CFDNet: A Generalizable Foggy Stereo Matching Network with Contrastive Feature Distillation

• URL: http://arxiv.org/abs/2402.18181v2
• Date: Thu, 29 Feb 2024 07:42:53 GMT
• Title: CFDNet: A Generalizable Foggy Stereo Matching Network with Contrastive Feature Distillation
• Authors: Zihua Liu, Yizhou Li and Masatoshi Okutomi
• Abstract summary: We introduce a framework based on contrastive feature distillation (CFD) This strategy combines feature distillation from merged clean-fog features with contrastive learning, ensuring balanced dependence on fog depth hints and clean matching features.
• Score: 11.655465312241699
• License: http://creativecommons.org/publicdomain/zero/1.0/
• Abstract: Stereo matching under foggy scenes remains a challenging task since the scattering effect degrades the visibility and results in less distinctive features for dense correspondence matching. While some previous learning-based methods integrated a physical scattering function for simultaneous stereo-matching and dehazing, simply removing fog might not aid depth estimation because the fog itself can provide crucial depth cues. In this work, we introduce a framework based on contrastive feature distillation (CFD). This strategy combines feature distillation from merged clean-fog features with contrastive learning, ensuring balanced dependence on fog depth hints and clean matching features. This framework helps to enhance model generalization across both clean and foggy environments. Comprehensive experiments on synthetic and real-world datasets affirm the superior strength and adaptability of our method.

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