| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | sibgrapi.sid.inpe.br |
| Holder Code | ibi 8JMKD3MGPEW34M/46T9EHH |
| Identifier | 6qtX3pFwXQZeBBx/GN2sy |
| Repository | sid.inpe.br/banon/2005/07.18.05.33 |
| Last Update | 2005:07.18.03.00.00 (UTC) administrator |
| Metadata Repository | sid.inpe.br/banon/2005/07.18.05.33.03 |
| Metadata Last Update | 2022:06.14.00.13.07 (UTC) administrator |
| DOI | 10.1109/SIBGRAPI.2005.14 |
| Citation Key | MorimotoSantMuni:2005:AuIrSe |
| Title | Automatic iris segmentation using active near infra red lighting  |
| Format | On-line |
| Year | 2005 |
| Access Date | 2025, July 03 |
| Number of Files | 1 |
| Size | 568 KiB |
| 2. Context | |
| Author | 1 Morimoto, Carlos Hitoshi 2 Santos, Thiago Teixeira 3 Muniz, Adriano Saturno |
| Affiliation | 1 Department of Computer Science of the Institute of Mathmatics and Statistics of the University of São Paulo |
| Editor | Rodrigues, Maria Andréia Formico Frery, Alejandro César |
| e-Mail Address | hitoshi@ime.usp.br |
| Conference Name | Brazilian Symposium on Computer Graphics and Image Processing, 18 (SIBGRAPI) |
| Conference Location | Natal, RN, Brazil |
| Date | 9-12 Oct. 2005 |
| Publisher | IEEE Computer Society |
| Publisher City | Los Alamitos |
| Book Title | Proceedings |
| Tertiary Type | Full Paper |
| History (UTC) | 2008-07-17 14:11:01 :: hitoshi -> banon :: 2008-08-26 15:17:03 :: banon -> administrator :: 2009-08-13 20:37:59 :: administrator -> banon :: 2010-08-28 20:01:20 :: banon -> administrator :: 2022-06-14 00:13:07 :: administrator -> :: 2005 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Version Type | finaldraft |
| Keywords | iris segmentation biometrics pupil detection near infra red lighting |
| Abstract | This paper introduces a fast, robust and accurate iris segmentation technique based on active lighting. The geometry of the light sources, a single camera and the eye facilitates the detection of the pupil and the automatic selection of the most appropriate image for biometric identification from the video stream, minimizing the effects of noise, distortion and occlusion during the image acquisition process. Two near infrared (NIR) light sources (that are invisible to the human eye) are synchronized with the video signal. One of the light sources is placed near the optical axis of the camera, and generates a bright pupil image. The second light is placed off-axis, generating dark pupil images. These two images can be easily combined to segment the pupil region, and the corneal reflection of the light sources can be used to select best quality images. The pupil position is then used to segment the iris and eyelids using a coarse-to-fine strategy. Experimental results with a real-time prototype show the quality of the iris segmentation. |
| Arrangement 1 | urlib.net > SDLA > Fonds > SIBGRAPI 2005 > Automatic iris segmentation... |
| Arrangement 2 | urlib.net > SDLA > Fonds > Full Index > Automatic iris segmentation... |
| 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/GN2sy |
| zipped data URL | http://urlib.net/zip/6qtX3pFwXQZeBBx/GN2sy |
| Language | en |
| Target File | morimotoc_iris.pdf |
| User Group | hitoshi administrator |
| Visibility | shown |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPEW34M/46R3ED5 8JMKD3MGPEW34M/4742MCS |
| Citing Item List | sid.inpe.br/sibgrapi/2022/05.05.04.08 49 sid.inpe.br/sibgrapi/2022/06.10.21.49 2 sid.inpe.br/banon/2001/03.30.15.38.24 1 |
| Host Collection | sid.inpe.br/banon/2001/03.30.15.38 |
| 6. Notes | |
| Empty Fields | archivingpolicy archivist area callnumber contenttype copyholder copyright creatorhistory descriptionlevel dissemination documentstage edition electronicmailaddress group isbn issn label lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization 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 |