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Fig. 8 | BioMedical Engineering OnLine

Fig. 8

From: Global Kalman filter approaches to estimate absolute angles of lower limb segments

Fig. 8

Absolute body angle of the matricial local model. Where in (a) the gray and dark gray signals are respectively the accelerometer and gyroscope data. The circles are instants fulfilling the criterion \(\Psi\) with matrix approach, where the colors orange, blue, green and pink represent \(\Psi\) being defined respectively by Eqs. (15) to (18). b and c are the absolute body angles estimation

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