Japanese / English


論文の言語 英語
著者 Seiichi Uchida, Katsuhiro Itou, Masakazu Iwamura, Shinichiro Omachi, and Koichi Kise
論文名 On a Possibility of Pen-Tip Camera for the Reconstruction of Handwritings
論文誌名 Proceedings of the Third International Workshop on Camera-Based Document Analysis and Recognition (CBDAR2009)
ページ pp.119-126
発表場所 Barcelona, Spain
年月 2009年7月
要約 Toward realization of “writing-life-log,” a camera-based handwriting pattern acquisition system is proposed. The camera is attached around the tip of a popular pen and captures frame images around the pen tip continuously. Our problem is the reconstruction of the entire handwriting pattern by video-mosaicing of those frame images with perspective registration of consecutive frames. A key idea is to use microscopic structure of paper surface, called paper fingerprint, for the registration. Specifically, perspective transformation is estimated by using correspondence of SURF keypoints extracted on paper surface. Since the precise structure can be captured stably as the SURF keypoints from the pen-tip camera, thus it is possible to expect accurate registration of video frames.