首页> 外文会议>Conference on Wavelets: Applications in Signal and Image Processing Ⅸ Jul 30-Aug 1, 2001, San Diego, USA >A library of biorthogonal wavelet transforms originated from polynomial splines
【24h】

A library of biorthogonal wavelet transforms originated from polynomial splines

机译:来自多项式样条的双正交小波变换库

获取原文
获取原文并翻译 | 示例

摘要

We present a library of biorthogonal wavelet transforms and the related library of biorthogonal symmetric waveforms. For the construction we use interpolatory, quasiinterpolatory and smoothing splines with finite masks (local splines). With this base we designed a set of perfect reconstruction infinite and finite impulse response filter banks with linear phase property. The construction is performed in a "lifting" manner. The developed technique allows to construct wavelet transforms with arbitrary prescribed properties such as the number of vanishing moments, shape of wavelets, and frequency resolution. Moreover, the transforms contain some scalar control parameters which enable their flexible tuning in either time or frequency domains. The transforms are implemented in a fast way. The transforms, which are based on interpolatory splines, are implemented through recursive filtering. We present encouraging results towards image compression.
机译:我们提出了一个双正交小波变换库和相关的双正交对称波形库。对于构造,我们使用带有有限遮罩的局部插值,准插值和平滑样条线(局部样条线)。在此基础上,我们设计了一组具有线性相位特性的完美重构无限和有限冲激响应滤波器组。该构造以“提升”方式执行。所开发的技术允许构造具有任意规定属性(例如消失力矩的数量,小波形状和频率分辨率)的小波变换。此外,这些变换包含一些标量控制参数,从而可以在时域或频域中灵活地进行调整。转换以快速方式实现。这些基于插值样条的变换是通过递归过滤实现的。我们提出了令人鼓舞的图像压缩结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号