G - Physics – 01 – B
Patent
G - Physics
01
B
354/25, 33/53, 3
G01B 11/24 (2006.01) G01B 11/245 (2006.01)
Patent
CA 1252211
- 1 - ABSTRACT A method and apparatus for providing information as to the cross-sectional shape or profile of a body is disclosed in which a known datum in the form of a bar 50 having a cross-shaped cross-section is detected by a camera 14. A body is then detected by the camera 14 to provide preliminary information as to the shape or profile of the body and the preliminary information is transformed in accordance with a variation of the detected datum from the known datum to provide a better indication of the true cross-sectional shape or profile of the body. The known datum 50 enables at least three non-colinear reference locations to be defined and calibration parameters are determined from the reference locations so that exact reference locations can be determined.
510747
Broken Hill Proprietary Company Limited (the)
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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