“…In the navigation based on multiple terrains, a robot needs to automatically segment different terrains, including cement ground, grass, and puddles, to know its current surroundings quickly, plan appropriate paths, or make reasonable decisions. [3][4][5] Yet, many challenges exist in terrain segmentation, as the outdoor environment is usually unstructured, uncertain, and sometimes interfered with by light, weather, pedestrians, vehicles, and other disturbances. 6,7 Therefore, it is crucial to improve the accuracy and real-time performance of terrain segmentation.…”