X線単面投影像による人工膝関節の三次元位置・姿勢推定に関する研究(機械力学,計測,自動制御)

概要

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The new technique originated by S. Banks was further developed in this study for the measurement of 3 D motion from 2 D perspective projections of knee prosthesis. The technique used measured perspective surface geometry to implement a contour matching based position/orientation estimation scheme. The estimation was processed in two stages. The first stage estimation was done on the assumotion of orthogonal projection. Then, the second stage estimation was succeeded based upon the perspective projection to accomplish more accurate estimation. Computer model studies indicated that the technique could archive sufficient accuracies, especially the advantage in the application of the second stage estimation. lt is proposed that this technique can provide a unique and valuable new tool for quantifying the performance of existing total knee designs and for developing improved knee replacement devices.
社団法人日本機械学会の論文
2003-03-25