Accuracy Improvement of Viewpoint-Free Scene Character Recognition by Rotation Angle Estimation. - Kanta Kuramoto; Wataru Ohyama; Tetsushi Wakabayashi; Fumitaka Kimura (CBDAR, 2013)

Efficient estimation of character normal direction for Camera-based OCR. - Kanta Kuramoto; Wataru Ohyama; Tetsushi Wakabayashi; Fumitaka Kimura (ICDAR, 2015)

Efficient three dimensional rotation estimation for camera-based OCR. - Kanta Kuramoto; Wataru Ohyama; Tetsushi Wakabayashi; Fumitaka Kimura (MVA, 2015)