发明名称 |
Generalized biased centroid edge locator |
摘要 |
An edge locator processor having memory and which employs a generalized biased centroid edge locator process to determining the leading edge of an object in a scene moving in a generally horizontal direction across a video screen. The generalized biased centroid edge locator process includes defining a gate and determining the centroid position for that portion of the object within the gate. This occurs for a succession of gates, until predetermined conditions are met. By constructing this series of successively expanding gates, a left gate edge position and centroid position may be determined for each gate to define a series of left edge and centroid positions. These values may be linearly correlated to provide a slope and an intercept, from which the edge may be determined.
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申请公布号 |
US5872857(A) |
申请公布日期 |
1999.02.16 |
申请号 |
US19960651470 |
申请日期 |
1996.05.22 |
申请人 |
RAYTHEON COMPANY |
发明人 |
CHODOS, STEVEN L.;ROSZKOWSKI, STACY |
分类号 |
G01S3/786;G06T5/00;G06T7/00;G06T7/60;(IPC1-7):G06T7/60 |
主分类号 |
G01S3/786 |
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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