Efficient intra prediction in H.264 based on intensity gradient approach

An Chao Tsai; Anand Paul; Jai Ching Wang; Jhing Fa Wang

doi:10.1109/iscas.2007.378665

Efficient intra prediction in H.264 based on intensity gradient approach

An Chao Tsai, Anand Paul, Jai Ching Wang, Jhing Fa Wang

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

8 Scopus citations

Abstract

This study presents an intensity gradient approach to intra prediction in H.264 encoding system, which enhances the performance and efficiency by means of edge orientation of the gradient filter. We propose a pre-processing stage in which eight-orientation feature are extracted from a macro block that selects four modes to be applied to the block among a set of predefined modes. It is shown that by choosing number of modes used in rate-distortion calculation lead to significant enhancement in the performance of intra prediction. The validity of this algorithm is confirmed experimentally. The simulation results indicate that the intensity gradient-based algorithm for intra prediction contributes to the bit-rate reduction compared to that of previous algorithms and saves around 53% of the total encoding time in H.264.

Original language	English
Article number	4253547
Pages (from-to)	3952-3955
Number of pages	4
Journal	Proceedings - IEEE International Symposium on Circuits and Systems
DOIs	https://doi.org/10.1109/iscas.2007.378665
State	Published - 2007
Event	2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007 - New Orleans, LA, United States Duration: 27 May 2007 → 30 May 2007

Access to Document

10.1109/iscas.2007.378665

Cite this

@article{aec266cc13e54b45b0cc214cf42b302b,

title = "Efficient intra prediction in H.264 based on intensity gradient approach",

abstract = "This study presents an intensity gradient approach to intra prediction in H.264 encoding system, which enhances the performance and efficiency by means of edge orientation of the gradient filter. We propose a pre-processing stage in which eight-orientation feature are extracted from a macro block that selects four modes to be applied to the block among a set of predefined modes. It is shown that by choosing number of modes used in rate-distortion calculation lead to significant enhancement in the performance of intra prediction. The validity of this algorithm is confirmed experimentally. The simulation results indicate that the intensity gradient-based algorithm for intra prediction contributes to the bit-rate reduction compared to that of previous algorithms and saves around 53% of the total encoding time in H.264.",

author = "Tsai, {An Chao} and Anand Paul and Wang, {Jai Ching} and Wang, {Jhing Fa}",

year = "2007",

doi = "10.1109/iscas.2007.378665",

language = "???core.languages.en_GB???",

pages = "3952--3955",

journal = "Proceedings - IEEE International Symposium on Circuits and Systems",

issn = "0271-4310",

note = "2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007 ; Conference date: 27-05-2007 Through 30-05-2007",

}

TY - JOUR

T1 - Efficient intra prediction in H.264 based on intensity gradient approach

AU - Tsai, An Chao

AU - Paul, Anand

AU - Wang, Jai Ching

AU - Wang, Jhing Fa

PY - 2007

Y1 - 2007

N2 - This study presents an intensity gradient approach to intra prediction in H.264 encoding system, which enhances the performance and efficiency by means of edge orientation of the gradient filter. We propose a pre-processing stage in which eight-orientation feature are extracted from a macro block that selects four modes to be applied to the block among a set of predefined modes. It is shown that by choosing number of modes used in rate-distortion calculation lead to significant enhancement in the performance of intra prediction. The validity of this algorithm is confirmed experimentally. The simulation results indicate that the intensity gradient-based algorithm for intra prediction contributes to the bit-rate reduction compared to that of previous algorithms and saves around 53% of the total encoding time in H.264.

AB - This study presents an intensity gradient approach to intra prediction in H.264 encoding system, which enhances the performance and efficiency by means of edge orientation of the gradient filter. We propose a pre-processing stage in which eight-orientation feature are extracted from a macro block that selects four modes to be applied to the block among a set of predefined modes. It is shown that by choosing number of modes used in rate-distortion calculation lead to significant enhancement in the performance of intra prediction. The validity of this algorithm is confirmed experimentally. The simulation results indicate that the intensity gradient-based algorithm for intra prediction contributes to the bit-rate reduction compared to that of previous algorithms and saves around 53% of the total encoding time in H.264.

UR - http://www.scopus.com/inward/record.url?scp=34548829664&partnerID=8YFLogxK

U2 - 10.1109/iscas.2007.378665

DO - 10.1109/iscas.2007.378665

M3 - 會議論文

AN - SCOPUS:34548829664

SN - 0271-4310

SP - 3952

EP - 3955

JO - Proceedings - IEEE International Symposium on Circuits and Systems

JF - Proceedings - IEEE International Symposium on Circuits and Systems

M1 - 4253547

T2 - 2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007

Y2 - 27 May 2007 through 30 May 2007

ER -

Efficient intra prediction in H.264 based on intensity gradient approach

Abstract

Access to Document

Fingerprint

Cite this