Construction of haptic display system in virtual space by using measured parameters from MR Elastography
| Project/Area Number | 17300150 |
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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 |
Biomedical engineering/Biological material science
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| Research Institution | Kyoto University |
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Principal Investigator |
MATSUDA Tetsuya Kyoto University, Graduate School of Informatics, Professor (00209561)
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| Co-Investigator(Kenkyū-buntansha) |
AMANO Akira Kyoto University, Graduate School of Informatics, Associate Professor (60252491)
MIZUTA Shinobu Kyoto University, Graduate School of Informatics, Assistant Professor (40314265)
OIDA Takenori Kyoto University, Graduate School of Engineering, Assistant Professor (70447910)
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| Project Period (FY) |
2005 – 2007
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| Project Status |
Completed(Fiscal Year 2007)
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| Budget Amount *help |
¥15,370,000 (Direct Cost : ¥14,500,000、Indirect Cost : ¥870,000)
Fiscal Year 2007 : ¥3,770,000 (Direct Cost : ¥2,900,000、Indirect Cost : ¥870,000)
Fiscal Year 2006 : ¥5,300,000 (Direct Cost : ¥5,300,000)
Fiscal Year 2005 : ¥6,300,000 (Direct Cost : ¥6,300,000)
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| Keywords | Information System / Virtual Reality / Biological Physics / Image Analysis / Haptics |
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| Research Abstract |
The purpose of our research is to construct a haptic display system in virtual space, by using measured parameters from Magnetic Resonance Elastography (MRE). This system can contribute to the Virtual Reality (VR) nMedicine. The results in the research period are as follows:
1. About the procedure to estimate viscoelastic parameters from MRE images, we have (1) established a procedure to estimate the parameters accurately, and (2) evaluated the procedure to reduce the influence of reflection waves in MRE images. We have also (3) observed the existence of anisotropic elasticity in tissues such as skeletal muscle, utilizing procedure (1).
2. In order to measure the distributions of force feedback in real space, we have constructed (1) a system to measure the force feedback from real objects utilizing force sensor and haptic device, (2) a system to measure the shapes of objects by range sensor, and (3) a system for automated measurement of force feedback utilizing robot arm. We have also proposed (4) a procedure to estimate the distribution of force feedback from the interpolation of the measured data, and (5) a procedure to display the haptic information from the distribution (4) in real time.
3. We have confirmed from psychophysical evaluation that the characteristics of force feedback of real object can be represented in virtual space by introducing proper elastic parameters.
4. We have found that the relationship among the transitions of position and force in active touch may include the significant information to perceive shapes of objects.
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Report
(4results)
Research Products
(24results)
