DocumentCode
2200449
Title
Efficient Fast Algorithm of DCT for H.264/AVC
Author
Xiang Xiaoxuan ; Wang Yan ; Xiang Yangxia ; Chen Dazhi ; Shi Zhengang
Author_Institution
Sch. of Inf. Sci. & Eng., Shenyang Ligong Univ., Shenyang, China
fYear
2010
fDate
1-3 Nov. 2010
Firstpage
76
Lastpage
79
Abstract
This paper presents an efficient fast algorithm to reduce redundant discrete cosine transform (DCT) and quantization computations for H.264/AVC encoding optimization. A mathematic model is established based on analyzing residual coefficients distribution and considering the properties of DCT coefficients´ energy distribution. The experimental results demonstrate that the proposed approach can achieve the best performance in reducing the DCT and quantization (Q) computations and obtain almost the same video quality as the original encoder in H.264/AVC.
Keywords
discrete cosine transforms; quantisation (signal); video coding; DCT coefficient energy distribution; H.264/AVC encoding optimization; mathematic model; quantization computation; redundant discrete cosine transform; residual coefficient distribution; video quality; DCT; H.264/AVC encoding; fast algorithm; quantization;
fLanguage
English
Publisher
ieee
Conference_Titel
Intelligent Networks and Intelligent Systems (ICINIS), 2010 3rd International Conference on
Conference_Location
Shenyang
Print_ISBN
978-1-4244-8548-2
Electronic_ISBN
978-0-7695-4249-2
Type
conf
DOI
10.1109/ICINIS.2010.28
Filename
5693683
Link To Document