| Project/Area Number |
26420195
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Intelligent mechanics/Mechanical systems
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| Research Institution | University of Yamanashi |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
古屋 信幸 山梨大学, 総合研究部, 教授 (50126653)
小谷 信司 山梨大学, 総合研究部, 教授 (80242618)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | マルチカメラ / 三次元計測 / 空間探索法 / 空間尤度 / ステレオカメラ / multi camera / stereo vision / likelihood / resampling / reprojection / 3D measurement / ステレオ画像計測 / 三次元形状計測 / 最尤推定 |
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| Outline of Final Research Achievements |
Three-dimensional shape measurements by a multi-camera system and the correction of the measured points are achieved in this study. First, a geometrical model is constructed using the positional relationship of the calibrated multi-camera. Because the cameras are located linearly on a thin plate whose curvature is changed by an actuator. Second, a three-dimensional object is measured on an epipolar plane, and DP (Dynamic Programming) matching is used to determine the corresponding points and SSD is used as the local area windows. Third, the correlation coefficient is employed to determine the likelihood of the three-dimensional points, which are then set to correct and modify the measured points. Consequently, the measurement results more closely resemble the shape of the measured object.
Finally, re-sampling points are set around measured points as spatially three-dimensional points searching method. The likelihood is set in the three dimensional space around measured points.
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