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Hierarchical motion estimation in Hadamard transform domain

Hierarchical motion estimation in Hadamard transform domain

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The authors propose a hierarchical motion estimation algorithm in which the sum of the absolute difference in the Hadamard transform domain is used as its matching measure. The computational complexity of this algorithm was reduced to ~5.6% while the image degradation of its reconstructed image quality was < 0.1 dB on average, compared with that of the full search in the pixel domain.

Inspec keywords: motion estimation; video coding; image reconstruction; Hadamard transforms; computational complexity

Other keywords: reconstructed image quality; computational complexity; hierarchical motion estimation algorithm; hierarchical motion estimation; absolute difference; pixel domain; image degradation; matching measure; Hadamard transform domain

Subjects: Image processing and restoration; Image recognition; Computer vision and image processing techniques; Image and video coding; Video signal processing; Signal processing theory

References

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      • S. Lee , J.-M. Kim , S.-I. Chae . New motion estimation algorithm using adaptively quantized low bit-resolutionimage and its VLSI architecture for MPEG2 video encoding. IEEE Trans. Circuits Syst. Video Technol. , 6 , 734 - 744
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      • ISO/MPEG II:‘Coded representation of picture and audio information -test model 5’.Doc. AVC-491, Apr. 1993.
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