An Adaptive Extension of Combined 2D and 1D-Directional Filter Banks

被引：1

作者：

Tanaka, Yuichi ^{[1
]}

Ikehara, Masaaki ^{[2
]}

Nguyen, Truong Q. ^{[3
]}

机构：

[1] Utsunomiya Univ, IS Dept, Utsunomiya, Tochigi 3218585, Japan

[2] Keio Univ, EEE Dept, Yokohama, Kanagawa 2238522, Japan

[3] Univ Calif San Diego, ECE Dept, La Jolla, CA 92093 USA

来源：

ISCAS: 2009 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-5 | 2009年

基金：

日本学术振兴会;

关键词：

WAVELET TRANSFORM; IMAGE;

D O I：

10.1109/ISCAS.2009.5118232

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we propose an extension of combined 2D and 1D-directional filter banks (TODFBs) with adaptive approach in their 1D-directional stages. TODFBs show better performance in image coding and denoising compared to the traditional wavelet transform (WT), however, they still have possibilities to improve their performance in image coding by adopting the adaptive directional WTs for their 1D-directional stages. An efficient method to determine the transform directions is also proposed. In image coding results, our proposed filter banks gain PSNR and visual quality improvements compared with the WTs and the non-adaptive TODFBs.

引用

页码：2193 / +

页数：2

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