Table 4.

The effect of positive–negative loss in different models on URC dataset.

Networks	Without positive–negative loss		With positive–negative loss
	MAE	RMSE	MAE	RMSE
MCNN [30]	25.5	34.1	11.7↓	16.5↓
SANet [32]	10.1	13.4	10.8	14.9
CSRNet [17]	12.9	17.5	9.2↓	14.0↓
TasselNetV2 [41]	29.5	39.4	15.1↓	20.3↓
RiceNet	10.6	13.6	8.6↓	11.1↓