中国计算机自动测量与控制技术协会——《计算机测量与控制》杂志社 关键字： H.264，MPEG-4，压缩编码标准 [gap=1049]Key Words: H.264, MPEG-4, Compression and coding standard
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The image coding and compression technologies based on the JPEG2000 standard is studied in this article, which focus on region-of-interest (ROI) compression and EBCOT optimization algorithm.
本文主要基于JPEG2000标准来研究图像编码和压缩相关技术，其重点是感兴趣区域（ROI）的压缩和EBCOT算法的优化。
Some studies of the experimental data show that, H. 264 is much better than the other existing video coding standard in the SNR, compression efficiency and visual effects.
一些研究的实验数据表明，H . 264在信噪比，压缩效率和视觉效果方面，都远远好于现有的其它视频编码标准。
Firstly, we provide an overview of MPEG-4 video compression encoding standard, chiefly introduce the basic coding principle and encoding scheme based on content.
本文首先对MPEG - 4编码标准原理进行了综述，并介绍了该标准的基本编码原理和基于内容的编码体系。
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