INFORMATION-PROCESSING DEVICE, METHOD THEREOF AND DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Nov 22, 2012
app pub date -
Jan 15, 2010
filing date -
Jan 15, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electronic blackboard device calculates a pointed position and a side shape of a pointer on a display surface based on a state of receiving reflected light from the pointer at first and second infrared cameras. Subsequently, a pointed position image obtained by taking an image of the pointed position from an entirety of the display surface is acquired and a color of the pointer is recognized by processing the pointed position image. Then, a drawn image of a color corresponding to the pointed position, side shape and color of the pointer is displayed and only the drawn image of a predetermined color is displayed upon a drawn image designation request while displaying the drawn image.
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