Pointing position detection device, presentation system and method

The present invention relates to a pointing position detection device that can automatically sense a pointing position within a display region. This pointing position detection device comprises a CCD camera acquiring an image of a display region in which an image has been displayed; a binary-data pr...

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Bibliographic Details
Main Authors NAKAMURA, JUNICHI, HIRAMATSU, KAZUNORI, FURIHATA, TAKESHI, YONENO, KUNIO
Format Patent
LanguageEnglish
French
German
Published 06.10.1999
Edition6
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The present invention relates to a pointing position detection device that can automatically sense a pointing position within a display region. This pointing position detection device comprises a CCD camera acquiring an image of a display region in which an image has been displayed; a binary-data processing section for detecting a pointing position of a shadow region or an actual image region that is an image region of a pointing image included within an image-acquisition area, based on an image-acquisition signal of the CCD camera 14; and a pointing coordinates detection section.
Bibliography:Application Number: EP19990302501