Fig. 7

Quantitative analysis of reconstruction results and true values. (a) The mean value of the coefficient of determination (R2) for each region. (b) The mean value of the mean absolute error (MAE) for each region. PSO-BP = Particle swarm optimization-back propagation neural network, 1D-CNN = One-dimensional convolutional neural network, 2D-CNN = Two-dimensional convolutional neural network, LSTM = Long short-term memory network