2011 Fiscal Year Final Research Report
Accurate shape and deformation measurement by spatiotemporal phase-shifting method using high dimensional intensity information
| Project/Area Number |
22760071
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | National Institute of Advanced Industrial Science and Technology (2011)
Tohoku University (2010) |
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Principal Investigator |
RI Shien 独立行政法人産業技術総合研究所, 計測フロンティア研究部門, 研究員 (70509710)
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| Project Period (FY) |
2010 – 2011
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| Keywords | 形状変形計測 / 時空間位相シフト法 / 位相解析 / 格子投影法 / FLCOS素子 |
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| Research Abstract |
A novel phase analysis technique for three-dimensional shape and deformation measurement was proposed, namely, the spatiotemporal phase-shifting method(ST-PSM), which determines phase information of fringe pattern by using high dimensional intensity information in the spatial and temporal domain simultaneously. Simulation and experimental results showed that the phase error caused by random noise of the camera and vibration of the measurement system can be dramatically decreased by the proposed method. As the result, three-dimensional shape and deformation measurement can be performed with the order of micrometer accuracy.
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