发明名称 |
Coordinated position control system, coordinate position control method, and computer-readable storage medium containing a computer program for coordinate position controlling recorded thereon |
摘要 |
When an operator operates a pointing device, a direction computing section computes a movement vector from an image photographed by an image sensor, and when the movement vector is larger than a threshold, a direction correcting section determines the movement vector as invalid based on the recognition that the movement vector was caused by an abrupt change in the illumination or other conditions, and outputs only movement vectors that are smaller than the threshold to a coordinate position updating section.
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申请公布号 |
US6411278(B1) |
申请公布日期 |
2002.06.25 |
申请号 |
US19990347194 |
申请日期 |
1999.07.02 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA;DIGITAL STREAM CORPORATION |
发明人 |
KAGE HIROSHI;FUNATSU EIICHI;AOYAGI TETSUJI;SUZUKI HAJIME |
分类号 |
G06F3/033;G06F3/038;G06F3/042;G06T7/20;(IPC1-7):G09G5/08 |
主分类号 |
G06F3/033 |
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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