Presentation 2019-03-14
[Poster Presentation] Image Super-Resolution via Generative Adversarial Network Considering Objective Quality
Hiroya Yamamoto, Daichi Kitahara, Akira Hirabayashi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We propose a super-resolution method based on a conventional technique using the generative adversarial network (GAN). The conventional method suffers from pixel-wise black or white artifacts. This is because the number of training data was not sufficient for a network with huge parameters. To solve this problem, we exploit the observation error by adding it to the conventional cost function. This guarantees the consistency for training examples, but not for a novel input data after training. Hence, we further introduce the orthogonal projection onto a linear manifold, in which the observation error is completely zero. These two ideas enable us to produce high quality super-resolution results without the artifact. Simulation results show the effectiveness of the proposed method.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Image Super-Resolution / Generative Adversarial Network / Orthogonal Projection
Paper # EA2018-115,SIP2018-121,SP2018-77
Date of Issue 2019-03-07 (EA, SIP, SP)

Conference Information
Committee EA / SIP / SP
Conference Date 2019/3/14(2days)
Place (in Japanese) (See Japanese page)
Place (in English) i+Land nagasaki (Nagasaki-shi)
Topics (in Japanese) (See Japanese page)
Topics (in English) Engineering/Electro Acoustics, Signal Processing, Speech, and Related Topics
Chair Suehiro Shimauchi(Kanazawa Inst. of Tech.) / Shogo Muramatsu(Niigata Univ.) / Yoichi Yamashita(Ritsumeikan Univ.)
Vice Chair Kenichi Furuya(Oita Univ.) / Kanji Watanabe(Akita Pref. Univ.) / Naoyuki Aikawa(TUS) / Kazunori Hayashi(Osaka City Univ) / Akinobu Ri(Nagoya Inst. of Tech.)
Secretary Kenichi Furuya(Shizuoka Inst. of Science and Tech.) / Kanji Watanabe(NHK) / Naoyuki Aikawa(Takushoku Univ.) / Kazunori Hayashi(Hiroshima Univ.) / Akinobu Ri(Kyoto Univ.)
Assistant Keisuke Imoto(Ritsumeikan Univ.) / Daisuke Morikawa(Toyama Pref Univ.) / Katsumi Konishi(Hosei Univ.) / hyihsin(Takushoku Univ.) / Tomoki Koriyama(Tokyo Inst. of Tech.) / Satoshi Kobashikawa(NTT)

Paper Information
Registration To Technical Committee on Engineering Acoustics / Technical Committee on Signal Processing / Technical Committee on Speech
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Poster Presentation] Image Super-Resolution via Generative Adversarial Network Considering Objective Quality
Sub Title (in English)
Keyword(1) Image Super-Resolution
Keyword(2) Generative Adversarial Network
Keyword(3) Orthogonal Projection
1st Author's Name Hiroya Yamamoto
1st Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
2nd Author's Name Daichi Kitahara
2nd Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
3rd Author's Name Akira Hirabayashi
3rd Author's Affiliation Ritsumeikan University(Ritsumeikan Univ.)
Date 2019-03-14
Paper # EA2018-115,SIP2018-121,SP2018-77
Volume (vol) vol.118
Number (no) EA-495,SIP-496,SP-497
Page pp.pp.93-98(EA), pp.93-98(SIP), pp.93-98(SP),
#Pages 6
Date of Issue 2019-03-07 (EA, SIP, SP)