抄録
We propose a QoS adaptation method for streaming video playback for portable computing devices where the playback quality of each video fragment is automatically adjusted from the remaining battery amount, desirable playback duration and the user's preference for each fragment. In our method, we assume that video segments (or shots) are classified into some predefined categories. Each user specifies the relative importance among categories and preferred video properties, such as proportion between motion speed and vividness for each category. From this information, playback quality and the properties of each category are determined so that the video playback can last for the specified duration within the battery amount. We have implemented a video streaming system consisting of a transcoder for PCs and a video player for PDAs.
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キーワード
- classification
- meta data
- portable computers
- quality of service
- transcoding
- video signal processing
- video streaming
- MPEG-7 meta information
- PC transcoder
- PDA video player
- automatically adjusted playback quality
- classified video segments
- energy-aware QoS adaptation method
- motion speed
- portable computing devices
- predefined categories
- streaming video playback
- video fragment user preference
- video shot vividness
- Battery management systems
- Games
- Information management
- Information processing
- Information science
- MPEG 7 Standard
- Personal digital assistants
- Portable computers
- Satellite broadcasting
- Streaming media
詳細情報 詳細情報について
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- CRID
- 1050577309352968448
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- NII論文ID
- 120006659725
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- HANDLE
- 10061/11361
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- 本文言語コード
- en
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- 資料種別
- conference paper
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- データソース種別
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- IRDB
- CiNii Articles