The training process of the BP artificial neural networks corresponds to the modeling in the active computer vision. 人工神经网络的训练过程对应于主动式机器视觉的内部建模过程。
The active designs are costlier and bulkier than passive patches, but several are already in advanced clinical trials. 主动式的设计虽然不像被动型贴片般价廉轻便，但也有若干种已经进入进阶临床试验的阶段。
