A new method for complete-to-overcomplete discrete wavelet transforms
A new method for complete-to-overcomplete discrete wavelet transforms
复制标题
完全到过完全离散小波变换的新方法
DOI：
10.1109/icdsp.2002.1028137
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
J. Cornelis
中科院分区：
文献类型：
--
作者：
Y. Andreopoulos;A. Munteanu;G. V. D. Auwera;P. Schelkens;J. Cornelis
过完全离散小波变换（ODWT）在许多应用中使用，因为它们提供了移位不变性，这在基于小波的图像处理和视频编码中非常有用。在本文中，我们提出了一种从严格采样（完整）DWT的子带开始的ODWT的新构造。我们的理论最直接的应用是带内预测的可扩展视频编码，已经证明该方法具有较低的复杂性。
Overcomplete discrete wavelet transforms (ODWT) are used in a number of applications because they provide shift invariance, a property extremely useful in wavelet-based image processing and video coding. In this paper, we propose a new construction of the ODWT starting from the subbands of the critically sampled (complete) DWT. The most straightforward application of our theory is scalable video coding with in-band prediction, for which it has been shown that the proposed method achieves lower complexity.