| Summary: | 碩士 === 國立交通大學 === 電機與控制工程系所 === 96 === Microcirculation is an important functional mechanism of human body and it reveals physiological states of the human body down to the microscopic details. It thus provides a feasible tool to characterize some control experiments. The aim of this study is to develop a reliable scheme for investigating microcirculation behavior based on microscopic image technology. Dual-windows method is particularly feasible for estimating the capillary blood velocity based on motion pictures. In the thesis, we discussed in details the methods of image processing and analysis and elucidated how to make an appropriate choice of some important parameters. Finally, we applied the proposed scheme to 4 subjects, 2 Zen-meditation practitioners and 2 control subjects. The results indicated that meditation practitioners had much higher capillary blood velocities. According to hemodynamics, higher blood velocity might be resulted from smaller blood-vessel resistance, better vessel elasticity, or low blood viscosity. Therefore we might conjecture that people who practice meditation for a long time exhibit better efficiency in their microcirculatory system.
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