| 基于FPGA的快速LADT压缩算法的改进及其实现 |
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| 引用本文： | 刘俊刚,杨永明,韦建敏.基于FPGA的快速LADT压缩算法的改进及其实现[J].重庆大学学报(自然科学版),2007,30(5):75-78. |
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| 作者姓名： | 刘俊刚 杨永明 韦建敏 |
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| 作者单位： | 重庆大学,电气工程学院,高电压与电工新技术教育部重点实验室,重庆,400030;重庆大学,电气工程学院,高电压与电工新技术教育部重点实验室,重庆,400030;重庆大学,电气工程学院,高电压与电工新技术教育部重点实验室,重庆,400030 |
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| 摘 要： | 提出了一种应用于心电图像的改进折线逐次逼近(LADT)压缩算法.该算法既减少了数学运算量又适用于硬件实现.通过仿真实验验证,采用该算法,既保持了压缩比较高和失真小的优点,又得到了良好的实时压缩效果.设计了基于FPGA的心电信号压缩处理硬件电路,实现了改进的压缩算法,并进行了心电信号数据压缩实验,实验结果验证了该方法的有效性.
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| 关 键 词： | LADT算法 改进 数据压缩 FPGA |
| 文章编号： | 1000-582X（2007）05-0075-04 |
| 修稿时间： | 2007-01-20 |
Application of Improved Fast-LADT Arithmetic Based on FPGA |
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| LIU Jun-gang,YANG Yong-ming,WEI Jian-min.Application of Improved Fast-LADT Arithmetic Based on FPGA[J].Journal of Chongqing University(Natural Science Edition),2007,30(5):75-78. |
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| Authors: | LIU Jun-gang YANG Yong-ming WEI Jian-min |
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| Abstract: | This paper puts forward an improved fast-LADT arithmetic in application of electrocardiogram(ECG) compression.The arithmetic has much less mathematical operation and much easier to be implemented in hardware.With the artificial and experimental verification,it turns to be that the arithmetic keeps rather high compress ratio,has the advantages of small distortion and has the nicer results in real tine.The hardware system of ECG data compression is designed,implements the improved fast-LADT arithmetic,the experiment of ECG data compression also has been carried out,and the experiment results prove the validity of the arithmetic. |
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| Keywords: | LADT arithmetic improved data compression FPGA |
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