This paper presents a novel method of recognizing deformation on the measured rail profile based on laser image system, which is caused by multiple degrees of freedom vibration on the vehicle.According to the characteristic and distinction of the normal profile and distorted one, a convolutional neural network with triple channels, whose parameters are independent, is designed to recognizing deformation. The down samples of original profile image, cropped images around the rail jaw and rail foot are taken as input for each channel, respectively. To train the network effectively, a dataset cons...
