Chinese Journal of Lasers B, 1997, 6 (1): 64, 网络出版: 2006-10-31
Invariant Joint Transform CorrelatorⅠ: Mapping Filter
Invariant Joint Transform CorrelatorⅠ: Mapping Filter
invariant optical pattern recognition cyclic shift joint transform correlator binary optical component
摘要
Abstract
A joint transform correlator incorporating coordinate transformation technique is propescd to perform invariant pattern recognition. Instead of an input image or its Fourier transform intensity, the Fourier transform of the input image is directly transformed from rectangular into logarithmic-polar coordinate. All of information is saved, and as a result, multiple objects can be proceased simulataneously. A binary optical component is designed and fabricated to perform coordinate transformation in high efficiency.
FENG Jihong, WU Minxian, JIN Guofan, YAN Shuhua. Invariant Joint Transform CorrelatorⅠ: Mapping Filter[J]. Chinese Journal of Lasers B, 1997, 6(1): 64. FENG Jihong, WU Minxian, JIN Guofan, YAN Shuhua. Invariant Joint Transform CorrelatorⅠ: Mapping Filter[J]. 中国激光(英文版), 1997, 6(1): 64.