Three-dimensional shape measurement system and method for large-size object
A technology of three-dimensional shape and measurement system, applied in the direction of measuring devices, instruments, optical devices, etc., can solve the problems of difficulty in ensuring measurement accuracy, inability to clearly capture marks, inconvenient implementation, etc.
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[0067] The measurement method of the above-mentioned three-dimensional shape measurement system for large objects is applied through an embodiment below, which specifically includes the following steps:
[0068] (1) Place a calibration plate 12 between the first stereo vision system 7 and the second stereo vision system 8 of the three-dimensional scanner 6, such as figure 2 shown; then the two sets of stereo vision systems are calibrated by the server 1;
[0069] (2) Place the calibration plate 12 on one side along the sliding guide rail 2, and calibrate the laser rangefinder 5 through the server 1, as Figure 4 shown;
[0070] (3) The measurement object in the present embodiment is a large curved steel plate 11, such as Figure 5 shown. The projector 10 projects structured light to the curved steel plate 11; the four industrial cameras 9 in the first stereo vision system 7 and the second stereo vision system 8 acquire partial images of the curved steel plate 11, and trans...
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