Table 1.

Summary of datasets.

Datasets	Number of Subjects	Sequences	Angle Views	Variations
CASIA-B	124	10	11	Normal walking, Carrying condition, Clothing
OU-ISIR DB${}_{low}$	100	370	1	Steady walking
OU-ISIR DB${}_{high}$	100	370	1	Fluctuated walking
OU-LP (Sequence A)	3916	2	4	4 viewing angles