Matching-space Stereo Networks for Cross-domain Generalization

3DV 2020

Matching-space Stereo Networks for Cross-domain Generalization

Jan 18, 2021
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Abstract: End-to-end deep networks represent the state of the art for stereo matching. While excelling on images framing environments similar to the training set, major drops in accuracy occur in unseen domains (e.g., when moving from synthetic to real scenes). In this paper we introduce a novel family of architectures, namely Matching-Space Networks (MS-Nets), with improved generalization properties. By replacing learning-based feature extraction from image RGB values with matching functions and confidence measures from conventional wisdom, we move the learning process from the color space to the Matching Space, avoiding over-specialization to domain specific features. Extensive experimental results on four real datasets highlight that our proposal leads to superior generalization to unseen environments over conventional deep architectures, keeping accuracy on the source domain almost unaltered. Authors: Changjiang Cai, Matteo Poggi, Stefano Mattoccia, Philippos Mordoha (Stevens Institute of Technology, University of Bologna)

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