Two Dimensional Non-separable Adaptive Directional Lifting Structure of Discrete Wavelet Transform
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概要
- 論文の詳細を見る
In this paper, we propose a two dimensional (2D) non-separable adaptive directional lifting (ADL) structure for discrete wavelet transform (DWT) and its image coding application. Although a 2D non-separable lifting structure of 9/7 DWT has been proposed by interchanging some lifting, we generalize a polyphase representation of 2D non-separable lifting structure of DWT. Furthermore, by introducing the adaptive directional filteringingto the generalized structure, the 2D non-separable ADL structure is realized and applied into image coding. Our proposed method is simpler than the 1D ADL, and can select the different transforming direction with 1D ADL. Through the simulations, the proposed method is shown to be efficient for the lossy and lossless image coding performance.
- （社）電子情報通信学会の論文
- 2011-10-01
著者
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Kyochi Seisuke
Keio Univ. Yokohama‐shi Jpn
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Kyochi Seisuke
Department Of Electronics And Electrical Engineering Keio University
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Ikehara Masaaki
Department Of Electronics And Electrical Engineering Keio University
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Ikehara Masaaki
Department Of Electrical Engineering Keio University
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Yoshida Taichi
Department Of Electronics And Electrical Engineering Keio University
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SUZUKI Taizo
College of Engineering, Nihon University
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Suzuki Taizo
College Of Engineering Nihon University
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