1. British Standards Institution , “Textile floor coverings classification of machine-made pile rugs and runners,” BSI: Textiles Floor Coverings, BS EN 14215:2003 (June 2010).
2. International Organization for Standardization “Textile floor coverings—production of changes in appearance by means of vettermann drum and hexapod tumbler testers,” Tc 219 Floor coverings, ISO 10361:2000 (March 2005).
3. Texture measures for carpet wear assessment
4. Carpet Texture Measurement Using Image Analysis