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- W2080629707 abstract "An efficient and fast half-pixel accuracy motion estimation algorithm is introduced and its performance is evaluated in H.263 framework. With respect to motion estimation accuracy, sub-pixel accuracy methods such as 1/2 pixel and 1/4 pixel give more accurate motion estimation of moving object in the picture frame although it requires more computation overhead. Conventional half-pixel search algorithm evaluates cost measure at all of surrounding half-pixel locations of the target integer pixel. The proposed search algorithm, however, reduces the number of computation points to only a half of the conventional half-pixel full search algorithm. Through computer simulation using test video sequences, we demonstrate that the proposed half-pixel accuracy fast search algorithm outperforms the conventional full search method in computation speed by reducing the required number of computation to 50% while it shows only a slight degradation of the reconstructed image quality in terms of PSNR." @default.
- W2080629707 created "2016-06-24" @default.
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- W2080629707 date "2003-01-01" @default.
- W2080629707 modified "2023-09-27" @default.
- W2080629707 title "Half-pixel accuracy fast search in video coding" @default.
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- W2080629707 doi "https://doi.org/10.1109/isspa.2003.1224643" @default.
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