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- W2731588245 abstract "In this paper, two 8-point multiplication-free DCT approximations based on the Chen's factorization are proposed and their fast algorithms are also derived. Both transformations are assessed in terms of computational cost, error energy, and coding gain. Experiments with a JPEG-like image compression scheme are performed and results are compared with competing methods. The proposed low-complexity transforms are scaled according to Jridi-Alfalou-Meher algorithm to effect 16- and 32-point approximations. The new sets of transformations are embedded into an HEVC reference software to provide a fully HEVC-compliant video coding scheme. We show that approximate transforms can outperform traditional transforms and state-of-the-art methods at a very low complexity cost." @default.
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- W2731588245 date "2017-10-01" @default.
- W2731588245 modified "2023-10-01" @default.
- W2731588245 title "DCT approximations based on Chen’s factorization" @default.
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- W2731588245 doi "https://doi.org/10.1016/j.image.2017.06.014" @default.
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