Empirical based optimal design of Active Strobe Imager

We discuss an empirical based design of Active Strobe Imager (ASI) that enables us to visualize the dynamic behavior of tissue, even under a high frequency vibration that cannot be followed by the naked eye. A pneumatic actuator imparts a vibration for the target object. By flashing light with slightly different frequency, we can see the dynamics by the naked eye. We discuss an approach for determining a set of optimal parameters of ASI by considering both the uncomfortability sensation due to light flickering, the sharpness of the motion, and the amplitude of the vibration of the object. We also give an example of optimal parameter determination for human skin.