Restoration of defocus blur image based on global phase coherence

Le Cui; Wenrui Ding; Yiyun Man; Dong Wang

doi:10.1109/CISP.2009.5304202

Restoration of defocus blur image based on global phase coherence

Le Cui^*
, Wenrui Ding
, Yiyun Man
, Dong Wang

^*Corresponding author for this work

Institute of Unmanned System

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

In this paper, a novel approach of defocus blur image restoration is proposed, which is based on Global Phase Coherence (GPC). As a good sharpness indicator, GPC was testified to be effective for restoration of defocus blur image. Since a deconvolution kernel was designed based on Wiener filter, the additive noise was able to be estimated in several flat regions, which are selected by Normalized Total Variation (NTV) measurement. Moreover, according to the unimodal property between GPC of images obtained via deconvolution and estimated defocus blur radius, a "Pyramid" search is adopted to determine the exact blur radius and restore the image. The experimental results reveal that the proposed method was particularly effective for defocus blur image even with additive noises.

Original language	English
Title of host publication	Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09
DOIs	https://doi.org/10.1109/CISP.2009.5304202
State	Published - 2009
Event	2009 2nd International Congress on Image and Signal Processing, CISP'09 - Tianjin, China Duration: 17 Oct 2009 → 19 Oct 2009

Publication series

Name	Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09

Conference

Conference	2009 2nd International Congress on Image and Signal Processing, CISP'09
Country/Territory	China
City	Tianjin
Period	17/10/09 → 19/10/09

Keywords

Defocus blur
Global phase coherence
Image restoration

Access to Document

10.1109/CISP.2009.5304202

Cite this

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title = "Restoration of defocus blur image based on global phase coherence",

abstract = "In this paper, a novel approach of defocus blur image restoration is proposed, which is based on Global Phase Coherence (GPC). As a good sharpness indicator, GPC was testified to be effective for restoration of defocus blur image. Since a deconvolution kernel was designed based on Wiener filter, the additive noise was able to be estimated in several flat regions, which are selected by Normalized Total Variation (NTV) measurement. Moreover, according to the unimodal property between GPC of images obtained via deconvolution and estimated defocus blur radius, a {"}Pyramid{"} search is adopted to determine the exact blur radius and restore the image. The experimental results reveal that the proposed method was particularly effective for defocus blur image even with additive noises.",

keywords = "Defocus blur, Global phase coherence, Image restoration",

author = "Le Cui and Wenrui Ding and Yiyun Man and Dong Wang",

year = "2009",

doi = "10.1109/CISP.2009.5304202",

language = "英语",

isbn = "9781424441310",

series = "Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09",

booktitle = "Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09",

note = "2009 2nd International Congress on Image and Signal Processing, CISP'09 ; Conference date: 17-10-2009 Through 19-10-2009",

}

Cui, L, Ding, W, Man, Y & Wang, D 2009, Restoration of defocus blur image based on global phase coherence. in Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09., 5304202, Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09, 2009 2nd International Congress on Image and Signal Processing, CISP'09, Tianjin, China, 17/10/09. https://doi.org/10.1109/CISP.2009.5304202

Restoration of defocus blur image based on global phase coherence. / Cui, Le; Ding, Wenrui; Man, Yiyun et al.
Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09. 2009. 5304202 (Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Restoration of defocus blur image based on global phase coherence

AU - Cui, Le

AU - Ding, Wenrui

AU - Man, Yiyun

AU - Wang, Dong

PY - 2009

Y1 - 2009

N2 - In this paper, a novel approach of defocus blur image restoration is proposed, which is based on Global Phase Coherence (GPC). As a good sharpness indicator, GPC was testified to be effective for restoration of defocus blur image. Since a deconvolution kernel was designed based on Wiener filter, the additive noise was able to be estimated in several flat regions, which are selected by Normalized Total Variation (NTV) measurement. Moreover, according to the unimodal property between GPC of images obtained via deconvolution and estimated defocus blur radius, a "Pyramid" search is adopted to determine the exact blur radius and restore the image. The experimental results reveal that the proposed method was particularly effective for defocus blur image even with additive noises.

AB - In this paper, a novel approach of defocus blur image restoration is proposed, which is based on Global Phase Coherence (GPC). As a good sharpness indicator, GPC was testified to be effective for restoration of defocus blur image. Since a deconvolution kernel was designed based on Wiener filter, the additive noise was able to be estimated in several flat regions, which are selected by Normalized Total Variation (NTV) measurement. Moreover, according to the unimodal property between GPC of images obtained via deconvolution and estimated defocus blur radius, a "Pyramid" search is adopted to determine the exact blur radius and restore the image. The experimental results reveal that the proposed method was particularly effective for defocus blur image even with additive noises.

KW - Defocus blur

KW - Global phase coherence

KW - Image restoration

UR - https://www.scopus.com/pages/publications/73849107573

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DO - 10.1109/CISP.2009.5304202

M3 - 会议稿件

AN - SCOPUS:73849107573

SN - 9781424441310

T3 - Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09

BT - Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09

T2 - 2009 2nd International Congress on Image and Signal Processing, CISP'09

Y2 - 17 October 2009 through 19 October 2009

ER -

Restoration of defocus blur image based on global phase coherence

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Keywords

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