Energy-efficient 8-point DCT Approximations: Theory and Hardware Architectures

Abstract

Due to its remarkable energy compaction properties, the discrete cosine transform (DCT) is employed in a multitude of compression standards, such as JPEG and H.265/HEVC. Several low-complexity integer approximations for the DCT have been proposed for both 1-D and 2-D signal analysis. The increasing demand for low-complexity, energy efficient methods require… (More)
DOI: 10.1007/s00034-015-0233-z

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