Evaluation of Picture-taking System for Railway Vision
Railway Technology Research Institute, 2-8-38 Hikari-cho, Kokubunji-shi, Tokyo 185-8540, Japan
Railway vision is an important image processing application in which pictures taken from the front of a train are used to support operational control and inspect wayside facilities. We evaluated picture-taking systems using a space and picture model – the imaginary tunnel model – in which railway space is modeled as an imaginary rectangular tunnel including a construction gauge. Position criteria and camera direction are studied based on the visible tunnel zone. We also estimated position and direction based on rail loci in camera pictures.
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