MULTIPLEXED OPTICAL SYSTEM AND FEATURE VECTOR TRANSFORMER USING THE SYSTEM, FEATURE VECTOR DETECTION AND TRANSMISSION DEVICE, AND RECOGNITION CLASSIFIER USING THE ABOVE

摘要

PROBLEM TO BE SOLVED: To provide a multiplexing optical system which is necessary to speedingly and precisely transform inputted information into effective feature vectors without omitting spatial frequency components of multiplexed process object vectors, and a feature vector converter using the system. ;SOLUTION: The multiplexing optical system performs Fouier transformation of the vector information in parallel which is the multiplexed process object on an input surface R using Fourier transformation lenses 30 that conduct parallel Fourier transformations. Note that the system satisfies the relationship of (kRλfF/ap) where kR is the number of the components of multiplexed parts 10 and 11 of the vector information which becomes the multiplexed process object in an arbitrary cross section including the optical axes, p is the pitch of 0 order part of the Fourier transformed information of each multiplexed part obtained at a Fourier transformation plane F, a is the effective display size of each multiplexed part, λ is the wavelength and fF is the focal distance of the lenses 30.;COPYRIGHT: (C)1997,JPO