Optics: measuring and testing – Shape or surface configuration – By projection of coded pattern
Reexamination Certificate
2004-03-08
2009-12-29
Toatley, Jr., Gregory J (Department: 2877)
Optics: measuring and testing
Shape or surface configuration
By projection of coded pattern
C345S644000
Reexamination Certificate
active
07639372
ABSTRACT:
A scanning system includes one or more stereo camera sets (10) for detecting qualitative and quantitative anomalies of an object (40). Each stereo camera set (10) includes two cameras (12, 14) and a projector (16). Each camera (12, 14) is calibrated to correct any distortion due to misalignment of the CCD matrix array (18) and deficiencies of the optical system. The projector (16) projects an absolute encoded pattern (32, 34, 36) onto the object (40) to be measured and is capable of varying the intensity of the emitted electromagnetic energy in the infrared, visible and ultraviolet spectrums. A plurality of camera sets (10) can be combined in a scanning system matrix (42, 44) capable of detecting anomalies of the object (40) in a three-dimensional room (26). The three-dimensional room (26) can be of any desirable size, depending on the number of stereo camera sets (10). The data from the cameras (12, 14) is pre-processed by gate arrays (62) before being transmitted via digital signal processors (66) to a computer interface (64) for display of the measurement. As a result, the amount of data transferred is streamlined, thereby reducing operating time and enabling the scanning system to very accurately detect anomalies of the object (40) in a very short period of time.
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Gerlach Dieter
Kellner Helmut
Rashid Peter J.
Slomski Rebecca C
Toatley Jr. Gregory J
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