Direct Visuo-Haptic 4D Volume Rendering Using Respiratory Motion Models.
Identifieur interne : 000323 ( PubMed/Corpus ); précédent : 000322; suivant : 000324Direct Visuo-Haptic 4D Volume Rendering Using Respiratory Motion Models.
Auteurs : Dirk Fortmeier ; Matthias Wilms ; Andre Mastmeyer ; Heinz HandelsSource :
- IEEE transactions on haptics [ 2329-4051 ]
Abstract
This article presents methods for direct visuo-haptic 4D volume rendering of virtual patient models under respiratory motion. Breathing models are computed based on patient-specific 4D CT image data sequences. Virtual patient models are visualized in real-time by ray casting based rendering of a reference CT image warped by a time-variant displacement field, which is computed using the motion models at run-time. Furthermore, haptic interaction with the animated virtual patient models is provided by using the displacements computed at high rendering rates to translate the position of the haptic device into the space of the reference CT image. This concept is applied to virtual palpation and the haptic simulation of insertion of a virtual bendable needle. To this aim, different motion models that are applicable in real-time are presented and the methods are integrated into a needle puncture training simulation framework, which can be used for simulated biopsy or vessel puncture in the liver. To confirm real-time applicability, a performance analysis of the resulting framework is given. It is shown that the presented methods achieve mean update rates around 2,000 Hz for haptic simulation and interactive frame rates for volume rendering and thus are well suited for visuo-haptic rendering of virtual patients under respiratory motion.
DOI: 10.1109/TOH.2015.2445768
PubMed: 26087498
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Direct Visuo-Haptic 4D Volume Rendering Using Respiratory Motion Models.</title><author><name sortKey="Fortmeier, Dirk" sort="Fortmeier, Dirk" uniqKey="Fortmeier D" first="Dirk" last="Fortmeier">Dirk Fortmeier</name></author><author><name sortKey="Wilms, Matthias" sort="Wilms, Matthias" uniqKey="Wilms M" first="Matthias" last="Wilms">Matthias Wilms</name></author><author><name sortKey="Mastmeyer, Andre" sort="Mastmeyer, Andre" uniqKey="Mastmeyer A" first="Andre" last="Mastmeyer">Andre Mastmeyer</name></author><author><name sortKey="Handels, Heinz" sort="Handels, Heinz" uniqKey="Handels H" first="Heinz" last="Handels">Heinz Handels</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="????"><PubDate><MedlineDate>2015 Oct-Dec</MedlineDate></PubDate></date><idno type="doi">10.1109/TOH.2015.2445768</idno><idno type="RBID">pubmed:26087498</idno><idno type="pmid">26087498</idno><idno type="wicri:Area/PubMed/Corpus">000323</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Direct Visuo-Haptic 4D Volume Rendering Using Respiratory Motion Models.</title><author><name sortKey="Fortmeier, Dirk" sort="Fortmeier, Dirk" uniqKey="Fortmeier D" first="Dirk" last="Fortmeier">Dirk Fortmeier</name></author><author><name sortKey="Wilms, Matthias" sort="Wilms, Matthias" uniqKey="Wilms M" first="Matthias" last="Wilms">Matthias Wilms</name></author><author><name sortKey="Mastmeyer, Andre" sort="Mastmeyer, Andre" uniqKey="Mastmeyer A" first="Andre" last="Mastmeyer">Andre Mastmeyer</name></author><author><name sortKey="Handels, Heinz" sort="Handels, Heinz" uniqKey="Handels H" first="Heinz" last="Handels">Heinz Handels</name></author></analytic><series><title level="j">IEEE transactions on haptics</title><idno type="eISSN">2329-4051</idno></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This article presents methods for direct visuo-haptic 4D volume rendering of virtual patient models under respiratory motion. Breathing models are computed based on patient-specific 4D CT image data sequences. Virtual patient models are visualized in real-time by ray casting based rendering of a reference CT image warped by a time-variant displacement field, which is computed using the motion models at run-time. Furthermore, haptic interaction with the animated virtual patient models is provided by using the displacements computed at high rendering rates to translate the position of the haptic device into the space of the reference CT image. This concept is applied to virtual palpation and the haptic simulation of insertion of a virtual bendable needle. To this aim, different motion models that are applicable in real-time are presented and the methods are integrated into a needle puncture training simulation framework, which can be used for simulated biopsy or vessel puncture in the liver. To confirm real-time applicability, a performance analysis of the resulting framework is given. It is shown that the presented methods achieve mean update rates around 2,000 Hz for haptic simulation and interactive frame rates for volume rendering and thus are well suited for visuo-haptic rendering of virtual patients under respiratory motion.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="In-Process"><PMID Version="1">26087498</PMID><DateCreated><Year>2015</Year><Month>12</Month><Day>19</Day></DateCreated><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">2329-4051</ISSN><JournalIssue CitedMedium="Internet"><Volume>8</Volume><Issue>4</Issue><PubDate><MedlineDate>2015 Oct-Dec</MedlineDate></PubDate></JournalIssue><Title>IEEE transactions on haptics</Title><ISOAbbreviation>IEEE Trans Haptics</ISOAbbreviation></Journal><ArticleTitle>Direct Visuo-Haptic 4D Volume Rendering Using Respiratory Motion Models.</ArticleTitle><Pagination><MedlinePgn>371-83</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1109/TOH.2015.2445768</ELocationID><Abstract><AbstractText>This article presents methods for direct visuo-haptic 4D volume rendering of virtual patient models under respiratory motion. Breathing models are computed based on patient-specific 4D CT image data sequences. Virtual patient models are visualized in real-time by ray casting based rendering of a reference CT image warped by a time-variant displacement field, which is computed using the motion models at run-time. Furthermore, haptic interaction with the animated virtual patient models is provided by using the displacements computed at high rendering rates to translate the position of the haptic device into the space of the reference CT image. This concept is applied to virtual palpation and the haptic simulation of insertion of a virtual bendable needle. To this aim, different motion models that are applicable in real-time are presented and the methods are integrated into a needle puncture training simulation framework, which can be used for simulated biopsy or vessel puncture in the liver. To confirm real-time applicability, a performance analysis of the resulting framework is given. It is shown that the presented methods achieve mean update rates around 2,000 Hz for haptic simulation and interactive frame rates for volume rendering and thus are well suited for visuo-haptic rendering of virtual patients under respiratory motion.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Fortmeier</LastName><ForeName>Dirk</ForeName><Initials>D</Initials></Author><Author ValidYN="Y"><LastName>Wilms</LastName><ForeName>Matthias</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Mastmeyer</LastName><ForeName>Andre</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Handels</LastName><ForeName>Heinz</ForeName><Initials>H</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2015</Year><Month>06</Month><Day>16</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>IEEE Trans Haptics</MedlineTA><NlmUniqueID>101491191</NlmUniqueID><ISSNLinking>1939-1412</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="aheadofprint"><Year>2015</Year><Month>6</Month><Day>16</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2015</Year><Month>6</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2015</Year><Month>6</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2015</Year><Month>6</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1109/TOH.2015.2445768</ArticleId><ArticleId IdType="pubmed">26087498</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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