IEICE TRANSACTIONS on Fundamentals
Improved Half-Pixel Generation for Image Enlargement
Summary :
In this paper, we propose a digital image enlargement method based on a fuzzy technique that improves half-pixel generation, especially for convex and concave signals. The proposed method is a modified version of the image enlargement scheme previously proposed by the authors, which achieves accurate half-pixel interpolation and enlarges the original image by convolution with the Lanczos function. However, the method causes impulse-like artifacts in the enlarged image. In this paper, therefore, we introduce a fuzzy set and fuzzy rule for generating half-pixels to improve the interpolation of convex and concave signals. Experimental results demonstrate that, in terms of image quality, the proposed method shows superior performance compared to bicubic interpolation and our previous method.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E99-A No.11 pp.2012-2015
- Publication Date
- 2016/11/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.E99.A.2012
- Type of Manuscript
- Special Section LETTER (Special Section on Smart Multimedia & Communication Systems)
- Category
- Image
Authors
Keita KOBAYASHI
Kanagawa Institute of Technology
Hiroyuki TSUJI
Kanagawa Institute of Technology
Tomoaki KIMURA
Kanagawa Institute of Technology
Keyword
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Keita KOBAYASHI, Hiroyuki TSUJI, Tomoaki KIMURA, "Improved Half-Pixel Generation for Image Enlargement" in IEICE TRANSACTIONS on Fundamentals,
vol. E99-A, no. 11, pp. 2012-2015, November 2016, doi: 10.1587/transfun.E99.A.2012.
Abstract: In this paper, we propose a digital image enlargement method based on a fuzzy technique that improves half-pixel generation, especially for convex and concave signals. The proposed method is a modified version of the image enlargement scheme previously proposed by the authors, which achieves accurate half-pixel interpolation and enlarges the original image by convolution with the Lanczos function. However, the method causes impulse-like artifacts in the enlarged image. In this paper, therefore, we introduce a fuzzy set and fuzzy rule for generating half-pixels to improve the interpolation of convex and concave signals. Experimental results demonstrate that, in terms of image quality, the proposed method shows superior performance compared to bicubic interpolation and our previous method.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E99.A.2012/_p
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@ARTICLE{e99-a_11_2012,
author={Keita KOBAYASHI, Hiroyuki TSUJI, Tomoaki KIMURA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Improved Half-Pixel Generation for Image Enlargement},
year={2016},
volume={E99-A},
number={11},
pages={2012-2015},
abstract={In this paper, we propose a digital image enlargement method based on a fuzzy technique that improves half-pixel generation, especially for convex and concave signals. The proposed method is a modified version of the image enlargement scheme previously proposed by the authors, which achieves accurate half-pixel interpolation and enlarges the original image by convolution with the Lanczos function. However, the method causes impulse-like artifacts in the enlarged image. In this paper, therefore, we introduce a fuzzy set and fuzzy rule for generating half-pixels to improve the interpolation of convex and concave signals. Experimental results demonstrate that, in terms of image quality, the proposed method shows superior performance compared to bicubic interpolation and our previous method.},
keywords={},
doi={10.1587/transfun.E99.A.2012},
ISSN={1745-1337},
month={November},}
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TY - JOUR
TI - Improved Half-Pixel Generation for Image Enlargement
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2012
EP - 2015
AU - Keita KOBAYASHI
AU - Hiroyuki TSUJI
AU - Tomoaki KIMURA
PY - 2016
DO - 10.1587/transfun.E99.A.2012
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E99-A
IS - 11
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - November 2016
AB - In this paper, we propose a digital image enlargement method based on a fuzzy technique that improves half-pixel generation, especially for convex and concave signals. The proposed method is a modified version of the image enlargement scheme previously proposed by the authors, which achieves accurate half-pixel interpolation and enlarges the original image by convolution with the Lanczos function. However, the method causes impulse-like artifacts in the enlarged image. In this paper, therefore, we introduce a fuzzy set and fuzzy rule for generating half-pixels to improve the interpolation of convex and concave signals. Experimental results demonstrate that, in terms of image quality, the proposed method shows superior performance compared to bicubic interpolation and our previous method.
ER -
English
