
US Patent No: 4,803,645
Number of patents in Portfolio can not be more than 2000
Method and apparatus for measuring coordinates
Stats
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Feb 7, 1989
Issued date -
Sep 18, 1986
filing date -
06/909,254
serial no -
Expired
status
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Abstract
A coordinates measuring method in which the image information of the same point are derived as first, second and third information when viewed from at least three different directions, a first corresponding point is determined by deriving the correlation between the first and second information, and a second corresponding point is determined by deriving the correlation between the second and third information, and mismatching is decided when the first and second coordinates are not substantially coincident with each other.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,660,970 Method and apparatus for the contact-less measuring of objects | 113 | 1984 | |
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| 4,343,553 Shape testing apparatus | 41 | 1980 | |
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| 4,674,869 Method and apparatus for electro-optically determining dimension, location and altitude of objects | 58 | 1985 | |
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| 4,688,184 System for measuring three-dimensional coordinates | 14 | 1985 | |
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| 4,654,872 System for recognizing three-dimensional objects | 61 | 1984 | |
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| 4,573,191 Stereoscopic vision system | 78 | 1984 | |
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| 4,412,799 Apparatus and method for stereo relief modeling | 12 | 1981 | |
| 4,630,203 Contour radiography: a system for determining 3-dimensional contours of an object from its 2-dimensional images | 64 | 1983 | |