Patent · US Expired

Signature collation apparatus, signature collation method, and program which causes computer to execute the method

US6973204B2 · kind B2 · utility

13Cited by
11References
11Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 12, 2002
Grant dateDec 6, 2005
Priority date
Expiry dateMay 13, 2024

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06V40/30
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

It is controlled by a non-transformation coefficient calculated by a non-transformation calculation section, whether feedback is performed or not. When the feedback is ended, a collation value calculation section calculates a collation value (coincidence coefficient×non-transformation coefficient). A display process section compares the collation value with a predetermined threshold value. When the collation value is a threshold value or more, a signature is decided as a true signature, and the transformation-corrected image and the reference image are displayed such that these images overlap.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.