Estimation of projector defocus blur by extracting texture rich region in projection image

Yuji Oyamada*, Hideo Saito

*この研究の対応する著者

    研究成果

    1 被引用数 (Scopus)

    抄録

    To use a projector anytime anywhere, a lot of projector-camera based approaches have been proposed. Focal correction technique, one of them, reduces the effect of defocus blur which occurs when a screen is located out of projector's depth-of-field. To achieve focal correction, we have to estimate the degree of defocus blur on the displayed images. Some previous methods use any special pattern images. A method which needs no special image has been proposed, however, this method can't estimate at less-textured or already blurred region in the projection image. In this paper, we propose a novel method for estimating PSF (Point Spread Function) without projecting any special pattern images. To prevent such an estimation error, we search and extract well-suited regions to estimate PSF in the projection image and estimate the PSF at extracted region. Experimental results show that our method can prevent PSF estimation error without any special images.

    本文言語English
    ホスト出版物のタイトル16th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, WSCG'2008 - In Co-operation with EUROGRAPHICS, Full Papers
    ページ153-160
    ページ数8
    出版ステータスPublished - 2008
    イベント16th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2008, WSCG'2008 - Plzen
    継続期間: 2008 2 42008 2 7

    Other

    Other16th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2008, WSCG'2008
    CityPlzen
    Period08/2/408/2/7

    ASJC Scopus subject areas

    • コンピュータ グラフィックスおよびコンピュータ支援設計
    • コンピュータ ビジョンおよびパターン認識

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