Besides, the selection of nodal points of hidden layer neuron network based on BP is key to the performance of image network, so it is a must to select proper nodal points of the hidden layer.

• 另外，基于BP算法的神经元网络中隐含层节点数的选择是影像网络性能的一个关键因素，所以，要选择恰当的隐含层节点数，