2017 Volume 41 Issue 2 Pages 177-186
When using a chalkboard or whiteboard in a classroom, teachers often obstruct the content written on the board while pointing to the content or adding notes. At this time, students find it difficult to see or write down the content from the board. In this paper, we propose a system to resolve this issue. This system provides a video that shows the obstructed content through the silhouette of the teacher. Students watch this video through monitors in the classroom. This method can show the obstructed content and the motions or gestures of the teacher simultaneously. We realized real-time processing to generate this video. We have compared the proposed method with other methods to show the obstructed content by removing the teacher or making the teacher transparent completely. We confirmed our methods to be more effective.
