2015 Fiscal Year Final Research Report
Study to Design Discrete-Time Oscillator Network for Computer-Aided Image Diagnosis
| Project/Area Number |
25330288
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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 |
Soft computing
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| Research Institution | Kagawa University (2015)
The University of Tokushima (2013-2014) |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 離散時間振動子ネットワーク / 動的画像領域分割 / 振動応答 / カオス / フラグメント |
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| Outline of Final Research Achievements |
The purpose of this study is developing an image segmentation system to be applicable to computer-aided diagnosis system for medical images. We studied the functional design of a discrete-time oscillator network for dynamic image segmentation and obtained the following results. Our detailed analysis of the proposed system gave the parameter values so that the proposed system can generate fragments that are candidates of segmented image regions. We also proposed a method to find such values of system parameters on the basis of an optimization problem on the maximum local Lyapunov exponent. We demonstrated that the proposed system with the parameter values works for three-dimensional medical images well through our experiments. Moreover, from a practical application perspective, we simplified the structure of discrete-time oscillators and implemented the simplified oscillator network in a graphics processing unit.
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| Free Research Field |
非線形数理工学
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