Binocular camera based express packaging box dimension measurement

The inefficiency of the dimension measurement on express packaging box lags behind the fast development of logistics industry in China. Therefore, focusing on improving the measurement efficiency of express packaging box, this paper proposes a new study on combining dimension binocular camera together with artificial intelligence algorithms. Specifically, a method combining HSV color space with OTSU is proposed to extract the box contour, straight line fitting is used to extract box corner points, and epipolar constraint is used for stereo matching of images, and finally the box dimension is obtained. The results show that in the experimental condition, this method can effectively control the relative error rate of the measurement of express box dimension to about ± 5 mm, which is close to the theoretical precision.