Before revision:  However, as the robot renovates a house, the point cloud information changes dynamically. For the purpose of making the robot dynamically adapt to the changes of the environment, this paper proposes a semantic segmentation method for point cloud based on meta-learning.
After revision:  However, the dynamic changes of 3D point cloud data may bring difficulties for construction robots to understand environmental information, such as when construction robots renovate houses. The paper proposes a semantic segmentation method for point cloud based on meta-learning.