Multiscale feature detector using filter banks

Details Multiscale feature detector using filter banks Multiscale feature detector using filter banks

1997-06-30

2000-05-16

Boudreau, Leo H.

Image analysis

Pattern recognition

Feature extraction

382190, 382260, 382278, 3647242, 36472803, G06K 946, G06K 966, G06K 15316, G06F 738

Patent

active

06064768&

ABSTRACT:
A detector system locates a feature in an input signal. The input signal is applied to a multiscale filter bank which produces a corresponding set of filtered signals that are applied to a multiscale detector. A scale space tree table is produced by the detector which indicates the location in each filtered signal where the feature is possibly located. A MAP correlator examines the scale space tree table to determine which indications therein are feature locations. One-dimensional and two-dimensional embodiments are described. In addition, the design framework is disclosed for extending a one scale filter to a multiscale filter, for designing a filter bank from the multiscale filter and for designing the MAP correlator dependent on the feature being located and the chosen filter bank.

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