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Multiplication-free one-bit transform for low-complexity block-based motion estimation
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DOI：10.1109/LSP.2006.882088.png)
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Abstract
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A multiplication-free one-bit transform (1BT) for low-complexity block-based motion estimation is presented in this letter. A novel filter kernel is utilized to construct the 1BT of image frames using addition and shift operations only. It is shown that the proposed approach provides the same motion estimation accuracy at macro-block level and even better accuracy for smaller block sizes compared to previously proposed 1BT methods. Because the proposed 1BT approach does not require multiplication operations, it can be implemented in integer arithmetic using addition and shifts only, reducing the computational complexity, processing time, as well as power consumption.
Keywords:
block matching
motion estimation
one-bit transform (1BT)
video coding
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