Detection method of white line and crosswalk and leading method for travelling support for the visually impaired

摘要

We have studied portable travelling systems for the visually impaired and carried out some guidance experiments for them. Recently, we proposed a method using image processing by a protable PC as the system. But, the former method was available for only straight white lines and crosswalks perpendicular to the road. Improved algorhithms for more common white lines and crosswalks are showed in this paper.