| 摘要 |
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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