| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | sibgrapi.sid.inpe.br |
| Holder Code | ibi 8JMKD3MGPEW34M/46T9EHH |
| Identifier | 6qtX3pFwXQZG2LgkFdY/V79mf |
| Repository | sid.inpe.br/sibgrapi@80/2008/08.09.18.08 |
| Last Update | 2008:08.09.18.08.12 (UTC) administrator |
| Metadata Repository | sid.inpe.br/sibgrapi@80/2008/08.09.18.08.13 |
| Metadata Last Update | 2022:06.14.00.13.53 (UTC) administrator |
| DOI | 10.1109/SIBGRAPI.2008.39 |
| Citation Key | SaracchiniStolLeit:2008:MaPhOb |
| Title | Matching Photometric Observation Vectors with Shadows and Variable Albedo  |
| Format | Printed, On-line. |
| Year | 2008 |
| Access Date | 2024, May 02 |
| Number of Files | 1 |
| Size | 341 KiB |
| 2. Context | |
| Author | 1 Saracchini, Rafael Felipe Veiga 2 Stolfi, Jorge 3 Leitão, Helena Cristina da Gama |
| Affiliation | 1 IC-Unicamp 2 IC-Unicamp 3 IC-UFF |
| Editor | Jung, Cláudio Rosito Walter, Marcelo |
| Conference Name | Brazilian Symposium on Computer Graphics and Image Processing, 21 (SIBGRAPI) |
| Conference Location | Campo Grande, MS, Brazil |
| Date | 12-15 Oct. 2008 |
| Publisher | IEEE Computer Society |
| Publisher City | Los Alamitos |
| Book Title | Proceedings |
| Tertiary Type | Full Paper |
| History (UTC) | 2008-08-09 18:08:13 :: hcgl@ic.uff.br -> administrator :: 2009-08-13 20:39:03 :: administrator -> hcgl@ic.uff.br :: 2010-08-28 20:03:23 :: hcgl@ic.uff.br -> administrator :: 2022-06-14 00:13:53 :: administrator -> :: 2008 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Version Type | finaldraft |
| Keywords | variable lighting photometric stereo shadows and highlight detection signature-matching |
| Abstract | We describe a procedure to solve the basic problem of Variable Lighting Photometric Stereo -- namely, recovering the normal directions and intrinsic albedos at all visible points of an opaque object, by analyzing three or more photos of the same taken with different illuminations. We follow the gauge-based approach, where the lighting conditions and light scattering properties of the surface are given indirectly by photographing a gauge object with known shape and albedo, under the same lighting conditions. Unlike previous solutions, our method yields reliable results even when some of the images contain cast shadows, penumbras, highlights, or inter-object lighting, at a cost. The cost of inner loop grows quadratically, (rather than exponentially) with the number m of input images. Usable approximations can be obtained in m log m time. |
| Arrangement 1 | urlib.net > SDLA > Fonds > SIBGRAPI 2008 > Matching Photometric Observation... |
| Arrangement 2 | urlib.net > SDLA > Fonds > Full Index > Matching Photometric Observation... |
| 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/6qtX3pFwXQZG2LgkFdY/V79mf |
| zipped data URL | http://urlib.net/zip/6qtX3pFwXQZG2LgkFdY/V79mf |
| Language | en |
| Target File | stolfij-MatchingPhotometric.pdf |
| User Group | hcgl@ic.uff.br administrator |
| Visibility | shown |
| 5. Allied materials | |
| Mirror Repository | sid.inpe.br/banon/2001/03.30.15.38.24 |
| Next Higher Units | 8JMKD3MGPEW34M/46SG4TH 8JMKD3MGPEW34M/4742MCS |
| Citing Item List | sid.inpe.br/sibgrapi/2022/05.14.04.55 3 |
| 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 e-mailaddress edition electronicmailaddress group isbn issn label lineage mark 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 |