Paper Abstract and Keywords |
Presentation |
2008-10-06 16:20
A study on Improvement of Intra Prediction of H.264/AVC Shohei Matsuo, Seishi Takamura, Yoshiyuki Yashima (NTT) SIP2008-112 IE2008-76 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper proposes an improved intra prediction method of H.264/AVC. The conventional prediction uses only adjoining pixels as reference pixels. The residual energy could increace if the decoded reference pixels have occlusion which would result in low coding efficiency. In addition, the conventional prediction copies the same weighted prediction value to several of the pixels lying in the prediction direction. However, if the original image has patterns like gradations, the residual energy could increase which would also result in low coding efficiency.
To handle the problems, we separately proposed two improved methods. One allows not only adjoining pixels but also distant pixels to be referred. The other generates prediction signals with a spatial gradient. In this paper, we confirmed the performance of combination of two methods. The simulation results showed the combined method outperformed the single proposed method at high bit-rate. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
H.264/AVC / Intra prediction / Multiple reference lines / Gradient / Occlusion / Gradation / / |
Reference Info. |
IEICE Tech. Rep., vol. 108, no. 229, IE2008-76, pp. 29-34, Oct. 2008. |
Paper # |
IE2008-76 |
Date of Issue |
2008-09-29 (SIP, IE) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
Download PDF |
SIP2008-112 IE2008-76 |
Conference Information |
Committee |
IE SIP IPSJ-SLDM |
Conference Date |
2008-10-06 - 2008-10-07 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Aiina Center (Morioka) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
|
Paper Information |
Registration To |
IE |
Conference Code |
2008-10-IE-SIP-SLDM |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A study on Improvement of Intra Prediction of H.264/AVC |
Sub Title (in English) |
|
Keyword(1) |
H.264/AVC |
Keyword(2) |
Intra prediction |
Keyword(3) |
Multiple reference lines |
Keyword(4) |
Gradient |
Keyword(5) |
Occlusion |
Keyword(6) |
Gradation |
Keyword(7) |
|
Keyword(8) |
|
1st Author's Name |
Shohei Matsuo |
1st Author's Affiliation |
NTT Cyber Space Laboratories (NTT) |
2nd Author's Name |
Seishi Takamura |
2nd Author's Affiliation |
NTT Cyber Space Laboratories (NTT) |
3rd Author's Name |
Yoshiyuki Yashima |
3rd Author's Affiliation |
NTT Cyber Space Laboratories (NTT) |
4th Author's Name |
|
4th Author's Affiliation |
() |
5th Author's Name |
|
5th Author's Affiliation |
() |
6th Author's Name |
|
6th Author's Affiliation |
() |
7th Author's Name |
|
7th Author's Affiliation |
() |
8th Author's Name |
|
8th Author's Affiliation |
() |
9th Author's Name |
|
9th Author's Affiliation |
() |
10th Author's Name |
|
10th Author's Affiliation |
() |
11th Author's Name |
|
11th Author's Affiliation |
() |
12th Author's Name |
|
12th Author's Affiliation |
() |
13th Author's Name |
|
13th Author's Affiliation |
() |
14th Author's Name |
|
14th Author's Affiliation |
() |
15th Author's Name |
|
15th Author's Affiliation |
() |
16th Author's Name |
|
16th Author's Affiliation |
() |
17th Author's Name |
|
17th Author's Affiliation |
() |
18th Author's Name |
|
18th Author's Affiliation |
() |
19th Author's Name |
|
19th Author's Affiliation |
() |
20th Author's Name |
|
20th Author's Affiliation |
() |
Speaker |
Author-1 |
Date Time |
2008-10-06 16:20:00 |
Presentation Time |
25 minutes |
Registration for |
IE |
Paper # |
SIP2008-112, IE2008-76 |
Volume (vol) |
vol.108 |
Number (no) |
no.228(SIP), no.229(IE) |
Page |
pp.29-34 |
#Pages |
6 |
Date of Issue |
2008-09-29 (SIP, IE) |
|