Algorithm 1: Calculate DTW distance set.

1: T: template library containing $n_t$ template segments.

2: Input:

3: s: segment for recognition, whose class is unknown.

4: Output:

5: D: DTW distance set containing $n_t$ DTW distances between s and each template segment.

6: for each template segment $s{t}_i$ in T do

7:  $d_i$ = dynamic time warping ($s{t}_i$, s);

8:  add $d_i$ into D;

9: end for