| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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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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