Robust handwriting extraction and lecture video summarization

Fu Hao Yeh, Greg C Lee, Ying Ju Chen, Chien Hsing Liao

研究成果: 書貢獻/報告類型會議論文篇章

摘要

Video tools developed today, teachers can record lecture videos and upload these lecture videos to e-learning system themselves. However, some students may only do not understand some fragments but they have to waste unnecessary time download entire video, and therefore video scene segmentation is relative importance. In addition, in traditional teaching model, students must listen and transcribe content on blackboard, when the lecture's write speed is too fast, students are very difficult to pay attention in class and easy to transcription errors. If we can record the lecture video and automatically extract content on the blackboard, students not only enable index videos easily, but also not easily transcribe the wrong notes. Hence, this paper presents an intelligent assistance system for lecture videos. We use K-mean Segmentation to extract blackboard area and then only update this area to avoid lecturer's body cover the content on blackboard. Then we use adaptive threshold to extract chalk and design a method to reduce noise. After that we detecting the lecture videos split timing with statistics chalk pixel count and analysis the variation. Finally, we further interception the most complete content as lecture note to facilitate the students to search for video clips.

原文英語
主出版物標題Proceedings - 2014 10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014
編輯Junzo Watada, Akinori Ito, Chien-Ming Chen, Jeng-Shyang Pan, Han-Chieh Chao
發行者Institute of Electrical and Electronics Engineers Inc.
頁面357-360
頁數4
ISBN(電子)9781479953905
DOIs
出版狀態已發佈 - 2014 十二月 24
事件10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014 - Kitakyushu, 日本
持續時間: 2014 八月 272014 八月 29

出版系列

名字Proceedings - 2014 10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014

其他

其他10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014
國家/地區日本
城市Kitakyushu
期間2014/08/272014/08/29

ASJC Scopus subject areas

  • 資訊系統
  • 人工智慧
  • 訊號處理

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