High-resolution and Low-bit-rate Lecture-Video Distributing System for Chalk-and-Talk Based Lectures
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- SAKAMOTO Ryota
- Graduate School of Engineering, Mie University
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- SUGIURA Tokuhiro
- Center for Information Technologies and Networks, Mie University
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- NOMURA Yoshihiko
- Mie University
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- KATO Norihiko
- Graduate School of Engineering, Mie University
Bibliographic Information
- Other Title
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- 高精細低容量な板書講義映像生成システム
- コウセイサイ テイヨウリョウ ナ バンショ コウギ エイゾウ セイセイ システム
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Abstract
We proposed the high-resolution and low-bit-rate lecture-video distributing system for the chalk-and-talk based lectures. The preliminary experiment on the VoD based e-lecture showed that students are conscious of the following two issues: (1) written letters are legible and (2) the lecturer's indicating position is recognizable. In consideration of these, we proposed a high-resolution and low-bit-rate lecture-video distributing system for chalk-and-talk based lectures. The proposed system superimposes two kinds of camera images: one is low-resolution video from a digital camcorder and the other, the high-resolution image sequences from a digital still camera. The subjective assessment experiment showed the effectiveness of the proposed system.
Journal
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- Japan Journal of Educational Technology
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Japan Journal of Educational Technology 33 (1), 41-49, 2009
Japan Society for Educational Technology
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Details 詳細情報について
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- CRID
- 1390282680206520192
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- NII Article ID
- 110007331921
- 10031016721
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- NII Book ID
- AA11964147
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- ISSN
- 21896453
- 13498290
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- NDL BIB ID
- 10377931
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed