Image analysis – Applications – Vehicle or traffic control
Reexamination Certificate
2005-05-24
2005-05-24
Boudreau, Leo (Department: 2621)
Image analysis
Applications
Vehicle or traffic control
Reexamination Certificate
active
06898298
ABSTRACT:
A monitoring system using an imaging device like a TV camera, etc. enhances a monitoring accuracy without involving manual operations and increasing costs for installing the monitoring system. Two lengths of linear components parallel to each other are extracted from data of an image taken by the imaging device. A rotational angle and an elevation angle of the imaging device are calculated from a positional relationship between those two lengths of linear components and a view point of the imaging device. Obtained is a ratio of a line-to-line distance between the two lengths of linear components when transforming coordinates of the two lengths of linear components on an image plane into coordinates on an imaginary plane to a line-to-line distance between the two lengths of linear components in a real space. A height of position from the plane for installing the imaging device is obtained from this ratio.
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Boudreau Leo
Lu Tom
Staas & Halsey , LLP
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