Tampere University of Technology

TUTCRIS Research Portal

A near-infrared optoelectronic approach to detection of road conditions

Research output: Contribution to journalArticleScientificpeer-review


Original languageEnglish
Pages (from-to)633-636
Number of pages4
JournalOptics and Lasers in Engineering
Issue number5
Publication statusPublished - May 2013
Publication typeA1 Journal article-refereed


We introduce and test an original approach for the optical assessment of road conditions due to various atmospheric perturbations such as the presence of ice, wet surfaces and rain. The technique is based on measuring diffused and reflected light under near infrared illumination, extracting the polarization contrast after reflection. Several tests, carried out on various types of asphalt and various thicknesses of water and ice layers, demonstrate that the system exhibits selectivity and robustness to allow the recognition of dry asphalt, water-layered, wet asphalt and asphalt with ice.