Structurally regular integer discrete cosine transform for low-bit-word-length coefficients

Taizo Suzuki; Masaaki Ikehara

doi:10.1109/ISCAS.2010.5537445

Structurally regular integer discrete cosine transform for low-bit-word-length coefficients

Taizo Suzuki, Masaaki Ikehara

Department of Electronics and Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

This paper presents an IntDCT with only dyadic values such as k/2 ⁿ (k, n ∈ ℕ). Although some IntDCTs have been proposed, they are unsuitable for lossless-to-lossy image coding in low-bit-word-length (coefficients). First, the proposed M-channel lossless WHT (LWHT) can be constructed by only (log₂ M)-bit-word-length and has structural regularity. Then, our 8-channel IntDCT keeps good coding performance even in low-bit-word-length because LWHT, which is main part of IntDCT, can be implemented by 3-bit-word-length. Finally, our method is validated in lossless-to-lossy image coding.

Original language	English
Title of host publication	ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems
Subtitle of host publication	Nano-Bio Circuit Fabrics and Systems
Pages	1607-1610
Number of pages	4
DOIs	https://doi.org/10.1109/ISCAS.2010.5537445
Publication status	Published - 2010 Aug 31
Event	2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010 - Paris, France Duration: 2010 May 30 → 2010 Jun 2

Publication series

Name	ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems

Other

Other	2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010
Country/Territory	France
City	Paris
Period	10/5/30 → 10/6/2

Keywords

Dyadic values
IntDCT
LWHT
Lossless-to-lossy image coding
Low-bit-word-length

ASJC Scopus subject areas

Hardware and Architecture
Electrical and Electronic Engineering

Access to Document

10.1109/ISCAS.2010.5537445

Cite this

Suzuki, T., & Ikehara, M. (2010). Structurally regular integer discrete cosine transform for low-bit-word-length coefficients. In ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems (pp. 1607-1610). [5537445] (ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems). https://doi.org/10.1109/ISCAS.2010.5537445

Structurally regular integer discrete cosine transform for low-bit-word-length coefficients. / Suzuki, Taizo; Ikehara, Masaaki.
ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems. 2010. p. 1607-1610 5537445 (ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Suzuki, T & Ikehara, M 2010, Structurally regular integer discrete cosine transform for low-bit-word-length coefficients. in ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems., 5537445, ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, pp. 1607-1610, 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010, Paris, France, 10/5/30. https://doi.org/10.1109/ISCAS.2010.5537445

Suzuki T, Ikehara M. Structurally regular integer discrete cosine transform for low-bit-word-length coefficients. In ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems. 2010. p. 1607-1610. 5537445. (ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems). doi: 10.1109/ISCAS.2010.5537445

Suzuki, Taizo ; Ikehara, Masaaki. / Structurally regular integer discrete cosine transform for low-bit-word-length coefficients. ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems. 2010. pp. 1607-1610 (ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems).

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abstract = "This paper presents an IntDCT with only dyadic values such as k/2 n (k, n ∈ ℕ). Although some IntDCTs have been proposed, they are unsuitable for lossless-to-lossy image coding in low-bit-word-length (coefficients). First, the proposed M-channel lossless WHT (LWHT) can be constructed by only (log2 M)-bit-word-length and has structural regularity. Then, our 8-channel IntDCT keeps good coding performance even in low-bit-word-length because LWHT, which is main part of IntDCT, can be implemented by 3-bit-word-length. Finally, our method is validated in lossless-to-lossy image coding.",

keywords = "Dyadic values, IntDCT, LWHT, Lossless-to-lossy image coding, Low-bit-word-length",

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Structurally regular integer discrete cosine transform for low-bit-word-length coefficients

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Keywords

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