A. Karim,et al.  Multiple target detection using a modified fringe-adjusted joint transform correlator , 1994 .

[11]  Mohammad S. Alam,et al.  Color pattern recognition using fringe-adjusted joint transform correlation , 2001 .

[12]  J. Goodman,et al.  A technique for optically convolving two functions. , 1966, Applied optics.

[13]  Richard D. Juday,et al.  Optical Joint Transform Correlation On The DMD , 1989, Photonics West - Lasers and Applications in Science and Engineering.

[14]  M A Karim,et al.  Fringe-adjusted joint transform correlation. , 1993, Applied optics.

[15]  B Javidi,et al.  Multiple-object detection with a chirp-encoded joint transform correlator. , 1993, Applied optics.