Product qualification rate detection system based on combination of photometric stereo technology and structured light technology and detection method thereof

The invention discloses a product qualification rate detection system based on combination of the photometric stereo technology and the structured light technology and a detection method thereof, andbelongs to the field of industrial detection. The method is characterized in that through the photometric three-dimensional system and the structured light system, a corrected object surface normal vector and three-dimensional data are calculated, the object surface normal vector is corrected, and the quality of products is judged; the photometric three-dimensional technology comprises a light source control switch, an illumination light source, a camera, an image acquisition card and a computer; the structured light system comprises an area array CCD camera, an image acquisition card, a telephoto lens, an LED projector and a computer, and the LED projector is connected with the computer through network signals. The method is advantaged in that a mode of combining the photometric stereo technology and the structur