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- W2023715501 abstract "This paper presents an algorithm to predict interpolative motion compensation (MC) mode without computing interpolative SADs (Sum of Absolute Difference) for B-picture coding in an MPEG-2 video encoder. Firstly, an initial MC mode is selected among forward frame/field MC and backward frame/field MC for each macroblock (MB) in a Bpicture.This is accomplished by comparing four minimum SADs corresponding to the above-mentioned MC modes, and choosing a minimum SAD among them. Secondly, if the SAD corresponding to the selected mode is less than aspecific threshold, we set the selected MC mode to the final MC mode. Otherwise, an MC mode of the current MB is determined between interpolative frame MC and interpolative field MC. If the sum of SADs of forward frame MC mode and backward frame MC mode is less than that of SADs of forward field MC mode and backward field MC mode, the final MC mode is set to an interpolative frame MC. Otherwise, the final MC mode is set to an interpolative field MC mode. Experimental results show that the proposed algorithm is comparable with as brute-force MC mode selection method as in conventional MPEG-2 video encoding. In addition, the proposed algorithm may noticeably reduce the memory bandwidth in implementation of MPEG-2 video encoder." @default.
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- W2023715501 date "2004-01-07" @default.
- W2023715501 modified "2023-10-16" @default.
- W2023715501 title "Interpolative mode prediction for efficient MPEG-2 video encoding" @default.
- W2023715501 doi "https://doi.org/10.1117/12.523905" @default.
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