Effectively detecting all-zero DCT blocks for H.264 optimization

Hanli WANG; Sam KWONG; Chi-Wah KOK

doi:10.1109/ICIP.2006.312663

Effectively detecting all-zero DCT blocks for H.264 optimization

Hanli WANG, Sam KWONG, Chi-Wah KOK

Research output: Book Chapters | Papers in Conference Proceedings › Conference paper (refereed) › Research › peer-review

5 Citations (Scopus)

Abstract

This paper presents a novel efficient algorithm to reduce redundant DCT and quantization computations for H.264 encoding. A theoretical analysis is performed to study the sufficient condition for DCT coefficients to be quantized to zeros in H.264. As a result, a more tight sufficient condition is derived to early detect all-zero 4x4 DCT blocks. Compared with other algorithms, the proposed algorithm provides a more precise and efficient condition to predict all-zero DCT blocks. The experimental results demonstrate that the proposed algorithm outperforms other algorithms in terms of all the evaluated performances. ©2006 IEEE.

Original language	English
Title of host publication	Proceedings of the 2006 International Conference on Image Processing
Publisher	IEEE
Pages	1329-1332
Number of pages	4
ISBN (Print)	1424404800
DOIs	https://doi.org/10.1109/ICIP.2006.312663
Publication status	Published - 2006
Externally published	Yes
Event	2006 IEEE International Conference on Image Processing - ATLANTA MARRIOTT MARQUIS, Atlanta, United States Duration: 8 Oct 2006 → 11 Oct 2006

Conference

Conference	2006 IEEE International Conference on Image Processing
Abbreviated title	ICIP 2006
Country/Territory	United States
City	Atlanta
Period	8/10/06 → 11/10/06

Keywords

All-zero DCT blocks
H.264
Integer DCT

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10.1109/ICIP.2006.312663

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@inproceedings{dee72b04457d4517b269f7664779f863,

title = "Effectively detecting all-zero DCT blocks for H.264 optimization",

abstract = "This paper presents a novel efficient algorithm to reduce redundant DCT and quantization computations for H.264 encoding. A theoretical analysis is performed to study the sufficient condition for DCT coefficients to be quantized to zeros in H.264. As a result, a more tight sufficient condition is derived to early detect all-zero 4x4 DCT blocks. Compared with other algorithms, the proposed algorithm provides a more precise and efficient condition to predict all-zero DCT blocks. The experimental results demonstrate that the proposed algorithm outperforms other algorithms in terms of all the evaluated performances. {\textcopyright}2006 IEEE.",

keywords = "All-zero DCT blocks, H.264, Integer DCT",

author = "Hanli WANG and Sam KWONG and Chi-Wah KOK",

year = "2006",

doi = "10.1109/ICIP.2006.312663",

language = "English",

isbn = "1424404800",

pages = "1329--1332",

booktitle = "Proceedings of the 2006 International Conference on Image Processing",

publisher = "IEEE",

note = "2006 IEEE International Conference on Image Processing, ICIP 2006 ; Conference date: 08-10-2006 Through 11-10-2006",

}

TY - GEN

T1 - Effectively detecting all-zero DCT blocks for H.264 optimization

AU - WANG, Hanli

AU - KWONG, Sam

AU - KOK, Chi-Wah

PY - 2006

Y1 - 2006

N2 - This paper presents a novel efficient algorithm to reduce redundant DCT and quantization computations for H.264 encoding. A theoretical analysis is performed to study the sufficient condition for DCT coefficients to be quantized to zeros in H.264. As a result, a more tight sufficient condition is derived to early detect all-zero 4x4 DCT blocks. Compared with other algorithms, the proposed algorithm provides a more precise and efficient condition to predict all-zero DCT blocks. The experimental results demonstrate that the proposed algorithm outperforms other algorithms in terms of all the evaluated performances. ©2006 IEEE.

AB - This paper presents a novel efficient algorithm to reduce redundant DCT and quantization computations for H.264 encoding. A theoretical analysis is performed to study the sufficient condition for DCT coefficients to be quantized to zeros in H.264. As a result, a more tight sufficient condition is derived to early detect all-zero 4x4 DCT blocks. Compared with other algorithms, the proposed algorithm provides a more precise and efficient condition to predict all-zero DCT blocks. The experimental results demonstrate that the proposed algorithm outperforms other algorithms in terms of all the evaluated performances. ©2006 IEEE.

KW - All-zero DCT blocks

KW - H.264

KW - Integer DCT

UR - http://www.scopus.com/inward/record.url?scp=57649092784&partnerID=8YFLogxK

U2 - 10.1109/ICIP.2006.312663

DO - 10.1109/ICIP.2006.312663

M3 - Conference paper (refereed)

SN - 1424404800

SP - 1329

EP - 1332

BT - Proceedings of the 2006 International Conference on Image Processing

PB - IEEE

T2 - 2006 IEEE International Conference on Image Processing

Y2 - 8 October 2006 through 11 October 2006

ER -

Effectively detecting all-zero DCT blocks for H.264 optimization

Abstract

Conference

Keywords

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