Vol.4 No.11 (November 2014)
Technology and Application Analysis of Indexing, Captioned and Keyword Searchable of ICS Lecture Video
Under the promotion and popularization of MOOCs (Massive Open Online Courses), lecture video as one of the main teaching medium, begins to catch peoples’ attention. As a means of classroom and remote network instruction, curriculum lecture videos can record more versatile and multi-functional learning contents compared to a textbook. As the restrictions of the network speed and fast browsing, learners’ acceptable level of lecture video is limited. In this paper, ICS lecture video was introduced with technology of video indexing, keywords search, online subtitle rendering and editing, which can improve and strengthen the users’ experience. Through analysing and present-ing the effective algorithm of the indexing of lecture video, one frame per sample interval was examined and the binary searching method was used. Image pretreatment and OCR tools were used to identify the option, keywords matched to search the required index of lecture video; option of lecture video is automatically recognition to text by a semi-automatic generate processing. ICS lecture video provides a more flexible way of teaching lessons to help learners as master roles in a more flexible time, in any place, to learn effectively. Also it provides a wisdom reference for the development and recording of lecture video in MOOCs.
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