Defocus blur correcting projector-camera system

Yuji Oyamada, Hideo Saito

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    9 Citations (Scopus)

    Abstract

    To use a projector anytime anywhere, a lot of projector-camera based approaches have been proposed. In this paper, we focus on a focal correction technique, one of projector-camera based approaches, reduces an effect of defocus blur which occurs when a screen is located out of projector's depth-of-field. We propose a novel method for estimating projector defocus blur on a planar screen without any special measuring images. To estimate a degree of defocus blur accurate, we extract sub-region which is well-suited for defocus blur estimation in a projection image and estimate the degree of defocus blur at each extracted region. To remove the degradation caused by the defocus blur, we pre-correct the projection image depends on the degree of defocus blur before projection. Experimental results show that our method can estimate the degree of defocus blur without projecting any special images and pre-corrected image can reduce the effect of the defocus blur.

    Original languageEnglish
    Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
    Pages453-464
    Number of pages12
    Volume5259 LNCS
    DOIs
    Publication statusPublished - 2008
    Event10th International Conference on Advanced Concepts for Intelligent Vision Systems, ACIVS 2008 - Juan-les-Pins
    Duration: 2008 Oct 202008 Oct 24

    Publication series

    NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
    Volume5259 LNCS
    ISSN (Print)03029743
    ISSN (Electronic)16113349

    Other

    Other10th International Conference on Advanced Concepts for Intelligent Vision Systems, ACIVS 2008
    CityJuan-les-Pins
    Period08/10/2008/10/24

    Keywords

    • Defocus blur
    • Focal correction
    • Projector-camera system

    ASJC Scopus subject areas

    • Computer Science(all)
    • Theoretical Computer Science

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  • Cite this

    Oyamada, Y., & Saito, H. (2008). Defocus blur correcting projector-camera system. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 5259 LNCS, pp. 453-464). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 5259 LNCS). https://doi.org/10.1007/978-3-540-88458-3-41