|
|||||
|
|
| 一种基于ridgelet和wavelet的混合编码压缩算法 | |
| 引用本文： | 舒正华,邹道文,汪胜前,刘国栋,邓松.一种基于ridgelet和wavelet的混合编码压缩算法[J].江西师范大学学报(自然科学版),2007,31(2):111-114. |
| 作者姓名： | 舒正华 邹道文 汪胜前 刘国栋 邓松 |
| 作者单位： | 1. 江西师范大学,物理与通信电子学院,江西,南昌,330027 2. 江西科技师范学院,光电子与通信重点实验室,江西,南昌,330013 3. 武汉理工大学,信息学院,湖北,武汉,430000 |
| 摘 要： | 星云图和MPEG-4中运动补偿后得到的残差图像通常是点线奇异性明显的图像.小波变换是表示点奇异性的有效工具,脊波变换(ridgelet)是表示线奇异性的理想工具.该文基于二者的优点提出了一种基于脊波变换和小波变换的混合编码框架用来处理压缩点线奇异性明显的图像.实验结果表明这种混合编码可以有效地对点线奇异性明显的图像进行编码,其效果优于基于单独的小波变换的SPIHT编码和脊波变换的SPIHT编码. |
| 关 键 词： | 小波变换 有限脊波变换 编码 SPIHT MAD |
| 文章编号： | 1000-5862（2007）02-0111-04 |
| 修稿时间： | 2006-03-18 |
A Hybrid Coder Scheme Based on the Ridgelet and Wavelet Transform |
|
| SHU Zheng-hua,ZOU Dao-wen,WANG Sheng-qian,LIU Guo-dong,DENG Song.A Hybrid Coder Scheme Based on the Ridgelet and Wavelet Transform[J].Journal of Jiangxi Normal University (Natural Sciences Edition),2007,31(2):111-114. | |
| Authors: | SHU Zheng-hua ZOU Dao-wen WANG Sheng-qian LIU Guo-dong DENG Song |
| Abstract: | Galaxy images and motion compensated images in MPEG4 are typically zero-dimensional and linear singularities images.Wavelet transform is a powerful instrument in catching zero-dimensional singularities.Ridgelet are a powerful instrument in catching and representing mono-dimensional singularities in bidimensional space.Based on their strongpoint we propose an adaptive hybrid video coder scheme using ridgelet and wavelet transform that compresses zero-dimensional and linear singularities images.Experimental results show that the adaptive hybrid video coder scheme can effectually code zero-dimensional and linear singularities images,performs much better than separately the Compression Algorithm using FRIT with Modified SPIHT and the Compression Algorithm using wavelet Transformation with Modified SPIHT. |
| Keywords: | wavelet ridgelet coding SPIHT MAD |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |