Close
Metadata

1. Identity statement
Reference TypeConference Paper (Conference Proceedings)
Sitesibgrapi.sid.inpe.br
Holder Codeibi 8JMKD3MGPEW34M/46T9EHH
Identifier8JMKD3MGPBW34M/3A3M362
Repositorysid.inpe.br/sibgrapi/2011/07.11.03.00
Last Update2011:07.11.03.00.01 (UTC) administrator
Metadata Repositorysid.inpe.br/sibgrapi/2011/07.11.03.00.01
Metadata Last Update2022:06.14.00.07.19 (UTC) administrator
DOI10.1109/SIBGRAPI.2011.33
Citation KeyMartinsMasc:2011:SpReEn
TitleSpatio-temporal resolution enhancement of vocal tract MRI sequences based on the Wiener filter
FormatDVD, On-line.
Year2011
Access Date2025, July 08
Number of Files1
Size1599 KiB
2. Context
Author1 Martins, Ana Luísa Dine
2 Mascarenhas, Nelson Delfino d'Ávila
Affiliation1 Universidade Federal de São Carlos
2 Universidade Federal de São Carlos
EditorLewiner, Thomas
Torres, Ricardo
e-Mail Addressana_martins@dc.ufscar.br
Conference NameConference on Graphics, Patterns and Images, 24 (SIBGRAPI)
Conference LocationMaceió, AL, Brazil
Date28-31 Aug. 2011
PublisherIEEE Computer Society
Publisher CityLos Alamitos
Book TitleProceedings
Tertiary TypeFull Paper
History (UTC)2011-07-23 15:36:13 :: ana_martins@dc.ufscar.br -> administrator :: 2011
2022-06-14 00:07:19 :: administrator -> :: 2011
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Version Typefinaldraft
Keywordsmagnetic resonance imaging (MRI)
human speech production research
spatio-temporal resolution enhancement
super-resolution image reconstruction
AbstractResearch on human speech production is highly dependent upon information about the position and movements of the speech articulators. Dynamic magnetic resonance imaging (MRI) has been the main tool to support this process. With this technique, image sequences can be acquired in the act of speech, which allows identifying shapes of the vocal tract in real time. However, the spatial and temporal resolution requirements are not known a priori and are expected to vary according to the speech task. Several available approaches enhance resolution by either changing the acquisition process of current devices, or by trading the acquisition devices themselves by more powerful ones. Both solutions involve additional hardware costs. In this paper, we propose an evolution of an approach to enhance spatio-temporal resolution of MRI image sequences of the vocal tract using only digital image processing techniques. On one hand, temporal resolution is increased by generating intermediate images according to the movement present in an observed sequence. On the other hand, spatial resolution is increased by applying a novel approach to super-resolution image reconstruction based on the Wiener filter. To evaluate the proposed approach, we processed a set of five simulated low resolution images in a sequence. Compared to available methods, results provide evidence of the effectiveness of the proposed method.
Arrangement 1urlib.net > SDLA > Fonds > SIBGRAPI 2011 > Spatio-temporal resolution enhancement...
Arrangement 2urlib.net > SDLA > Fonds > Full Index > Spatio-temporal resolution enhancement...
doc Directory Contentaccess
source Directory Contentthere are no files
agreement Directory Content
agreement.html 11/07/2011 00:00 0.5 KiB 
4. Conditions of access and use
data URLhttp://urlib.net/ibi/8JMKD3MGPBW34M/3A3M362
zipped data URLhttp://urlib.net/zip/8JMKD3MGPBW34M/3A3M362
Languageen
Target FileSibgrapi2011.pdf
User Groupana_martins@dc.ufscar.br
Visibilityshown
5. Allied materials
Mirror Repositorysid.inpe.br/banon/2001/03.30.15.38.24
Next Higher Units8JMKD3MGPEW34M/46SKNPE
8JMKD3MGPEW34M/4742MCS
Citing Item Listsid.inpe.br/sibgrapi/2022/05.15.00.56 29
sid.inpe.br/sibgrapi/2022/06.10.21.49 2
Host Collectionsid.inpe.br/banon/2001/03.30.15.38
6. Notes
Empty Fieldsarchivingpolicy archivist area callnumber contenttype copyholder copyright creatorhistory descriptionlevel dissemination documentstage 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


Close