Method and apparatus for parametric signature verification using global features and stroke-direction codes
US5828772A · kind A · utility
40Cited by
13References
11Claims
0Family size
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Key dates
| Filing date | Dec 27, 1995 |
| Grant date | Oct 27, 1998 |
| Priority date | — |
| Expiry date | Dec 27, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/35
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A signature verification method operates by comparing the numerical values of parameters evaluated on a trial signature with stored reference data derived from previously entered reference signatures. The parameters include global features of the signature, and also include a stroke-direction code (SDC) of the signature. An SDC is derived by subdividing the signature into a sequence of time-ordered, spatially oriented line segments, each segment extending between a pair of discrete points along the signature. Each line segment has a stroke-direction value. The SDC is the ordered sequence of these stroke-direction values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.