General splitting and merging of 2-D DCT in the DCT domain

Yuh Jue Chuang; Ting Jian Pan; Ja Ling Wu

General splitting and merging of 2-D DCT in the DCT domain

Yuh Jue Chuang^*, Ting Jian Pan, Ja Ling Wu

^*Corresponding author for this work

National Taiwan University

Research output: Contribution to journal › Conference article › peer-review

Abstract

An efficient method for splitting an N×N 2-D DCT block into four (N/2)×(N/2) or two N×(N/2) (or (N/2)×N) 2-D DCT blocks is presented and vice versa. The computational complexity of the proposed methods is lower than the direct approach and the same as the most efficient converting approach existed in the literature. Besides, the proposed DCT splitter/merger is suitable for implementation by specific multimedia instruction set available nowadays. When IV = 8, our method can be applied to realize the transcoding between the latest video coding standards AVC/H.264 and the older ones, such as MPEG-1, MPEG-2 and MPEG-4 part 2.

Original language	English
Pages (from-to)	I17-I20
Journal	Midwest Symposium on Circuits and Systems
Volume	1
State	Published - 2004
Externally published	Yes
Event	The 2004 47th Midwest Symposium on Circuits and Systems - Conference Proceedings - Hiroshima, Japan Duration: 25 07 2004 → 28 07 2004

Cite this

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title = "General splitting and merging of 2-D DCT in the DCT domain",

abstract = "An efficient method for splitting an N×N 2-D DCT block into four (N/2)×(N/2) or two N×(N/2) (or (N/2)×N) 2-D DCT blocks is presented and vice versa. The computational complexity of the proposed methods is lower than the direct approach and the same as the most efficient converting approach existed in the literature. Besides, the proposed DCT splitter/merger is suitable for implementation by specific multimedia instruction set available nowadays. When IV = 8, our method can be applied to realize the transcoding between the latest video coding standards AVC/H.264 and the older ones, such as MPEG-1, MPEG-2 and MPEG-4 part 2.",

author = "Chuang, {Yuh Jue} and Pan, {Ting Jian} and Wu, {Ja Ling}",

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journal = "Midwest Symposium on Circuits and Systems",

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note = "The 2004 47th Midwest Symposium on Circuits and Systems - Conference Proceedings ; Conference date: 25-07-2004 Through 28-07-2004",

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T1 - General splitting and merging of 2-D DCT in the DCT domain

AU - Chuang, Yuh Jue

AU - Pan, Ting Jian

AU - Wu, Ja Ling

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N2 - An efficient method for splitting an N×N 2-D DCT block into four (N/2)×(N/2) or two N×(N/2) (or (N/2)×N) 2-D DCT blocks is presented and vice versa. The computational complexity of the proposed methods is lower than the direct approach and the same as the most efficient converting approach existed in the literature. Besides, the proposed DCT splitter/merger is suitable for implementation by specific multimedia instruction set available nowadays. When IV = 8, our method can be applied to realize the transcoding between the latest video coding standards AVC/H.264 and the older ones, such as MPEG-1, MPEG-2 and MPEG-4 part 2.

AB - An efficient method for splitting an N×N 2-D DCT block into four (N/2)×(N/2) or two N×(N/2) (or (N/2)×N) 2-D DCT blocks is presented and vice versa. The computational complexity of the proposed methods is lower than the direct approach and the same as the most efficient converting approach existed in the literature. Besides, the proposed DCT splitter/merger is suitable for implementation by specific multimedia instruction set available nowadays. When IV = 8, our method can be applied to realize the transcoding between the latest video coding standards AVC/H.264 and the older ones, such as MPEG-1, MPEG-2 and MPEG-4 part 2.

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M3 - 会议文章

AN - SCOPUS:11144242169

SN - 1548-3746

VL - 1

SP - I17-I20

JO - Midwest Symposium on Circuits and Systems

JF - Midwest Symposium on Circuits and Systems

T2 - The 2004 47th Midwest Symposium on Circuits and Systems - Conference Proceedings

Y2 - 25 July 2004 through 28 July 2004

ER -

General splitting and merging of 2-D DCT in the DCT domain

Abstract

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