Fast ITTBC Using Pattern Code on the Subband Segmentation
CHOSUN UNIV KWANGJU (KOREA) DEPT OF ELECTRICAL ENGINEERING
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Iterated Transformation Theory-Based CodingITTBC suffers from very high computational complexity in encoding phase. This is due to its exhaustive search. In this paper our proposed image coding algorithm preprocess an original image to subband segmentation image by wavelet transform before image coding to reduce encoding complexity. A similar block is searched by using the 24 block pattern codes which are coded by the edge information in the image block on the domain pool of the subband segmentation. As a result Numerical data shows that the encoding time of the proposed coding method can be reduced to 98.82 of that of Jacquins method, while the loss in quality relative to the Jacquins is about 0.28dB in PSNR, which is visually negligible.
- Numerical Mathematics