HIGH PERFORMANCE VIDEO CODING TECHNIQUE BASED ON HYBRID TRANSFORMATION | ||
| JES. Journal of Engineering Sciences | ||
| Article 10, Volume 39, No 1, January and February 2011, Pages 135-143 PDF (147.96 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.21608/jesaun.2011.119706 | ||
| Author | ||
| Usama Sayed Mohammed | ||
| Electrical Engineering Department,Faculty of Engineering,Assiut University, Assiut, Egypt | ||
| Abstract | ||
| This paper describes a computationally efficient hybrid video coding scheme. The proposed hybrid coding scheme combines the advantages of simple hardware complexity of the 3-D discrete cosine transform coding and the high performance of the 3-D set partitioning in hierarchical tree (3-D SPIHT) coding. The modification of the subband video data in the wavelet domain is done based on the DCT transformation and the classification of the coefficient in the low-frequency video subband (LL). The modification process provides a new subband video data containing almost the same information of the original one but having smaller values of the wavelet coefficient. Simulation results of the proposed method demonstrate that, with a small addition in the computational complexity of the coding process, the PSNR performance of the proposed algorithm is much higher than that of the 3-D SPIHT test coder. | ||
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