Focusing on the research and application of photogrammetry system,by pasting reflective points on the casting,photogrammetry in different positions and directions,obtaining more than three digital images of the same object sticking points,after computer image matching processing,and related mathematical calculations,the accurate three-dimensional coordinates of the points to be measured are obtained,and the theoretical three-dimensional model is compared and intelligently judged,and the de-tection results are obtained.Compared with traditional dimensional measurement,photogrammetry can re-flect the size results of castings more comprehensively and accurately,which greatly improves the effi-ciency and accuracy of dimensional inspection.
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