Table 2.

The information of validation and testing sequences

Video Name	Val_1	Val_2	Test_1	Test_2	Test_3
Frame number	1043	2428	1127	1146	1431
Capture time (hour)	34.8	80.9	37.6	38.2	44.7
Background color	purple	black	black	black	black
Scale (mm/pixel)	0.258	0.276	0.349	0.379	0.276