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In this paper, a new low-complexity distortion estimation method for the H.264 rate-distortion optimized mode decision is proposed. Coding processes, such as discrete cosine transform (DCT), quantization, inverse quantization, inverse DCT, and reconstruction, are needed to compute the distortion in an H.264 encoder. To reduce these computations, we estimate the distortion using coefficients calculated...
The macroblock (MB)-based adaptive interpolation filter method has been considered to be able to achieve high coding efficiency in H.264/AVC. Although the conventional cost functions have showed a good performance in terms of rate and distortion, it still leaves room for improvement. To improve coding efficiency, we introduce a new cost function which considers two bit rates, motion vector and prediction...
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