What does median filter mean?

A filter that keeps the last few readings and outputs the middle one after sorting. Unlike an average, it ignores a minority of wild readings: a median of five survives two outliers untouched.

Also written as: median filters

In a lesson

Drive towards the wall with a median filter and a gate running, and stop 35 cm from it, without being fooled by the robot that crosses in front. Plot raw and median, and print thrown out:, the number of readings your gate rejected.

Learn it

• Taught in U4.4 Outliers Noise and filtering, University

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