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To objectively evaluate the coding efficiency of video codecs, Bjøntegaard Delta PSNR (BD-PSNR) was proposed. Based on the rate-distortion (R-D) curve fitting, BD-PSNR is able to provide a good evaluation of the R-D performance. However, BD-PSNR has a critical drawback: It doesn't take the coding complexity into account. Clearly for practical video applications, especially for those on handheld devices,...
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