Derivation of Moment Invariants.

In most computer vision applications, the extraction of key image features, what- ever the transformations applied and the image degradations observed, is of major importance. A large diversity of approaches has been reported in the literature. This chapter concentrates on one particular processing frame: the moment-based methods. It provides a survey of methods proposed so far for the derivation of moment invari- ants to geometric transforms and blurring effects. Theoretical formulations and some selected examples dealing with very different problems are given. [ABSTRACT FROM AUTHOR]