1. VISUAL INSPECTION OF RAILROAD TRACKS;Babenko;Diss. Theses - Gradworks,2009
2. Berry, A., Nejikovsky, B., Gilbert, X., Tajaddini, A., 2008. High speed video inspection of joint bars using advanced image collection and processing techniques. In: Proc. of World Congress on Railway Research, vol. 290. pp. 619–622.
3. Latent dirichlet allocation;Blei;J. Mach. Learn. Res.,2003
4. Study of Sea-sky-line Detection Algorithm Based on Hough Transform;Bowen;Infrared Technol.,2015
5. BvSys. 2018. Railway inspection systems. URL http://www.bvsys.de/index.php/products_2/railway-inspection-systems_6/12-headcheck.