SPHERE ABSOLUTE ANGLE DETECTION SYSTEM, SPHERE ACTUATOR, AND POINTING DEVICE
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United States of America Patent
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Issued Date -
Dec 10, 2009
app pub date -
Nov 29, 2007
filing date -
Nov 30, 2006
priority date (Note) -
Abandoned
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Abstract
A sphere absolute angle detecting system (1) comprises a sphere (2) to which a surface image recognition pattern (P) for detecting the absolute angle of the sphere (2) is provided and an image recognition device (3) provided outside the sphere (2). The image recognition pattern (P) can be composed by arranging element patterns (pl) such as a QR code (registered mark) on the surface of the sphere (2). The image recognition device (3) is composed of an image input unit (4) and an input image processing unit (5). From the acquired image information, absolute angle information on the sphere (2) is outputted. In such a way, the detection of the absolute angle of a sphere can be easily performed.
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