Research on Moving Target Detection and Tracking Technology in Sports Video Based on SIFT Algorithm

Table 8

The resolution repetition rate of the key point detection algorithm on the Space Time data set.

Reduced proportions	50%	70%	80%	90%	95%
ISS	0.117362	0.097061	0.079184	0.058075	0.040905
KPQ	0.033835	0.025149	0.012524	0.010403	0.007272
HoNO	0.134229	0.101303	0.068882	0.039693	0.022725
LSP	0.156348	0.114231	0.096354	0.044238	0.022422
3D-Harris	0.094132	0.082012	0.081406	0.067973	0.035754
3D-SIFT	0.145743	0.134128	0.104636	0.087163	0.043733