SYSTEMS AND METHODS FOR OBTAINING IMPROVED ACCURACY MEASUREMENTS OF MOVING ROLLING STOCK COMPONENTS

摘要

Reference markers (130 and 140 of fig. 1) are attached to rails (112 of fig. 1) and/or other dynamically moving components of railroad tracks, and/or located at fixed and stationary positions adjacent to the track. When images of railway rolling stock are obtained, the reference marker(s) appear in the image Accordingly, measurements of various aspects and parameters of various components of the railway rolling stock can be obtained at high precision and/or accuracy relative to the railroad track component to which the reference marker is attached and/or relative to the stationary position. The reference markers (130 and 140 of fig. 1) allow one or more images, obtained at some intervening time interval, to be accurately and precisely aligned relative to the reference marker(s) regardless of the dynamic motion of the railroad track component(s) (100 of fig. 1) and/or of the rolling stock that occurred as the images were captured. The reference markers can include optical, thermal or other indicia The indicia have known dimensions and/or known distances from an image capture device (120 of fig. 1 ).