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

Table 36

The hybrid road surface image identification results statistics.

State	State symbol	Number of blocks	Grid search	PSO	Grid search/%	PSO/%
Dry	D	48	14	13	29.17%	27.08%
Wet	Wt		19	14	39.58%	29.17%
Water	Wr		13	21	27.08%	43.75%
Snow	S		2	0	0.42%	0
Ice	I		0	0	0	0