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

4 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 - International Conference on Image Processing, ICIP
Pages	1329-1332
DOIs	https://doi.org/10.1109/ICIP.2006.312663
Publication status	Published - 2006
Externally published	Yes

Keywords

All-zero DCT blocks
H.264
Integer DCT

Access to Document

10.1109/ICIP.2006.312663

Cite this

@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",

pages = "1329--1332",

booktitle = "Proceedings - International Conference on Image Processing, ICIP",

}

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)

SP - 1329

EP - 1332

BT - Proceedings - International Conference on Image Processing, ICIP

ER -

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this