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Review of the current and future technologies for video compression |
Lu YU*1,2, Jian-peng WANG1,2 |
1 Institute of Information and Communication Engineering,ZhejiangUniversity,Hangzhou310027,China
2 Key Laboratory of Integrated Information Network Technology of Zhejiang Province, Hangzhou 310027, China
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Abstract Many important developments in video compression technologies have occurred during the past two decades. The block-based discrete cosine transform with motion compensation hybrid coding scheme has been widely employed by most available video coding standards, notably the ITU-T H.26xand ISO/IEC MPEG-xfamilies and video part of China audio video coding standard (AVS). The objective of this paper is to provide a review of the developments of the four basic building blocks of hybrid coding scheme, namely predictive coding, transform coding, quantization and entropy coding, and give theoretical analyses and summaries of the technological advancements. We further analyze the development trends and perspectives of video compression, highlighting problems and research directions.
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Received: 09 November 2009
Published: 30 November 2009
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Fund: Project (No. 2009CB320903) supported by the National Basic Re-search Program (973) of China |
Review of the current and future technologies for video compression
Many important developments in video compression technologies have occurred during the past two decades. The block-based discrete cosine transform with motion compensation hybrid coding scheme has been widely employed by most available video coding standards, notably the ITU-T H.26xand ISO/IEC MPEG-xfamilies and video part of China audio video coding standard (AVS). The objective of this paper is to provide a review of the developments of the four basic building blocks of hybrid coding scheme, namely predictive coding, transform coding, quantization and entropy coding, and give theoretical analyses and summaries of the technological advancements. We further analyze the development trends and perspectives of video compression, highlighting problems and research directions.
关键词:
Video compression,
Predictive coding,
Transform coding,
Quantization,
Entropy coding,
Theoretical analysis
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