Residual Analysis

Residual plot of a MoCap recording of hand motions. In this example it reasonable to place a cut-off frequency between 5 and 15 Hz.

This Matlab function performs a residual analysis of some MoCap data (or similar digital data). The residual can be used to determine the frequency content of the given data and a reasonable cut-off frequency. The input data should have a length of more than twice the used filter length <res> due to the filtering process. See [1] and [2] for more information about this method and the interpretation of the residual result.

[1] Skogstad, S. et al., Filtering Motion Capture Data for Real-Time Applications, In proceedings of NIME (2013)

[2] Winter, D.A., Biomechanics and Motor Control of Human Movement, John Wiley & Sons (2009)

By Ståle A. Skogstad
Published Apr. 16, 2013 6:21 PM - Last modified Oct. 22, 2020 1:41 PM