Unconstrained Handwritten Numerals Recognition Using Line Features Extracted by DOG Filters. - M. Sasaki; Y. Hirai (ICONIP (2), 1997)

Alive Monitoring Sensor System with 2.45-GHz Wireless Power Transfer for Self-powered Wireless Sensor. - F. Nishimura; Y. Hirai; A. Kamitani; Ami Tanaka; Fumiyasu Utsunomiya; Hisashi Nishikawa; Takakuni Douseki (IEEE SENSORS, 2021)