3D inspection is an advanced quality control method that utilizes three-dimensional imaging technology to evaluate the geometric characteristics of an object. By employing laser scanners, structured light, or other 3D sensors, this technique creates detailed digital models of objects to measure dimensions, surface contours, and spatial relationships with high accuracy. It enables comprehensive analysis of complex shapes and ensures precise quality assurance by comparing the 3D models against design specifications. 3D inspection is crucial in industries like aerospace, automotive, and manufacturing for detecting defects, verifying tolerances, and enhancing product performance.