Software for demanding 3D surface inspection
In many production environments it is important that each product is checked for completeness and flaws. In 2D it is a common approach to compare a golden template image with an image of the test object. In theory this is a simple process of subtracting the test image from the original; in practical applications this is sometimes impossible because the test image contains alignment stretch and rotation errors.
In 3D the principle is the same, but the alignment of both images is more complex with additional degrees of movement and rotation possible. CVB Match 3D offers a new practical approach, providing highest accuracy and a processing speed fast enough to keep track with modern production lines.
The 3D image of a perfect sample (golden template) is compared to the 3D images of parts under test. Part deviations between the template and test part can be identified in real time, allowing pass/fail decisions to be made. The algorithm works internally on real 3D point clouds and automatically adjusts position errors or tipping and tilts in all 3 axes (6 variants). As the alignment is done in software, there is no need for accurate part positioning and handling of the test sample. The mechanical effort is reduced dramatically and high inspection throughput is guaranteed.
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