title: Image normalization by complex moments.
abstract: The role of moments in image normalization and invariant pattern recognition is addressed. The classical idea of the principal axes is analyzed and extended to a more general definition. The relationship between moment-based normalization, moment invariants, and circular harmonics is established. Invariance properties of moments, as opposed to their recognition properties, are identified using a new class of normalization procedures. The application of moment-based normalization in pattern recognition is demonstrated by experiment.
authors.affiliation: Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA 91125.
authors.forename: Y S
authors.initials: YS
authors.lastname: Abu-Mostafa
authors.forename: D
authors.initials: D
authors.lastname: Psaltis