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Signal processing method and image-voice processing apparatus for measuring similarities between signals

  • US 6,710,822 B1
  • Filed: 10/12/2000
  • Issued: 03/23/2004
  • Est. Priority Date: 02/15/1999
  • Status: Expired due to Fees
First Claim
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1. A signal processing method that extracts signatures defined by the representative segments which are sub-segments that represent the contents of segments constituting signals supplied out of the sub-segments contained in said segments and a weighting function that allocates weights to these representative segments, said signal processing method comprising:

  • a group selection step that selects object groups for said signatures out of the groups obtained by a classification based on an arbitrary attribute of said sub-segment;

    a representative segment selection step that selects a representative segment out of the groups selected in said group selection step; and

    a weight computing step that computes the weight for the representative segment obtained in said selection step, wherein the results of comparison obtained by comparing the similarity of each representative segment of mutually different segments and the weight given to each representative segment computed in said computing step are used to compare the similarity of mutually different segments.

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