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- W3045976128 abstract "In this paper, a new approximate discrete cosine transform (DCT) architecture for an H.265/HEVC video compression codec is proposed. In order to reduce the computational complexity, a configuration of basic elements by 0, ±0.5, ±1 is proposed to improve the DCT coefficient performance. Next, we derive different DCT coefficients for different transform block sizes based on DCT symmetry properties for H.265. Experimental results show that the proposed DCT can increase by 4 dB with a peak signal-to-noise ratio (PSNR) on average compared with general approximate DCT approaches. In comparison with recent approximation DCTs, the proposed architecture cannot only reduce the computational complexity but can also obtain good quality in PSNR. The proposed configurable DCT architecture successfully reduces approximately 40% of the hardware cost for multiple transform blocks." @default.
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- W3045976128 date "2020-07-29" @default.
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- W3045976128 title "A new low-complexity approximate DCT for image and video compression" @default.
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- W3045976128 doi "https://doi.org/10.1080/02533839.2020.1786463" @default.
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