Patchwork Pals Series 2: 4. Patchwork Rabbit Patchwork Rabbit has a problem: he's invited everyone to his big circus, but they don't think it's big at all! Can Patchwork Rabbit save the show?

Patchwork Chick has a problem: nobody wants to play with him because he is so small! But aren't there even smaller Patchwork Pals around who also want to play?

Abstract: Ground segmentation is crucial for terrestrial mobile platforms to perform navigation or neighboring object recognition. Unfortunately, the ground is not flat, as it features steep slopes; ...

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