Inspec keywords: Zernike polynomials; feature extraction; character recognition; face recognition

Other keywords: human face recognition; rotation invariant complex Zernike moments; imaginary components; binary Roman character image; classification problems; ORL database; real components; image rotation; character recognition

Subjects: Interpolation and function approximation (numerical analysis); Character recognition; Interpolation and function approximation (numerical analysis); Computer vision and image processing techniques; Image recognition; Image recognition