"Is it as I left it?": a computer vision aid for the blind

Jorge A Martinez-Alarcon, Stephen J. McKenna

    Research output: Chapter in Book/Report/Conference proceedingChapter

    2 Citations (Scopus)


    Blind people navigate safely through a familiar room based on strong expectations about the location of objects. If something has been moved, added or removed, it can present a difficulty and potentially a danger. This paper reports a novel prototype vision-based monitoring application developed as part of research into supportive home environments. It uses ceiling-mounted cameras to monitor rooms in the home for significant changes and automatically generates spoken warnings when appropriate. Significant object-level changes are detected and characterized based on fused region-level change detection modules. These use complementary pixel-level change detectors to obtain a degree of invariance to illumination changes. Results obtained using realistic video data are presented.
    Original languageEnglish
    Title of host publicationConference Proceedings - IEEE International Conference on Systems, Man and Cybernetics
    Subtitle of host publicationThe Hague; Netherlands; 10 October 2004 through 13 October 2004
    Place of PublicationPiscataway, N.J.
    Number of pages6
    ISBN (Print)0780385667
    Publication statusPublished - 1 Jan 2004


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