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Author

Sim, Jae-Young
Visual Information Processing Lab (VIP Lab)
Research Interests
  • Image processing, computer vision, 3D visual processing, signal processing

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Optimal binary encoding scheme for the fast motion estimation based on Hamming distances

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Title
Optimal binary encoding scheme for the fast motion estimation based on Hamming distances
Author
Park, Sang-UKSim, Jae-YoungKim, Chang-SuLee, Sang-UK
Keywords
Absolute difference; Block Matching; Conventional techniques; Fast motion estimation; Mean squared error; Memory bandwidths; Optimal binary codes; Video encodings
Issue Date
201305
Publisher
IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
Citation
IEICE Electronics Express, v.10, no.10, pp.1 - 6
Abstract
Optimal binary codes for pixel values are designed for accurate block matching in the fast motion estimation. The conventional binary block matching techniques reduce the computational complexity and the memory bandwidth for the motion estimation, but they degrade the matching accuracy. We find the optimal mapping function between the set of decimal numbers for uniformly quantized pixel values and the set of binary codes, so that the weighted sum of mean squared errors between the absolute differences and the Hamming distances is minimized. Experimental results show that the proposed three-bit binary code set yields about 0.4 dB gain over the conventional techniques.
URI
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DOI
http://dx.doi.org/10.1587/elex.10.20130160
ISSN
1349-2543
Appears in Collections:
ECE_Journal Papers
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