Road Surface State Recognition Based on SVM Optimization and Image Segmentation Processing

Table 39

The hybrid road surface image identification results statistics.

State	State symbol	Number of blocks	Grid search	PSO	Grid search/%	PSO/%
Dry	D	45	0	0	0	0
Wet	Wt		14	6	31.11%	13.33%
Water	Wr		12	0	26.67%	0
Snow	S		5	7	11.11%	15.56%
Ice	I		14	32	31.11%	71.11%