マイクロ視野におけるボケ幅の差を用いた奥行き方向の距離推定

概要

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This paper proposes a depth estimation method in order to achieve automation for micro-operation with a system consisting of an optical microscope and a micro-manipulator. The proposed method is able to estimate a distance of depth using difference between the blur widths of a micro-manipulator and a micro-object. The estimation equation is derived from a curve to which the equation based on the depth of field is approximated. The constants of the curve can be obtained by using the least-square method. In the experiments, the micro-operation system has achieved to automatically move the micro-manipulator to the depth position of a target object. It means that the estimation equation can precisely calculate distance of the target. In this paper, effectiveness of the proposed method is shown by these experimental results.