Down-Sized decoding of H.264/AVC with low decoding complexity

Author

Luong Pham Van ; Hoyoung Lee ; Jaehwan Kim ; Byeungwoo Jeon

Author_Institution

Sch. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon, South Korea

fYear

2011

fDate

2-4 Aug. 2011

Firstpage

58

Lastpage

61

Abstract

In this paper, we propose a method for down-sized decoding of H.264/AVC with low decoding complexity. The method extracts the DC values of blocks in reconstructed pictures without full decoding. The DC values are divided by 4 to make the down-sized pictures of reconstructed frames. For intra-coded blocks, the intra prediction mode of a block and DC values of neighboring blocks are used to obtain DC value of the block. The motion compensation (MC) is modified to obtain DC value of an inter-coded block by referring to DC values of reference pictures. Experimental results show that the decoding complexity can be reduced up to 77% while maintaining the acceptable subjective quality for down-sized images.

Keywords

decoding; image reconstruction; motion compensation; video coding; DC value; H.264/AVC; down-sized decoding; down-sized image; down-sized picture; intracoded block; intraprediction mode; low decoding complexity; motion compensation; reconstructed frame; Complexity theory; Decoding; Discrete cosine transforms; Encoding; Image reconstruction; Mobile handsets; Motion compensation; H.264/AVC; broadcasting application; decoding complexity; down-sized decoding; mobile application;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Technologies for Communications (ATC), 2011 International Conference on

Conference_Location

Da Nang

ISSN

2162-1020

Print_ISBN

978-1-4577-1206-7

Type

conf

DOI

10.1109/ATC.2011.6027435

Filename

6027435