Workshop on Visual Computing and Multimedia (VCM 2006)
A Fast Video Encoding Algorithm by Skipping the Operations on Zero-Valued DCT Coefficients
Kook-Yeol Yoo1 
| (1) |
School of EECS, Yeungnam University, 214-1 Dae-Dong, Kyungsan-City, Kyungpook 712-749, South Korea |
Abstract
In this paper, we propose a computation-efficient DCT-based encoding algorithm for the standard video encoders. Most video
coding standards consist of DCT and associated modules such as quantization, zigzag scan, VLC (Variable Length Coders). Commercial
and standard video encoders implement the modules independently. In this paper, the relationship between the function modules
is investigated and the unnecessary operations are removed. The simulation results show that the proposed method reduces the
computation complexity of IDCT by 40 % compared with standard implementation.
This research was supported by the MIC (Ministry of Information and Communication), Korea, under the ITRC (Information Technology
Research Center) support program supervised by the IITA (Institute of Information Technology Assessment).