[Retracted] Key Point Detection Method of 3D Network Model Based on Virtual Reality Technology

Table 2

Comparison of time performance of six algorithms on and model base.

Performance	Average feature extraction time (s)		Average retrieval time (s)
	PSB model library	ESB model base	PSB model library	ESB model base
Radon algorithm	5.26	5.09	0.27	0.25
LFD algorithm	4.43	4.26	0.24	0.23
Ed algorithm	4.19	4.03	0.22	0.21
Detail algorithm	3.97	3.88	0.33	0.32
ART-ED-SGD algorithm	6.31	6.23	0.39	0.38
VFTF algorithm	6.23	6.15	0.38	0.35