Character recognition of mixed convex-concave braille points and legibility of deteriorated braille points. - Yoshifumi Oyama; Toshihisa Tajima; Hiroaki Koga (Syst. Comput. Jpn., 1997)

A Development of Environment Verification System "View-Aid" Using Digital Wireless Camera for Low Vision. - Yoshifumi Oyama; Yuki Shimada (BWCCA, 2010)

The Evaluation Method of Consumer Behavior Pattern Using an Illuminance Sensor Function on a Smart-Tablet. - Kyoko Taguchi; Masataka Iwasaki; Shinich Ogata; Yoshifumi Oyama (BWCCA, 2014)