Integer DCT based on direct-lifting of DCT-IDCT for lossless-to-lossy image coding

Taizo Suzuki, Masaaki Ikehara

研究成果: Article査読

32 被引用数 (Scopus)

抄録

A discrete cosine transform (DCT) can be easily implemented in software and hardware for the JPEG and MPEG formats. However, even though some integer DCTs (IntDCTs) for lossless-to-lossy image coding have been proposed, such transform requires redesigned devices. This paper proposes a hardware-friendly IntDCT that can be applied to both lossless and lossy coding. Our IntDCT is implemented by direct-lifting of DCT and inverse DCT (IDCT). Consequently, any existing DCT device can be directly applied to every lifting block. Although our method requires a small side information block (SIB), it is validated by its application to lossless-to-lossy image coding.

本文言語English
論文番号5475264
ページ(範囲)2958-2965
ページ数8
ジャーナルIEEE Transactions on Image Processing
19
11
DOI
出版ステータスPublished - 2010 11

ASJC Scopus subject areas

  • ソフトウェア
  • コンピュータ グラフィックスおよびコンピュータ支援設計

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