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Trainable system to search for objects in images

  • US 6,421,463 B1
  • Filed: 03/31/1999
  • Issued: 07/16/2002
  • Est. Priority Date: 04/01/1998
  • Status: Expired due to Fees
First Claim
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1. A system for processing an image, the system comprising:

  • an image database which includes a set of example images at least some of which include objects of interest; and

    a classifier, coupled to said image database, to receive an image from said database and to process said image, said classifier including a wavelet template generator, said wavelet template generator comprising;

    (1) a wavelet scale selector to select at least one wavelet scale which corresponds to at least one feature of the object of interest;

    (2) a wavelet coefficient processor for computing wavelet coefficients at each of the at least one wavelet scales; and

    (3) a normalization processor to receive the wavelet coefficients and to normalize the wavelet coefficients such that an average value of the wavelet coefficients of a random pattern is a predetermined value.

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