Abstract:In this paper, a low complexity coding unit (CU)-level rate and distortion estimation scheme is proposed for High Efficiency Video Coding (HEVC) hardware-friendly implementation where a Walsh-Hadamard transform (WHT)-based low-complexity integer discrete cosine transform (DCT) is employed for distortion estimation. Since HEVC adopts quadtree structures of coding blocks with hierarchical coding depths, it becomes more difficult to estimate accurate rate and distortion values without actually performing transfor… Show more
“…This method leads to a 2.03% averaged bitrate increment in all intra coding. Lee et al [17] propose a new low-complexity integer DCT approach based on WHT. The rate is then estimated by the number of nonzero quantized coefficients and the distortion is estimated in the transform domain.…”
Section: Pe-based Systematic Design For Complex Rate-distortion Optimmentioning
“…This method leads to a 2.03% averaged bitrate increment in all intra coding. Lee et al [17] propose a new low-complexity integer DCT approach based on WHT. The rate is then estimated by the number of nonzero quantized coefficients and the distortion is estimated in the transform domain.…”
Section: Pe-based Systematic Design For Complex Rate-distortion Optimmentioning
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