| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | sibgrapi.sid.inpe.br |
| Holder Code | ibi 8JMKD3MGPEW34M/46T9EHH |
| Identifier | 6qtX3pFwXQZG2LgkFdY/UPPp9 |
| Repository | sid.inpe.br/sibgrapi@80/2008/07.21.08.21 |
| Last Update | 2008:07.21.08.21.57 (UTC) administrator |
| Metadata Repository | sid.inpe.br/sibgrapi@80/2008/07.21.08.21.58 |
| Metadata Last Update | 2022:06.14.00.13.49 (UTC) administrator |
| DOI | 10.1109/SIBGRAPI.2008.16 |
| Citation Key | EskildsenØste:2008:EvFiAl |
| Title | Evaluation of five algorithms for mapping brain cortical surfaces  |
| Format | Printed, On-line. |
| Year | 2008 |
| Access Date | 2024, Apr. 27 |
| Number of Files | 1 |
| Size | 404 KiB |
| 2. Context | |
| Author | 1 Eskildsen, Simon Fristed 2 Østergaard, Lasse Riis |
| Affiliation | 1 Dept. of Health Science and Technology, Aalborg University 2 Dept. of Health Science and Technology, Aalborg University |
| 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) | 2008-07-21 08:21:58 :: se@hst.aau.dk -> administrator :: 2009-08-13 20:39:00 :: administrator -> se@hst.aau.dk :: 2010-08-28 20:03:23 :: se@hst.aau.dk -> administrator :: 2022-06-14 00:13:49 :: administrator -> :: 2008 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Version Type | finaldraft |
| Keywords | Cerebral cortex surface mapping MRI |
| Abstract | With the increasing resolution and contrast of brain imaging devices automatic segmentation and quantification of the human cerebral cortex have grown popular for morphological analyses. The tightly folded cortex is often modeled with surfaces in 3D, and morphological features, such as the cortical thickness, can be calculated. In order to average and compare such morphological features within groups of subjects, mappings between the highly diverse cortical surfaces are needed. In this paper we evaluate five algorithms for mapping between discrete polygonal surfaces of cortices. Among the evaluated algorithms we include a new algorithm based on a functional expressing similarity between geometrical features. Four numerical mapping criteria, a landmark test, and statistical maps are used to evaluate the mapping algorithms. We show that the accuracy of manually placed landmarks are difficult to reproduce automatically, and the choice of mapping algorithm impacts the conclusions drawn from statistical maps generated by use of the algorithm. In terms of landmark accuracy, a spherical mapping approach with non-linear optimization is shown to be the best of the tested algorithms. |
| Arrangement 1 | urlib.net > SDLA > Fonds > SIBGRAPI 2008 > Evaluation of five... |
| Arrangement 2 | urlib.net > SDLA > Fonds > Full Index > Evaluation of five... |
| 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/UPPp9 |
| zipped data URL | http://urlib.net/zip/6qtX3pFwXQZG2LgkFdY/UPPp9 |
| Language | en |
| Target File | eskildsen-CorticalMapping.pdf |
| User Group | se@hst.aau.dk 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 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 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 |