How do i make a routine that will iteratively alter the strength a moving average filter?

The context of the question is this: I have a set of data collected by a moving arm that stops at certain locations. I have the velocity of the arm during the duration of the movement, which is the data that i am trying to filter using a moving average filter. I have to vary the strength of the filter until its possible to determine the coordinates of the points where the arm stopped moving. I have no idea how to get around this. can anyone help?

Answer 1

[Image Analyst]

Just find out where the velocity is zero, or less than some small number. Then use those indexes to get the x and y locations.

stoppedIndexes = velocity < 0.1; % or whatever.
xStopped = x(stoppedIndexes);
yStopped = y(stoppedIndexes);
zStopped = z(stoppedIndexes);

If it's stopped for a number of contiguous indexes, and you want just one, then find the centroid of each stopped group using regionprops().

labeled = bwlabel(stoppedIndexes);
props = regionprops(labeled, 'Centroid'); % Returns a structure array of centroids.