Adaptive directional wavelet transform based on directional prefiltering

Yuichi Tanaka, Madoka Hasegawa, Shigeo Kato, Masaaki Ikehara, Truong Q. Nguyen

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

This paper proposes an efficient approach for adaptive directional wavelet transform (WT) based on directional prefiltering. Although the adaptive directional WT is able to transform an image along diagonal orientations as well as traditional horizontal and vertical directions, it sacrifices computation speed for good image coding performance. We present two efficient methods to find the best transform directions by prefiltering using 2-D filter bank or 1-D directional WT along two fixed directions. The proposed direction calculation methods achieve comparable image coding performance comparing to the conventional one with less complexity. Furthermore, transform direction data of the proposed method can be used for content-based image retrieval to increase retrieval ratio.

Original languageEnglish
Article number5356189
Pages (from-to)934-945
Number of pages12
JournalIEEE Transactions on Image Processing
Volume19
Issue number4
DOIs
Publication statusPublished - 2010 Apr

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Wavelet transforms
Image coding
Filter banks
Image retrieval

Keywords

  • Adaptive directional wavelet transform
  • Directional filter bank
  • Directional lifting
  • Image coding
  • Wavelet transform

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Software

Cite this

Adaptive directional wavelet transform based on directional prefiltering. / Tanaka, Yuichi; Hasegawa, Madoka; Kato, Shigeo; Ikehara, Masaaki; Nguyen, Truong Q.

In: IEEE Transactions on Image Processing, Vol. 19, No. 4, 5356189, 04.2010, p. 934-945.

Research output: Contribution to journalArticle

Tanaka, Yuichi ; Hasegawa, Madoka ; Kato, Shigeo ; Ikehara, Masaaki ; Nguyen, Truong Q. / Adaptive directional wavelet transform based on directional prefiltering. In: IEEE Transactions on Image Processing. 2010 ; Vol. 19, No. 4. pp. 934-945.
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