| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | sibgrapi.sid.inpe.br |
| Holder Code | ibi 8JMKD3MGPEW34M/46T9EHH |
| Identifier | 6qtX3pFwXQZeBBx/vRTs3 |
| Repository | sid.inpe.br/banon/2002/10.24.10.49 |
| Last Update | 2002:08.29.03.00.00 (UTC) administrator |
| Metadata Repository | sid.inpe.br/banon/2002/10.24.10.49.39 |
| Metadata Last Update | 2022:06.14.00.11.51 (UTC) administrator |
| DOI | 10.1109/SIBGRA.2002.1167146 |
| Citation Key | SilvaFrei:2002:WaCoFu |
| Title | Wavelet-based compared to function-based on-line signature verification  |
| Year | 2002 |
| Access Date | 2024, Apr. 28 |
| Number of Files | 1 |
| Size | 283 KiB |
| 2. Context | |
| Author | 1 Silva, Andréa Vergara da 2 Freitas, Daniel Santana de |
| Editor | Gonçalves, Luiz Marcos Garcia Musse, Soraia Raupp Comba, João Luiz Dihl Giraldi, Gilson Dreux, Marcelo |
| Conference Name | Brazilian Symposium on Computer Graphics and Image Processing, 15 (SIBGRAPI) |
| Conference Location | Fortaleza, CE, Brazil |
| Date | 10-10 Oct. 2002 |
| Publisher | IEEE Computer Society |
| Publisher City | Los Alamitos |
| Book Title | Proceedings |
| Tertiary Type | Full Paper |
| Organization | SBC - Brazilian Computer Society |
| History (UTC) | 2008-07-17 14:10:47 :: administrator -> banon :: 2008-08-26 15:21:22 :: banon -> administrator :: 2009-08-13 20:36:42 :: administrator -> banon :: 2010-08-28 20:00:07 :: banon -> administrator :: 2022-06-14 00:11:51 :: administrator -> :: 2002 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Version Type | finaldraft |
| Abstract | We implemented two direct methods for on-line signature verification. First, data produced by a graphics tablet describing a signature to be tested are treated with wavelet transforms to generate features to be nonlinearly confronted with a reference signature chosen among 10 previously stored tryings from the same writer. In order to recover the time dependence lost in the wavelet treatment, we included the level of departure from the diagonal line in the warping function as a complementary measure of distance. In a second approach, the functions x(t) and y(t) describing position in time of each pixel of the same test signature were directly (though nonlinearly) compared to their counterparts from the reference. We concluded that both approaches showed good fidelity to all details in the signatures, with acceptable false rejection rates (we obtained around 30% FRR) to this kind of biometry. On the other hand, the inclusion of the wavelet transform turned out to be an essential step for the achievement of low false acceptation rates. It was only with the inclusion of the wavelet transform, in the right level of resolution, that we managed to completely prevent trained forgeries to be accepted (0% FAR) in the cases studied. |
| Arrangement 1 | urlib.net > SDLA > Fonds > SIBGRAPI 2002 > Wavelet-based compared to... |
| Arrangement 2 | urlib.net > SDLA > Fonds > Full Index > Wavelet-based compared to... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/6qtX3pFwXQZeBBx/vRTs3 |
| zipped data URL | http://urlib.net/zip/6qtX3pFwXQZeBBx/vRTs3 |
| Language | en |
| Target File | 82.pdf |
| User Group | administrator |
| Visibility | shown |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPEW34M/46QCSHP 8JMKD3MGPEW34M/4742MCS |
| Citing Item List | sid.inpe.br/sibgrapi/2022/05.01.04.11 5 |
| Host Collection | sid.inpe.br/banon/2001/03.30.15.38 |
| 6. Notes | |
| Notes | The conference was held in Fortaleza, CE, Brazil, from October 7 to 10. |
| Empty Fields | affiliation archivingpolicy archivist area callnumber contenttype copyholder copyright creatorhistory descriptionlevel dissemination documentstage e-mailaddress edition electronicmailaddress format group isbn issn keywords label lineage mark mirrorrepository nextedition numberofvolumes orcid pages parameterlist parentrepositories previousedition previouslowerunit progress project readergroup readpermission resumeid rightsholder schedulinginformation secondarydate secondarykey secondarymark secondarytype serieseditor session shorttitle sponsor subject tertiarymark type url volume |