A Trajectory Partition Method Based on Combined Movement Features

Algorithm 3

TPMF pseudocode.

Input: , the maximum

  angle threshold , the distance threshold .

Output: Feature Point Set FP.

 1:  .

 2:  , .

 3:   Calculate standard deviation of speed in

    TR.

 4:  while do

 5:   if then

 6:    .

 7:   end if

 8:   .

 9:  end while

 10:  .

 11:  .

 12:  Sort the points of FP in a chronological order.

 13:  .

 14:   find the indexes of feature points in FP1

     in TR.

 15:  .

 16:  while do

 17:   .

 18:   .

 19:  end while

 20:  Remove duplicate points from FP.

 21:  Sort points in FP in a chronological order.