Generation Drawing/Grinding Trajectoy Based on Hierarchical CVAE
This work addresses trajectory generation for drawing/grinding processes, which is an incremental improvement in robotics or manufacturing automation.
The paper tackles the problem of generating drawing/grinding trajectories by modeling local and global features using hierarchical Variational Autoencoders (VAEs), achieving high reproducibility and generalization with a small amount of training data.
In this study, we propose a method to model the local and global features of the drawing/grinding trajectory with hierarchical Variational Autoencoders (VAEs). By combining two separately trained VAE models in a hierarchical structure, it is possible to generate trajectories with high reproducibility for both local and global features. The hierarchical generation network enables the generation of higher-order trajectories with a relatively small amount of training data. The simulation and experimental results demonstrate the generalization performance of the proposed method. In addition, we confirmed that it is possible to generate new trajectories, which have never been learned in the past, by changing the combination of the learned models.