Fig. 1. Flow chart of the method in this article

Fig. 2. Schematic diagram of the optimal transport

Fig. 3. Schematic diagram of the method presented in this paper

Fig. 4. Significance visualization plot， the significance points are marked in red

Fig. 5. Knn and ball query visualization compare Fig

Fig. 6. Distribution map of the sampling number of each class in the ShapeNet data set

Fig. 7. Airplane visualization

Fig. 8. Table visualization

Fig. 9. Cap visualization

Fig. 10. Earphone visualization

Fig. 11. Knife visualization

Fig. 12. Computer visualization

Fig. 13. Pistol visualization

Fig. 14. Airplane visualization

Fig. 15. Proportion of enhanced samples