| Project/Area Number |
13450166
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Measurement engineering
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| Research Institution | IWATE UNIVERSITY |
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Principal Investigator |
TAYAMA Norio IWATE UNIVERSITY, FACULTY OF ENGINEERING, PROFESSOR, 工学部, 教授 (40003850)
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| Co-Investigator(Kenkyū-buntansha) |
DAIBO Masahiro IWATE UNIVERSITY, FACULTY OF ENGINEERING, INSTRUCTOR, 工学部, 講師 (20344616)
OSADA Hiroshi IWATE UNIVERSITY, FACULTY OF ENGINEERING, ASSOCIATE PROFESSOR, 工学部, 助教授 (10261463)
TSUNEKAWA Yoshitaka IWATE UNIVERSITY, FACULTY OF ENGINEERING, ASSOCIATE PROFESSOR, 工学部, 助教授 (80163856)
KATOU Hironori IWATE UNIVERSITY, FACULTY OF ENGINEERING, RESEARCH ASSISTANT, 工学部, 助手 (80361046)
杜 海清 岩手大学, 工学部, 助手 (80333756)
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| Project Period (FY) |
2001 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥8,000,000 (Direct Cost: ¥8,000,000)
Fiscal Year 2003: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 2002: ¥6,400,000 (Direct Cost: ¥6,400,000)
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| Keywords | 3D visualization measurement / A few projecting directions / Singular value decomposition / Wavelets sampling function / 画像再構成 |
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| Research Abstract |
The study is concerned with developing a 3D-Visuahzation Measurement method based on the Wavelet SVPC theorem. The method is fast to reconstruct images from a few projections, using the Singular Value Decompositions and sampling model objects. In the study, we introduce a Mayer Wavelet sampling model objects and set a local domain for each voxel of the model object, and then we calculate a voxel value in the center of each voxel by using the reconstruction theorem on each local domain.
The first, we examined a new algorithm for reconstructing image by means of computer simulation under several Wavelet sampling models, and several conditions of projections. We obtained good conditions between many reconstructing parameters. Automatic cut-off rank of SVD algorithm was found effective.
The second, we remodeled a ready-made X-ray equipment into an experimental X-ray CT equipment with image reconstructing function based on the Wavelet SVPC algorithm using. Several experiments made it obvious that the method using a few projections will be useful in several special fields.
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