The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Une technique d'accentuation des bords d'image avec correction de phase pour une image numérique est présentée. Dans cet article, les fonctions d'étalement des points d'un objectif à focale unique standard et d'un objectif zoom sont étudiées avec plusieurs ouvertures différentes. Et à partir de cette enquête, le modèle de figure de phase de Fourier de la fonction d'étalement de points est identifié. La technique ici comprend une synthèse traditionnelle (un opérateur laplacien) et une synthèse de phase uniquement avec la phase de Fourier corrigée. La phase de Fourier de l'image originale non floue est estimée de manière récursive et est utilisée pour la mise en œuvre de la synthèse de phase uniquement, qui est puissante pour la netteté des bords de l'image. Une propriété visuelle humaine est également introduite en tant que fonction de poids afin de maintenir la douceur naturelle du niveau de gris de l'image traitée résultante. Des exemples de simulation montrent que la technique proposée est supérieure à la technique traditionnelle.
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Hiroshi KONDO, Lifeng ZHANG, "Image Edge Sharpening with Phase Correction" in IEICE TRANSACTIONS on Information,
vol. E82-D, no. 8, pp. 1200-1209, August 1999, doi: .
Abstract: An image edge sharpening technique with phase correction for digital image is presented. In this paper the point spread functions of a typical standard single focal lens and zoom lens are investigated with a several different apertures. And from this investigation the Fourier phase figure pattern of the point-spread function is identified. The technique here includes a traditional one (a Laplacian operator) and phase-only synthesis with the corrected Fourier phase. The Fourier phase of the original non-blurred image is estimated recursively and it is utilized for implementation of the phase-only synthesis, which is powerful for image edge sharpening. A human visual property is also introduced as a weight function in order to maintain the natural smoothness in the gray level of the resulting processed image. Simulation examples show that the proposed technique is superior to the traditional one.
URL: https://global.ieice.org/en_transactions/information/10.1587/e82-d_8_1200/_p
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@ARTICLE{e82-d_8_1200,
author={Hiroshi KONDO, Lifeng ZHANG, },
journal={IEICE TRANSACTIONS on Information},
title={Image Edge Sharpening with Phase Correction},
year={1999},
volume={E82-D},
number={8},
pages={1200-1209},
abstract={An image edge sharpening technique with phase correction for digital image is presented. In this paper the point spread functions of a typical standard single focal lens and zoom lens are investigated with a several different apertures. And from this investigation the Fourier phase figure pattern of the point-spread function is identified. The technique here includes a traditional one (a Laplacian operator) and phase-only synthesis with the corrected Fourier phase. The Fourier phase of the original non-blurred image is estimated recursively and it is utilized for implementation of the phase-only synthesis, which is powerful for image edge sharpening. A human visual property is also introduced as a weight function in order to maintain the natural smoothness in the gray level of the resulting processed image. Simulation examples show that the proposed technique is superior to the traditional one.},
keywords={},
doi={},
ISSN={},
month={August},}
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TY - JOUR
TI - Image Edge Sharpening with Phase Correction
T2 - IEICE TRANSACTIONS on Information
SP - 1200
EP - 1209
AU - Hiroshi KONDO
AU - Lifeng ZHANG
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E82-D
IS - 8
JA - IEICE TRANSACTIONS on Information
Y1 - August 1999
AB - An image edge sharpening technique with phase correction for digital image is presented. In this paper the point spread functions of a typical standard single focal lens and zoom lens are investigated with a several different apertures. And from this investigation the Fourier phase figure pattern of the point-spread function is identified. The technique here includes a traditional one (a Laplacian operator) and phase-only synthesis with the corrected Fourier phase. The Fourier phase of the original non-blurred image is estimated recursively and it is utilized for implementation of the phase-only synthesis, which is powerful for image edge sharpening. A human visual property is also introduced as a weight function in order to maintain the natural smoothness in the gray level of the resulting processed image. Simulation examples show that the proposed technique is superior to the traditional one.
ER -