This version of the DiNapoli Stochastic has a smoother indicator and extra logic to match the curve of the lines to identify possible price reversal that matches a sharp price reversal.
This oscillator smoothing method leads to filtering out "noise" in the price movement. It is used in the strategies that are oriented to a standard stochastic. The stronger smoothing can lead to loss of an array of signals, so it is recommended to apply any trend indicator for more efficient use of the indicator and its signals filtering.
This involves a very simple, but useful check on the distance between the signal and result lines using the cross-over distance setting when there is indecision in the price the two lines are very close together when there is a strong change direction the distance is higher.