Ringing Detector for Deblurring based on Frequency Analysis of PSF

• Item type: Trans(1)
• 公開日: 2011-12-28
• タイトル: Ringing Detector for Deblurring based on Frequency Analysis of PSF
• タイトル / 言語: en
• タイトル: Ringing Detector for Deblurring based on Frequency Analysis of PSF
• 言語: eng
• キーワード / 主題Scheme: Other
• キーワード / 主題: Special Issue on MIRU2010 - Research Paper
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_6501
• 資源タイプ: journal article
• 著者所属: Institute of Scientific and Industrial Research, Osaka University
• 著者所属: Institute of Scientific and Industrial Research, Osaka University
• 著者所属: Institute of Scientific and Industrial Research, Osaka University
• 著者所属(英): en
• 著者所属(英): Institute of Scientific and Industrial Research, Osaka University
• 著者所属(英): en
• 著者所属(英): Institute of Scientific and Industrial Research, Osaka University
• 著者所属(英): en
• 著者所属(英): Institute of Scientific and Industrial Research, Osaka University
• 著者名: Chika, Inoshita; Yasuhiro, Mukaigawa; Yasushi, Yagi
• 著者名(英): Chika, Inoshita; Yasuhiro, Mukaigawa; Yasushi, Yagi
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: Many deblurring techniques have been proposed to restore blurred images resulting from camera motion. A major problem in the restoration process is that the deblurred images often include wave-like artifacts called ringing. In this paper, we propose a ringing detector that distinguishes the ringing artifacts from natural textures included in images. In designing the ringing detector, we focus on the fact that ringing artifacts are caused by the null frequency of the point-spread function. Ringings are detected by evaluating whether the deblurred image contains sine waves corresponding to the null frequencies across the entire image with uniform phase. By combining the ringing detector with a deblurring process, we can reduce ringing artifacts in the restored images. We demonstrate the effectiveness of the proposed ringing detector in experiments with synthetic and real images.
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: Many deblurring techniques have been proposed to restore blurred images resulting from camera motion. A major problem in the restoration process is that the deblurred images often include wave-like artifacts called ringing. In this paper, we propose a ringing detector that distinguishes the ringing artifacts from natural textures included in images. In designing the ringing detector, we focus on the fact that ringing artifacts are caused by the null frequency of the point-spread function. Ringings are detected by evaluating whether the deblurred image contains sine waves corresponding to the null frequencies across the entire image with uniform phase. By combining the ringing detector with a deblurring process, we can reduce ringing artifacts in the restored images. We demonstrate the effectiveness of the proposed ringing detector in experiments with synthetic and real images.
• 書誌レコードID / 収録物識別子タイプ: NCID
• 書誌レコードID / 収録物識別子: AA12394973
• 書誌情報: IPSJ Transactions on Computer Vision and Applications（CVA）; 巻 3, p. 236-247, 発行日 2011-12-28
• ISSN / 収録物識別子タイプ: ISSN
• ISSN / 収録物識別子: 1882-6695
• 出版者 / 言語: ja
• 出版者: 情報処理学会