| 医学图像多分辨率编码在PACS中的应用 |
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| 引用本文： | 李晴辉.医学图像多分辨率编码在PACS中的应用[J].重庆大学学报(自然科学版),2004,27(3):94-96. |
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| 作者姓名： | 李晴辉 |
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| 作者单位： | 第三军医大学,西南医院信息科,重庆,400038 |
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| 摘 要： | 在医学图像管理与传输系统(PACS)中需要高效率地传输和浏览医学图像资料,而多分辨率图像编码是提高图像压缩效率的重要措施.通过研究二维图像小波变换的迭代特征,提出了一种适用于PACS系统的医学图像多分辨率编码算法,该算法优先对频率较低的子带图像进行编码,再依次对频率较高的子带图像进行编码;在传输和回放时先处理频率较低的子带图像,再依次处理频率较高的子带图像.实验表明,该算法可以有效地提高PACS中医学图像传输和回放的速度.
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| 关 键 词： | 医学图像 多分辨率 小波变换 图像管理与传输系统 |
| 文章编号： | 1000-582X(2004)03-0094-03 |
| 修稿时间： | 2003年11月20日 |
Multi-yesolution Encoding of Medical Image in PACS |
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| LI Qing-hui.Multi-yesolution Encoding of Medical Image in PACS[J].Journal of Chongqing University(Natural Science Edition),2004,27(3):94-96. |
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| Authors: | LI Qing-hui |
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| Abstract: | It is necessary to transmit and review medical images effectively in PACS (Picture Archive & Communication System, PACS) , and multi -resolution encoding can improve image compression efficiency. The progressive property of 2D image wavelet transform is studied, and a multi - resolution medical image encoding method is described. This encoding method means that, the lower frequency subimage in wavelet domain should be encoded prior to those higher frequency subimage. Also, in the medical image process of transmission and reviewing, the same order will be followed. The experiment has improved that the proposed method can speedup the medical image transmission and reviewing in PACS effectively. |
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| Keywords: | medical image multi-resolution wavelet transform PACS |
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