| 基于提升算法JPEG2000小波变换的硬件实现 |
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| 引用本文： | 文康益,陈迪平,王镇道,刘文用.基于提升算法JPEG2000小波变换的硬件实现[J].微计算机信息,2006,22(35):141-143. |
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| 作者姓名： | 文康益 陈迪平 王镇道 刘文用 |
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| 作者单位： | 1. 410082,湖南省长沙市湖南大学应用物理系微电子教研室
2. 410082,长沙市湖南大学应用物理系 |
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| 摘 要： | 提出了一种基于提升算法的高效JPEG2000二维离散小波变换(2D-DWT)硬件结构,将边界延拓内嵌于离散小波变换过程中,减少了所需的内存空间和功耗。采用W扫描输入方式和行列并行处理结构,加快了变换速度,大大提高了小波变换的效率。整个二维离散小波变换结构已经通过FPGA硬件仿真验证。
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| 关 键 词： | 小波变换 提升方法 |
| 文章编号： | 1008-0570(2006)12-2-0141-03 |
| 修稿时间： | 2006年6月27日 |
A Hardware Implementation for JPEG2000 Wavelet Transforms Based on Lifting Scheme |
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| WEN KANGYI,CHEN DIPING,WANG ZHENDAO,LIU WENYONG.A Hardware Implementation for JPEG2000 Wavelet Transforms Based on Lifting Scheme[J].Control & Automation,2006,22(35):141-143. |
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| Authors: | WEN KANGYI CHEN DIPING WANG ZHENDAO LIU WENYONG |
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| Abstract: | A high efficiency architecture that performed a lifting-based 2-D discrete wavelet transform (2D-DWT) in JPEG2000 is proposed.Memory requirement and power consumption can be reduced by combining the data-extension procedure into the DWT core. With W-scan and parallel architecture,the transform speed and the efficiency is increased. The architecture had been simulated and testified by hardware of FPGA. |
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| Keywords: | VLSI JPEG2000 |
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