| Project/Area Number |
11650435
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Measurement engineering
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| Research Institution | Waseda University |
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Principal Investigator |
AKIDUKI Kageo Waseda University, School of Science and Engineering, Professor, 理工学部, 教授 (10063603)
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| Co-Investigator(Kenkyū-buntansha) |
OHURA Izumi Tokyo Denki University, School of Science and Engineering, Associate Professor, 理工学部, 助教授 (50180914)
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| Project Period (FY) |
1999 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2000: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1999: ¥700,000 (Direct Cost: ¥700,000)
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| Keywords | Signal Processing / Wavelet Transformation / Signal Compression / Optical Flow / Multi-Tree Structure / Stochastic Process / Sensor Fusion / Multi-Scale System / 推定 |
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| Research Abstract |
Some basic theories and applications of Multi-Resolution analysis to stochastic processes are developed in this research. Obtained results are as follows :
(1) A multi-scale system representation to a linear stochastic system described by a stochastic differential equation is obtained. Calculation amount in estimation problem is decreased by using this model.
(2) An estimation method of optical flow is proposed. This method has a special characteristic in applying with multi-resolution analysis. On the assumption that data of images are approximately fBm processes, we estimate the parameter values of the process. Using multi-scale system theory, we can estimate the optical flow with very small calculation amount.
(3) A new signal compression method by a translation-invariant Wavelet Transformation is researched. For audio signal, we also developed a signal compression technique by considering hearing characteristics of human being.
(4) Multiple tree systems are proposed as a senser fusion model. A realization technique of this system is obtained and some estimation problems on this system are also researched.
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