I have a IMU attached to the foot and another attached to the tibia. I want to measure individual angles about each axis(X,Y and Z) between those two sensors(using quaternion output). I have done the necessary axis remap to account for the orientation changes.
The problem is that both IMU's have an initial offset values beacue of the uneven suface of the body. And the axis of the IMU is alligned with the body bones as reference and not with each other so I cannot directly take the difference in euler angles
Thank you for your inquiry. Your application is very similar to the use case of continuously detectiing the angle between a laptop lid and its base at 360 degrees rotation of the lid by using two IMUs. Please let us know which country you are located so that we can support you further.