Optics: measuring and testing – Shape or surface configuration – Triangulation
Reexamination Certificate
2006-07-11
2006-07-11
Toatley, Jr., Gregory J. (Department: 2877)
Optics: measuring and testing
Shape or surface configuration
Triangulation
C356S604000, C356S610000, C356S616000, C356S620000, C382S111000, C396S106000, C396S431000, C396S050000
Reexamination Certificate
active
07075661
ABSTRACT:
Methods and apparatus for introducing a plurality of optical markers to a field of view, capturing a two-dimensional image of said field of view on an image plate comprising a pixel array, determining a set of marker origin offset values and using said offset values to establish a set of orientation values describing the relationship between the field of view and the image plate are disclosed. These orientation values are used to relate the area of image captured by each pixel in the image plate to the real world. By applying projective geometry, vector analysis and trigonometrical surveys an image analysis is conducted to establish a three-dimensional positional data set describing the three-dimensional position of regions of reflectivity in the captured two-dimensional image. From this data set a three-dimensional model of the field of view can be reconstructed.
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International Search Report—PCT/GB02/00738; ISA/EPO, Completed: Jun. 26, 2002.
Petty John Michael
Petty Phillip Stephen
Harness, Dickey & Pierce P.L.L.C.
Industrial Control Systems Limited
Nguyen Sang H.
Toatley , Jr. Gregory J.
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