Self-Calibration and Neural Network Implementation of Photometric Stereo. - Yuji Iwahori; Yumi Watanabe; Robert J. Woodham; Akira Iwata (ICPR (4), 2002)

Measuring Pressure Difference for Ventilation System in Highway Tunnel. - Kensaku Kawauchi; Yumi Watanabe; Yuichi Mizushima (ICST, 2019)