[Retracted] Sports Target Tracking and Speed Measurement Method Based on Time Domain Vision Sensor

Table 4

Accuracy of the multipurification algorithm.

	Group 1		Group 2		Group 3
	Matching logarithm	Accuracy/%	Matching logarithm	Accuracy/%	Matching logarithm	Accuracy/%
Coarse matching	396	46.2	401	40.2	396	50.2
After purification by neighboring ratio	286	62.6	261	62.1	269	69.6
After two-way matching and purification	198	89.2	181	90.9	209	89.7
After purification by angle cosine	202	98.9	156	98.9	195	98.6
Actual exact match	203	—	162	—	203	—