CleanPose: Category-Level Object Pose Estimation via Causal Learning and Knowledge Distillation

• URL: http://arxiv.org/abs/2502.01312v1
• Date: Mon, 03 Feb 2025 12:41:36 GMT
• Title: CleanPose: Category-Level Object Pose Estimation via Causal Learning and Knowledge Distillation
• Authors: Xiao Lin, Yun Peng, Liuyi Wang, Xianyou Zhong, Minghao Zhu, Jingwei Yang, Chengju Liu, Qijun Chen,
• Abstract summary: Category-level object pose estimation aims to recover the rotation, translation and size of unseen instances within predefined categories. Deep neural network-based methods have demonstrated remarkable performance but suffer from spurious correlations raised by "unclean" confounders. We propose CleanPose, a novel approach integrating causal learning and knowledge distillation to enhance category-level pose estimation.
• Score: 18.453617417061245
• License:
• Abstract: Category-level object pose estimation aims to recover the rotation, translation and size of unseen instances within predefined categories. In this task, deep neural network-based methods have demonstrated remarkable performance. However, previous studies show they suffer from spurious correlations raised by "unclean" confounders in models, hindering their performance on novel instances with significant variations. To address this issue, we propose CleanPose, a novel approach integrating causal learning and knowledge distillation to enhance category-level pose estimation. To mitigate the negative effect of unobserved confounders, we develop a causal inference module based on front-door adjustment, which promotes unbiased estimation by reducing potential spurious correlations. Additionally, to further improve generalization ability, we devise a residual-based knowledge distillation method that has proven effective in providing comprehensive category information guidance. Extensive experiments across multiple benchmarks (REAL275, CAMERA25 and HouseCat6D) hightlight the superiority of proposed CleanPose over state-of-the-art methods. Code will be released.

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