A FILTER BANK FOR THE DIRECTIONAL DECOMPOSITION OF IMAGES - THEORY AND DESIGN
A FILTER BANK FOR THE DIRECTIONAL DECOMPOSITION OF IMAGES - THEORY AND DESIGN
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DOI：
10.1109/78.127960
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发表时间：
1992-04-01
影响因子：
5.4
通讯作者：
SMITH, MJT
中科院分区：
文献类型：
--
作者：
BAMBERGER, RH;SMITH, MJT
本文介绍了一种方向性二维滤波器组，它具有对各个通道进行临界采样而不丢失信息的特性。 分量滤波器的通带区域是楔形的，因此提供方向信息。 它示出，这些滤波器组的输出可以被最大限度地抽取，以实现最小的样本表示的方式，允许原始信号被精确地重建。 本文讨论了方向分解的理论和与最大抽取和重构相关的问题。 此外，实现问题的解决，其中考虑基于递归和非递归过滤器的实现。
This paper introduces a directionally oriented 2-D filter bank with the property that the individual channels may be critically sampled without loss of information. The passband regions of the component filters are wedge shaped and thus provide directional information. It is shown that these filter bank outputs may be maximally decimated to achieve a minimum sample representation in a way that permits the original signal to be exactly reconstructed. The paper discusses the theory for directional decomposition and the issues associated with maximum decimation and reconstruction. In addition, implementation issues are addressed where realizations based on both recursive and nonrecursive filters are considered.