Study of recognizing multiple persons' complicated hand gestures from the video sequence acquired by a moving camera

Luo Dan, Jun Ohya

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

    Abstract

    Recognizing hand gestures from the video sequence acquired by a dynamic camera could be a useful interface between humans and mobile robots. We develop a state based approach to extract and recognize hand gestures from moving camera images. We improved Human-Following Local Coordinate (HFLC) System, a very simple and stable method for extracting hand motion trajectories, which is obtained from the located human face, body part and hand blob changing factor. Condensation algorithm and PCA-based algorithm was performed to recognize extracted hand trajectories. In last research, this Condensation Algorithm based method only applied for one person's hand gestures. In this paper, we propose a principal component analysis (PCA) based approach to improve the recognition accuracy. For further improvement, temporal changes in the observed hand area changing factor are utilized as new image features to be stored in the database after being analyzed by PCA. Every hand gesture trajectory in the database is classified into either one hand gesture categories, two hand gesture categories, or temporal changes in hand blob changes. We demonstrate the effectiveness of the proposed method by conducting experiments on 45 kinds of sign language based Japanese and American Sign Language gestures obtained from 5 people. Our experimental recognition results show better performance is obtained by PCA based approach than the Condensation algorithm based method.

    Original languageEnglish
    Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
    Volume7527
    DOIs
    Publication statusPublished - 2010
    EventHuman Vision and Electronic Imaging XV - San Jose, CA
    Duration: 2010 Jan 182010 Jan 21

    Other

    OtherHuman Vision and Electronic Imaging XV
    CitySan Jose, CA
    Period10/1/1810/1/21

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    Keywords

    • Condensation Algorithm
    • Dynamic camera image
    • Hand gesture extraction
    • Hand gesture recognition
    • PCA

    ASJC Scopus subject areas

    • Applied Mathematics
    • Computer Science Applications
    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

    Cite this

    Dan, L., & Ohya, J. (2010). Study of recognizing multiple persons' complicated hand gestures from the video sequence acquired by a moving camera. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7527). [75271N] https://doi.org/10.1117/12.838759