Comments on "Subband coding of images using asymmetrical filterbanks"

被引：0

作者：

Wei, D ^{[1
]}

Bovik, AC ^{[1
]}

机构：

[1] Univ Texas, Dept Elect & Comp Engn, Lab Image & Video Engn, Austin, TX 78712 USA

来源：

IEEE TRANSACTIONS ON IMAGE PROCESSING | 1999年 / 8卷 / 01期

关键词：

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

In the above paper,(1) Egger and Li presented a set of two-channel filterbanks, asymmetrical filterbanks (AFB's), for image coding applications. The basic properties of these filters are Linear-phase, perfect reconstruction, asymmetric lengths for dual filters, and maximum regularity. In this correspondence, we point out that the proposed AFB's are not new in the sense that the proposed construction is equivalent to the factorization of Lagrange halfband filters, which has been reported by other researchers. In addition, we correct an error in the formulation of constructing AFB's in their paper.

引用

页码：122 / 124

页数：3

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