Using Footer Information on Slide to Make Index of Lecture Video

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Using Footer Information on Slide to Make Index
of Lecture Video

• Munenori INOUE
• Graduate School of Information Science
• Kyusyu Sangyo University

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Presentation Contents

• Introduction
• Make index of lecture video
• Using footer information
• Future works
• Conclusion

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Introduction

• Development of communications technology
• Apply it to education
• Brought an effect of increase at study chance
• e-leaning system makes it possible to learn
  "Everyone anytime and anywhere
• Attracts high expectation

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LRLecture Record System of KSU?

• We have a Lecture Record System in the Faculty of
  Information Science and Graduate School of
  Information Science
• LR records almost of subjects by teacher of our
  faculty
• Video format of this system is Real Media

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Lecture Record System of KSU?

• The length of one video file is 95 minutes
• Students opinion from enquete
• Playback the necessary part is difficult
• Want to download lecture videos
• Want to access it from outside the school

Purpose of this study is to make index of
lecture video
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Make index of lecture video

• By time information
• Fixed period
• User designation
• By slide information
• Use whole slide
• Use title of slide
• Use footer of slide

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Fixed period

• Ex. 10min

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User designation
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Use whole slide

• Capture a whole slide periodically
• Recognize the image
• Record time information when slide was changed
• Make index based on time information

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Merit / Demerit whole slide

• Merit
• Can record multiple timing in one slide
• Demerit
• Division is too detailed
• Load of the system is high
• Too sensitive to animation

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Use title of slide

• Capture a title on slide periodically
• Recognize the image
• Record time information when slide was changed
• Make index based on time information

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Merit / Demerit title of slide

• Merit
• Easy to unite multiple slides
• It isn't influenced by animation
• Can become a keyword for search
• Demerit
• Teacher must use same title when he/she wants to
  unite multiple slide

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Use footer of slide

• Capture a footer of slide periodically
• Recognize the image
• Record time information when slide was changed
• Make index based on time information

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Merit / Demerit footer of slide

• Merit
• Teachers dont use effectively
• Easy to unite multiple slides
• It isn't influenced by animation
• Can become a keyword for search
• Demerit
• The footer area is narrow
• Keyword length is short

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Current usage of footer

• Teachers dont use effectively
• Subject title
• Professor name
• Number of times of the lecture

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System design
LR
Teachers PC

• Teacher make lecture slides
• Records a lecture
• Capture
• Recognize
• Make index
• Access from User
• watch lecture video

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User
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This system
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Sample screen of system
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Future works

• Implementation
• Evaluation

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Conclusion

• Playback the necessary part is difficult
• Make index of lecture video using footer
  information
• Merit
• Easy to unite multiple slides
• It isn't influenced by animation
• Implementation
• Evaluation