Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Ha, Ho-Gun | - |
dc.contributor.author | Jeon, Sangseo | - |
dc.contributor.author | Lee, Seongpung | - |
dc.contributor.author | Choi, Hyunseok | - |
dc.contributor.author | Hong, Jaesung | - |
dc.date.accessioned | 2018-10-30T05:59:42Z | - |
dc.date.available | 2018-10-30T05:59:42Z | - |
dc.date.created | 2018-10-21 | - |
dc.date.issued | 2018-10 | - |
dc.identifier.issn | 1861-6410 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/9379 | - |
dc.description.abstract | Purpose: For augmented reality surgical navigation based on C-arm imaging, accuracy of the overlaid augmented reality onto the X-ray image is imperative. However, overlay displacement is generated when a conventional pinhole model describing a geometric relationship of a normal camera is adopted for C-arm calibration. Thus, a modified model for C-arm calibration is proposed to reduce this displacement, which is essential for accurate surgical navigation. Method: Based on the analysis of displacement pattern generated for three-dimensional objects, we assumed that displacement originated by moving the X-ray source position according to the depth. In the proposed method, X-ray source movement was modeled as variable intrinsic parameters and represented in the pinhole model by replacing the point source with a planar source. Results: The improvement which represents a reduced displacement was verified by comparing overlay accuracy for augmented reality surgical navigation between the conventional and proposed methods. The proposed method achieved more accurate overlay on the X-ray image in spatial position as well as depth of the object volume. Conclusion: We validated that intrinsic parameters that describe the source position were dependent on depth for a three-dimensional object and showed that displacement can be reduced and become independent of depth by using the proposed planar source model. © 2018, CARS. | - |
dc.language | English | - |
dc.publisher | Springer Verlag | - |
dc.title | Perspective pinhole model with planar source for augmented reality surgical navigation based on C-arm imaging | - |
dc.type | Article | - |
dc.identifier.doi | 10.1007/s11548-018-1823-6 | - |
dc.identifier.scopusid | 2-s2.0-85049936540 | - |
dc.identifier.bibliographicCitation | Computer-Assisted Radiology and Surgery, v.13, no.10, pp.1671 - 1682 | - |
dc.description.isOpenAccess | FALSE | - |
dc.subject.keywordAuthor | Augmented reality | - |
dc.subject.keywordAuthor | Calibration | - |
dc.subject.keywordAuthor | Medical imaging | - |
dc.subject.keywordAuthor | Radiography | - |
dc.subject.keywordAuthor | Surgical navigation | - |
dc.subject.keywordPlus | CAMERA CALIBRATION | - |
dc.subject.keywordPlus | GEOMETRIC CALIBRATION | - |
dc.subject.keywordPlus | DISTORTION CORRECTION | - |
dc.subject.keywordPlus | ACCURACY | - |
dc.subject.keywordPlus | PLACEMENT | - |
dc.citation.endPage | 1682 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 1671 | - |
dc.citation.title | Computer-Assisted Radiology and Surgery | - |
dc.citation.volume | 13 | - |
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