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This work is to explore a frequency-domain down-sizing method which preserves picture quality and consumes low complexity in a video decoder. The conventional frequency-domain down-sizing methods usually yield a drift error owing to frequency-domain coefficient truncation and motion compensation using small reference frames. The proposed method can overcome this drawback by using non-zero coefficient...
In H.264/AVC, multiple reference frames are adopted to enhance inter-predictive coding efficiency of motion estimation/compensation. However, memory cost is also increased with the number of used reference frames. This work presents a size-controllable memory reduction method to accommodate multiple reference frames at a limited memory size. This scheme is to store some of Macro-Blocks (MBs) as compressed...
Based on the radix-4 Booth algorithm, a scheme that integrates tap folding and coefficient folding is proposed to design a programmable finite impulse response (FIR) architecture with low power dissipation. In addition, without increasing hardware complexity and degrading computational performance, the effective selection on input data is realized to lower the operating frequencies of the latches...
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