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Blackboard segmentation using video image of lecture and its applications

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3 Author(s)
Onishi, M. ; Dept. of Comput. & Syst. Sci., Osaka Prefecture Univ., Japan ; Izumi, M. ; Fukunaga, K.

We propose a method for segmentation of written regions on a blackboard in the lecture room using a video image. We first detect the static edges of which locations on the image are stationary. Next, we extract several rectangular regions in which these static edges are located densely. Finally, by use of fuzzy rules, the extracted rectangles are merges as contextual regions, where letters and figures in each contextual region explain each context. We apply our method to automatic production of lecture video, and archives segmentation of written regions on the blackboard in lecture rooms

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Pattern Recognition, 2000. Proceedings. 15th International Conference on  (Volume:4 )

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