Generalized block-lifting factorization of M-channel biorthogonal filter banks for lossy-to-lossless image coding

Taizo Suzuki, Masaaki Ikehara, Truong Q. Nguyen

研究成果: Article

22 引用 (Scopus)

抄録

Generalized block-lifting factorization of M-channel (M > 2) biorthogonal filter banks (BOFBs) for lossy-to-lossless image coding is presented in this paper. Since the proposed block-lifting structure is more general than the conventional lifting factorizations and does NOT require many restrictions such as paraunitary, number of channels, and McMillan degree in each building block unlike the conventional lifting factorizations, its coding gain is higher than that of the previous methods. Several proposed BOFBs are designed and applied to image coding. Comparing the results with conventional lossy-to-lossless image coding structures, including the 5/3- and 9/7-tap discrete wavelet transforms in JPEG 2000 and a 4 × 8 hierarchical lapped biorthogonal transform in JPEG XR, the proposed BOFBs achieve better result in both objective measure and perceptual visual quality for the images with a lot of high-frequency components.

元の言語English
記事番号6168264
ページ(範囲)3220-3228
ページ数9
ジャーナルIEEE Transactions on Image Processing
21
発行部数7
DOI
出版物ステータスPublished - 2012 7

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Filter banks
Image coding
Factorization
Discrete wavelet transforms

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Software

これを引用

Generalized block-lifting factorization of M-channel biorthogonal filter banks for lossy-to-lossless image coding. / Suzuki, Taizo; Ikehara, Masaaki; Nguyen, Truong Q.

:: IEEE Transactions on Image Processing, 巻 21, 番号 7, 6168264, 07.2012, p. 3220-3228.

研究成果: Article

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