2025/04/30 by Zhelun Shen, Zhuo Li, Shen, Zhelun +11
Computer Science · #Domain Adaptation and Few-Shot Learning #Advanced Vision and Imaging #Multimodal Machine Learning Applications
paper · pdf · doi:10.48550/arxiv.2504.21302
Recently, learning-based stereo matching methods have achieved great improvement in public benchmarks, where soft argmin and smooth L1 loss play a core contribution to their success. However, in unsupervised domain adaptation scenarios, we observe that these two operations often yield multimodal disparity probability distributions in target domains, resulting in degraded generalization. In this paper, we propose a novel approach, Constrain Multi-modal Distribution (CMD), to address this issue. Specifically, we introduce uncertainty-regularized minimization and anisotropic soft argmin to encourage the network to produce predominantly unimodal disparity distributions in the target domain, thereby improving prediction accuracy. Experimentally, we apply the proposed method to multiple representative stereo-matching networks and conduct domain adaptation from synthetic data to unlabeled real-world scenes. Results consistently demonstrate improved generalization in both top-performing and domain-adaptable stereo-matching models. The code for CMD will be available at: \hrefhttps://github.com/gallenszl/CMDhttps://github.com/gallenszl/CMD.