发明名称 |
Pointing device offering good operability at low cost |
摘要 |
A pointing device includes a sensor obtaining image information, and an image producing unit producing a comparison image at predetermined time intervals by lowering a spatial resolution of an image based on the image information obtained by the sensor and increasing a density resolution of the image based on the image information. The device arithmetically obtains a correlation value indicating a correlation between a predetermined region in a first comparison image among the plurality of comparison images produced by the image producing unit and a predetermined region in a second comparison image produced after the first comparison image.
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申请公布号 |
US2006066572(A1) |
申请公布日期 |
2006.03.30 |
申请号 |
US20050235378 |
申请日期 |
2005.09.27 |
申请人 |
NATIONAL UNIVERSITY CORPORATION NARA INSTITUTE OFSCIENCE AND TECHNOLOGY |
发明人 |
YUMOTO MANABU;NAKANO TAKAHIKO;URATA TAKUJI;MIYATA SOHICHI;UEDA JUN;OGASAWARA TSUKASA |
分类号 |
G09G5/08 |
主分类号 |
G09G5/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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