| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | sibgrapi.sid.inpe.br |
| Holder Code | ibi 8JMKD3MGPEW34M/46T9EHH |
| Identifier | 83LX3pFwXQZeBBx/fL6Uj |
| Repository | dpi.inpe.br/banon/1999/01.13.11.32 |
| Last Update | 1999:01.18.02.00.00 (UTC) administrator |
| Metadata Repository | sid.inpe.br/banon/2001/03.30.15.53.46 |
| Metadata Last Update | 2022:06.14.00.16.29 (UTC) administrator |
| Citation Key | CoelhoOlivEspe:1998:TeCoLi |
| Title | A technique for compensating light source direction in face recognition application  |
| Year | 1998 |
| Access Date | 2024, May 03 |
| Number of Files | 1 |
| Size | 92 KiB |
| 2. Context | |
| Author | 1 Coelho, Paulo Sergio de Souza 2 Oliveira, Antônio A. F. de 3 Esperança, Claudio |
| Editor | Costa, L. da F Camara, G. |
| Conference Name | International Symposium on Computer Graphics, Image Processing and Vision, 11 (SIBGRAPI) |
| Conference Location | Rio de Janeiro, RJ, Brazil |
| Date | 20-23 Oct. 1998 |
| Publisher | Sociedade Brasileira de Computação |
| Publisher City | Porto Alegre |
| Book Title | Proceedings |
| Tertiary Type | Full Paper |
| Organization | SBC - Sociedade Brasileira de Computação |
| History (UTC) | 2008-07-17 14:17:53 :: administrator -> banon :: 2008-08-26 15:25:26 :: banon -> administrator :: 2009-08-13 20:35:53 :: administrator -> banon :: 2010-10-01 04:19:36 :: banon -> administrator :: 2022-06-14 00:16:29 :: administrator -> :: 1998 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Keywords | face recognition light compensation image databases |
| Abstract | A process to obtain the directional component of the main light source illuminating a human face in an image is described. In the first step of this process, two measures using low resolution data are obtained from the image. The value of these measures is then compared with those obtained from a synthetic model illuminated from different directions. This process, however, is not sufficient to indicate a single direction as is proved using a simplified model for face parts. An additional step is required to break the tie by using high frequency data. Once the light direction is determined, correction values are added to the image pixels to obtain an approximation of the face imaged under standard illumination conditions thereby making recognition much easier. |
| Arrangement 1 | urlib.net > SDLA > Fonds > SIBGRAPI 1998 > A technique for... |
| Arrangement 2 | urlib.net > SDLA > Fonds > Full Index > A technique for... |
| 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/83LX3pFwXQZeBBx/fL6Uj |
| zipped data URL | http://urlib.net/zip/83LX3pFwXQZeBBx/fL6Uj |
| Target File | sse067.pdf |
| User Group | administrator |
| Visibility | shown |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPEW34M/46RGNB8 8JMKD3MGPEW34M/4742MCS |
| Citing Item List | sid.inpe.br/sibgrapi/2022/05.08.04.49 3 |
| Host Collection | sid.inpe.br/banon/2001/03.30.15.38 |
| 6. Notes | |
| Notes | The conference was held in Rio de Janeiro, RJ, Brazil, from October 20 to 23. |
| Empty Fields | affiliation archivingpolicy archivist area callnumber contenttype copyholder copyright creatorhistory descriptionlevel dissemination documentstage doi e-mailaddress edition electronicmailaddress format group isbn issn label language 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 versiontype volume |