Scanning system with stereo camera set
First Claim
1. A scanning system comprising a stereo camera set (10) including a pair of calibrated cameras (12, 14), a projector (16) having a medium with absolute encoded pattern (32) thereon, and a light source (38) for projecting the absolute encoded pattern (32) on a surface of an object (40), wherein said scanning system detects an anomaly on a surface of the object (40) when the object (40) is placed within a three-dimensional room (26).
2 Assignments
0 Petitions
Accused Products
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.
33 Citations
20 Claims
- 1. A scanning system comprising a stereo camera set (10) including a pair of calibrated cameras (12, 14), a projector (16) having a medium with absolute encoded pattern (32) thereon, and a light source (38) for projecting the absolute encoded pattern (32) on a surface of an object (40), wherein said scanning system detects an anomaly on a surface of the object (40) when the object (40) is placed within a three-dimensional room (26).
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3. (canceled)
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9. A method of processing data in a scanning system, comprising the steps of:
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calibrating each camera (12, 14) of a stereo camera set (10);
processing an array of data from scanning a surface of an object (40) with a the stereo camera set (10) by using a hierarchical arrangement (60) in which a gate array (62) connected to a camera (12, 14) of the stereo camera set (10) determines which data from the array of data is necessary for recognition of the object (40), and which data from the array of data is necessary for computer interface operation;
transmitting only data from the array of data which is necessary for computer interface operation via a digital signal processor (66) to a computer (64); and
displaying the data which is necessary for computer interface operation on the computer (64). - View Dependent Claims (10, 11, 12, 13, 14)
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15. (canceled)
Specification