Patent ID: 6671666
Filing Date: 2003-12-30
Classification: G10L

Abstract:
A recognition system for associating multi-dimensional data vectors with predetermined models, and including:a) compensating means (18) for compensating for distortion in data vectors, b) matching means (24) for associating each compensated data vector with an appropriate model, characterised in that:c) the models are of lower dimensionality than the data vectors, d) the matching means (24) includes transforming means (22) for applying a transformation to data vectors after distortion compensation to reduce their dimensionality to that of the models, e) the system (10) includes inverting means (28) for obtaining a data vector estimation from the associated model by inversion of the said transformation, and f) the system (10) also includes deriving means (30) for deriving a compensation from the data vector estimation and the data vector to which it corresponds for use in distortion compensation by the compensating means.