An Improved Bilinear Interpolation Algorithm Using Center Coordinates of Pixels
How to guarantee high image quality is the key point when converting standard-definition television (SDTV) images to high-defmition television (HDTV) images. Unfortunately, the change of pixel shape from rectangular to square makes traditional interpolation methods inappropriate because traditional...
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| Vydané v: | Sensors & transducers Ročník 19; číslo 2; s. 89 |
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| Hlavní autori: | , , , |
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| Jazyk: | English |
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Toronto
IFSA Publishing, S.L
01.02.2013
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| Abstract | How to guarantee high image quality is the key point when converting standard-definition television (SDTV) images to high-defmition television (HDTV) images. Unfortunately, the change of pixel shape from rectangular to square makes traditional interpolation methods inappropriate because traditional methods are based on integer coordinates. In this paper, a novel interpolation algorithm using center coordinates of pixels (IAUCCP) is proposed. The color value of each pixel on HDTV images is revised by correcting the pixel's xy coordinates. Considering the huge enlarging multiples, sharpening treatment is done to the HDTV images after interpolating. Experiments show that our method greatly improves the HDTV image quality comparing with traditional interpolation algorithms. [PUBLICATION ABSTRACT] |
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| AbstractList | How to guarantee high image quality is the key point when converting standard-definition television (SDTV) images to high-defmition television (HDTV) images. Unfortunately, the change of pixel shape from rectangular to square makes traditional interpolation methods inappropriate because traditional methods are based on integer coordinates. In this paper, a novel interpolation algorithm using center coordinates of pixels (IAUCCP) is proposed. The color value of each pixel on HDTV images is revised by correcting the pixel's xy coordinates. Considering the huge enlarging multiples, sharpening treatment is done to the HDTV images after interpolating. Experiments show that our method greatly improves the HDTV image quality comparing with traditional interpolation algorithms. [PUBLICATION ABSTRACT] How to guarantee high image quality is the key point when converting standard-definition television (SDTV) images to high-defmition television (HDTV) images. Unfortunately, the change of pixel shape from rectangular to square makes traditional interpolation methods inappropriate because traditional methods are based on integer coordinates. In this paper, a novel interpolation algorithm using center coordinates of pixels (IAUCCP) is proposed. The color value of each pixel on HDTV images is revised by correcting the pixel's xy coordinates. Considering the huge enlarging multiples, sharpening treatment is done to the HDTV images after interpolating. Experiments show that our method greatly improves the HDTV image quality comparing with traditional interpolation algorithms. |
| Author | Lu, Jing Li, Wei Xia, Min Yang, Ke-Cheng |
| Author_xml | – sequence: 1 givenname: Jing surname: Lu fullname: Lu, Jing – sequence: 2 givenname: Min surname: Xia fullname: Xia, Min – sequence: 3 givenname: Wei surname: Li fullname: Li, Wei – sequence: 4 givenname: Ke-Cheng surname: Yang fullname: Yang, Ke-Cheng |
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| Copyright | Copyright International Frequency Sensor Association Feb 2013 |
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| Snippet | How to guarantee high image quality is the key point when converting standard-definition television (SDTV) images to high-defmition television (HDTV) images.... |
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| SubjectTerms | Algorithms Color Digital video HDTV High definition television Image quality Interpolation Methods Neighborhoods Pixels Quality Television |
| Title | An Improved Bilinear Interpolation Algorithm Using Center Coordinates of Pixels |
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