Image analysis – Applications – Target tracking or detecting
Reexamination Certificate
2004-09-09
2011-12-13
Patel, Jayesh A (Department: 2624)
Image analysis
Applications
Target tracking or detecting
C382S106000, C382S287000, C382S294000, C382S302000, C386S227000, C701S213000
Reexamination Certificate
active
08077913
ABSTRACT:
In order to determine the actual position (A) of a geodetic measuring instrument (1) inside a dead range (T) wherein signals originating from a positioning system are shadowed, two reference structures (5) are detected from at least two known positions and the distances associated with the reference structures (5) are measured. Image information linked to said distance measurements is captured. Said information contains data on the arrangement of the reference structures (5). The actual position (1) can be derived from subsequent capture of the reference structures (5) from a position inside the dead range (T). Image processing methods are used advantageously to identify and measure the reference structures (5).
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Leica Geosystems AG
Maschoff Gilmore & Israelsen
Patel Jayesh A
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