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--- optitrack_motion_capture_system_getting_position_velocity_data [2017/05/08 19:05] – hyunheelee
+++ optitrack_motion_capture_system_getting_position_velocity_data [2017/05/09 16:28] (current) – hyunheelee
@@ Line 112: / Line 112: @@
 {{ hh_mocap:capture9.png?500 |}}
-This is the raw data file that exported from "Arena" software.
+This is the raw data BVH file that exported from "Arena" software.
 You can change this file to "txt" or "excel" file for loading to other software tools.
 ====Acquire velocity data====
+You can get velocity data by derivative position data.{{ hh_mocap:capture11.png?65 |}} Using this equation, you can get velocity data of x,y,z. This is time dependent acceleration.
+Once you get the x,y,z velocity data,
+v = √((xi)^2) + ((yi)^2) + ((zi)^2)
+exploit this equation to get velocity of rigid body.
+This is the position profile by exported raw data using "matlab"
+{{ hh_mocap:position.jpg?300 |}}
+This is the velocity profile by exported raw data using "matlab"
+{{ hh_mocap:velocity.jpg?300 |}}