The current ROI coding methods either have high computational cost or cannot control the relative quality of progressive decoded images.
当前的ROI编码算法不能控制渐进解码图像的相对质量或是计算量太大。
Region Of Interest (ROI) coding is an important technology presented by JPEG2000. However, JPEG2000 can not support arbitrary-shape ROI and any scaling value at the same time.
感兴趣区(ROI)编码是在JPEG2000中提出的一种重要的技术，然而JPEG2000算法却无法同时支持任意形状roi和任意提升因子。
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。
A new ROI video coding method is presented based on MPEG-4.
本文提出了一种基于MPEG 4的感兴趣区域视频编码新方法。
JPEG2000 is a new international standard for still image coding and provides many new features, such as progressive recovery of image by fidelity or resolution and region of interest (ROI) coding.
JPEG2000是一种新的静止图像编码国际标准，它提供了诸如基于失真度及分辨率的图像渐进恢复，感兴趣区域编码等新特性。
The application of Set Partitioning in Hierarchical Trees (SPIHT) to the image coding of arbitrarily shaped Region of Interest (ROI) is investigated.
研究了等级树集分割编码方法(SPIHT)在任意形状感兴趣区域(ROI)编码中的应用。
The redundancy is about 10 to 20 percents. An ROI-first transmission method of scalable video coding is proposed.
提出了一种感兴趣区域优先传输的可伸缩视频编码传输方法。
Finally, the bit lifting on ROI is combined with SPIHT algorithm, accomplishing the image coding.
最后，将感兴趣区域比特位提升与SPIHT编码算法结合，完成了图像的压缩编码。
Finally, the bit lifting on ROI is combined with SPIHT algorithm, accomplishing the image coding.
最后，将感兴趣区域比特位提升与SPIHT编码算法结合，完成了图像的压缩编码。
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