抄録
In Japan, a research project was carried out with blind subjects from 1996 and 2000 in order to standardize Tactile Walking Surface Indicators (TWSI's) patterns. As a result of the project, JIS T 9251 “Dimensions and patterns of raised parts of tactile walking surface indicators for blind persons” instituted in 2001. However, the JIS T 9251 concerns only Foot-sole for many reasons, and does not take into consideration the usage of white canes. Detection and recognition of TWSI's by white cane are important for safe movement of blind persons, and ensuring of these is required.
This research has been conducted to measure the ease of detection and recognition of TWSI's by white cane, based on the systematic research from 1996 to 2000. Our results proved that the white cane can easily detect 5 mmhigh JIS blocks and this analysis system has the scientific grounds.
