| DCI数字电影编解码系统研究 |
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| 引用本文： | 魏芳,王樱澍,李阳.DCI数字电影编解码系统研究[J].北京邮电大学学报,2007,30(5):77-81. |
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| 作者姓名： | 魏芳 王樱澍 李阳 |
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| 作者单位： | 1. 北京邮电大学,信息工程学院,北京,100876
2. 北京邮电大学,电信工程学院,北京,100876 |
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| 摘 要： | 设计了一种数字电影编解码系统，重点研究了该系统中的彩色空间转换、图像压缩编码和数字电影发行文件三大关键技术，并在全计算机软件实现的基础上，对系统进行了优化。实验结果表明，系统完全符合DCI规范，压缩效果理想，编解码速度较快，可供进一步深化研究和应用。
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| 关 键 词： | 数字电影 色彩空间变换 JPEG2000 |
| 文章编号： | 1007-5321(2007)05-0077-05 |
| 收稿时间： | 2007-01-30 |
| 修稿时间： | 2007骞?鏈?0鏃?/revised_time> |
DCI Digital Cinema Coding/Decoding System |
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| WEI Fang,WANG Ying-shu,LI Yang.DCI Digital Cinema Coding/Decoding System[J].Journal of Beijing University of Posts and Telecommunications,2007,30(5):77-81. |
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| Authors: | WEI Fang WANG Ying-shu LI Yang |
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| Affiliation: | 1. School of Information Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China 2. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China; |
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| Abstract: | The framework of a digital cinema coding/decoding system is presented. The three key technologies of this system, colorimetry transformation, image compression and packaging for distribution are studied. Then it is implemented using computer software, with some additional optimization applied to accelerate the computation speed. Experimental results show that, this system completely conforms to the DCI specification, the compression efficiency is high, and the computation speed is fast, which are sufficient for further employment in research and applications. |
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| Keywords: | JPEG2000 |
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