Mixed Signature: An Invariant Descriptor for 3D Motion Trajectory Perception and Recognition

Table 4

Average ratio of correct recognition (%).

Number of classes	2	4	8
Previous signature	92.03	87.52	81.19
Mixed signature	94.30	90.15	86.71
Fourier descriptor	87.98	75.74	63.85

Data of the previous signature in this table is referred the experimental results of [31].