Title :
Improving the illumination sensitivity of optical pattern recognition systems using nonlinear techniques in the Fourier domain
Author :
Javidi, Bahram ; Fazlollahi, Amir ; Li, Jian ; Horner, Joseph
Author_Institution :
Dept. of Electr. & Syst. Eng., Connecticut Univ., Storrs, CT, USA
Abstract :
We present an optoelectronic pattern recognition system that can perform image detection in the presence of unknown input scene illumination. The binary joint transform correlator with unknown light illumination is investigated for different thresholding methods
Keywords :
Fourier transform optics; Fourier transforms; image recognition; light sources; optoelectronic devices; sensitivity; Fourier domain; binary joint transform correlator; illumination sensitivity; image detection; nonlinear techniques; optical pattern recognition systems; optoelectronic pattern recognition system; thresholding methods; unknown input scene illumination; unknown light illumination; Correlators; Fourier transforms; High speed optical techniques; Layout; Lighting; Nonlinear optical devices; Nonlinear optics; Optical sensors; Pattern recognition; Signal generators;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1993. LEOS '93 Conference Proceedings. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-1263-5
DOI :
10.1109/LEOS.1993.379133
