An Efficient DCT Calculation Algorithm for Fast Video Coding 


Vol. 27,  No. 9, pp. 908-915, Sep.  2002


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  Abstract

In this paper, In this paper, we propose an efficient DCT calculation algorithm for fast video encoding. From the theoretical analysis, it is shown that the general DCT can be classified into several partial DCTs according to the SAD obtained in the motion estimation and compensation process. In the proposed algorithm, one of them is selected based on the SAD and applied to reduce the computations required in the DCT and quantization process. The simulation results show that the proposed algorithm achieves computational saving approximately 10% for the 8x8 block and 20% for the 4x4 block without any image degradation and computational overhead.

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  Cite this article

[IEEE Style]

Y. Moon, "An Efficient DCT Calculation Algorithm for Fast Video Coding," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 9, pp. 908-915, 2002. DOI: .

[ACM Style]

Yong-Ho Moon. 2002. An Efficient DCT Calculation Algorithm for Fast Video Coding. The Journal of Korean Institute of Communications and Information Sciences, 27, 9, (2002), 908-915. DOI: .

[KICS Style]

Yong-Ho Moon, "An Efficient DCT Calculation Algorithm for Fast Video Coding," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 9, pp. 908-915, 9. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880