Presentation 2011-12-16
Hierarchical Predefined Codebook based Image Enlargement and Its FPGA Implementation
Hakaru TAMUKOH, Hideaki KAWANO, Noriaki SUETAKE, Masatoshi SEKINE, Byungki CHA, Takashi ASO,
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Abstract(in English) The codebook based method, which consists of a relationship of high- and low-frequency image components, achieves a high-quality image enlargement with high-frequency component augmentation. However, a codebook search process takes too much calculation time and it is not appropriate for a real-time application such as a moving image enlargement. To solve this problem, we propose a hierarchical predefined codebook to reduce the calculation cost and design a massively parallel and pipelined digital hardware architecture to realize the real-time codebook search. Simulation results show that the proposed method is 40 times faster than the ordinary method, and its FPGA implementation achieves a performance of around 54 fps for VGA size image enlargement.
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Keyword(in English) Image Enlargement / Codebook / FPGA
Paper # SIS2011-51
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Committee SIS
Conference Date 2011/12/8(1days)
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Registration To Smart Info-Media Systems (SIS)
Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Hierarchical Predefined Codebook based Image Enlargement and Its FPGA Implementation
Sub Title (in English)
Keyword(1) Image Enlargement
Keyword(2) Codebook
Keyword(3) FPGA
1st Author's Name Hakaru TAMUKOH
1st Author's Affiliation Institute of Engineering, Tokyo University of Agriculture and Technology()
2nd Author's Name Hideaki KAWANO
2nd Author's Affiliation Faculty of Engineering, Kyushu Institute of Technology
3rd Author's Name Noriaki SUETAKE
3rd Author's Affiliation Graduate School of Science and Engineering, Yamaguchi University
4th Author's Name Masatoshi SEKINE
4th Author's Affiliation Institute of Engineering, Tokyo University of Agriculture and Technology
5th Author's Name Byungki CHA
5th Author's Affiliation Faculty of Management and Information Sciences, Kyushu Institute of Information Sciences
6th Author's Name Takashi ASO
6th Author's Affiliation Faculty of Management and Information Sciences, Kyushu Institute of Information Sciences
Date 2011-12-16
Paper # SIS2011-51
Volume (vol) vol.111
Number (no) 342
Page pp.pp.-
#Pages 5
Date of Issue