Presentation 2012/2/24
A Fast Interpolation Unit Using Selector Logics
MANAMI IWATA, HIROMINE YOSHIHARA, MASAO YANGISAWA, NOZOMU TOGAWA,
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Abstract(in English) Interpolation is a technique that fills the gaps between existing data, which is often applied to image scaling and superresolution. Cubic spline interpolation, one of the interpolation techniques, obtains a cubic function based on the four existing points and fills their gaps very smoothly and precisely. However, it takes a lot of time because it requires many data and complex calculation. Speeding-up cubic spline interpolation is the key to realize a practical image scaling system. In this paper, we firstly focus on linear interpolation and propose a high-speed linear interpolation circuit based on "selector logics." Secondly, we propose a high-speed cubic spline interpolation circuit composed of our proposed linear interpolation circuits. Experimental results demonstrate that our linear interpolation circuit improves the performance by 15 % and that our cubic interpolation circuit improves the performance by 25 %, compared to a conventional interpolation design.
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Paper # Vol.2012-SLDM-155 No.7,Vol.2012-EMB-24 No.7
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Conference Date 2012/2/24(1days)
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Language JPN
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Title (in English) A Fast Interpolation Unit Using Selector Logics
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1st Author's Name MANAMI IWATA
1st Author's Affiliation Dept. of Computer Science and Engineering, Waseda University()
2nd Author's Name HIROMINE YOSHIHARA
2nd Author's Affiliation Dept. of Computer Science and Engineering, Waseda University
3rd Author's Name MASAO YANGISAWA
3rd Author's Affiliation Dept. of Electronic and Photonic Systems, Waseda University
4th Author's Name NOZOMU TOGAWA
4th Author's Affiliation Dept. of Computer Science and Engineering, Waseda University
Date 2012/2/24
Paper # Vol.2012-SLDM-155 No.7,Vol.2012-EMB-24 No.7
Volume (vol) vol.111
Number (no) 462
Page pp.pp.-
#Pages 6
Date of Issue