发明名称 |
Method and apparatus for identifying three dimensional coordinates on a tire |
摘要 |
A method and apparatus for identifying 3-D coordinates of a target region on a tire includes: taking a digital image of a tire; finding an edge of a tire bead using pixel brightness values from the tire image; calculating tire bead circle center and radius using a plurality of image pixels on the tire bead edge; and performing a pixel brightness search around the bead circumference using the bead circle's center and radius to identify the target area X, Y coordinates. The Z-coordinate and slope of the target area are determined from multiple point distance calculations across the region.
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申请公布号 |
US7702134(B2) |
申请公布日期 |
2010.04.20 |
申请号 |
US20050292989 |
申请日期 |
2005.12.02 |
申请人 |
THE GOODYEAR TIRE & RUBBER COMPANY |
发明人 |
MCALLISTER, JR. DANIEL |
分类号 |
G06K9/00;G01C3/00;G01C5/00;G09G5/00 |
主分类号 |
G06K9/00 |
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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