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How to measure the distance error between local and global trajectories?

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Massi_GRB
Massi_GRB 2020-2-21
评论： darova 2020-2-21
I'm looking for a straightforward way to measure the error between samples of global trajectory w.r.t samples of a local planner tracking the global the number of samples are different, and each sample represents a (x,y) location in 2D surface. I thought about calculating the surface between the two curves formed by respective samples set, how to proceed with Matlab or may there is a more adequate method.

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Jacob Wood
Jacob Wood 2020-2-21
My approach would be: resample red curve onto the blue x values using interp1, find local error in each point, sum together to compute global error. Something like:
red_resample = interp1(red_x,red_y,blue_x)
errors = abs(blue-red_resample)
global_error = sum(errors)

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