Pointing position detection device, presentation system, and method, and computer-readable medium
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United States of America Patent
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Jan 28, 2003
Grant Date -
N/A
app pub date -
Mar 26, 1999
filing date -
Mar 31, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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.
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Family
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Cited Art Landscape
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