arXiv:2512.04970cs.CV2025-12

提出稳定对比学习方法,让像素同时保留语义与几何信息

Stable Single-Pixel Contrastive Learning for Semantic and Geometric Tasks

  • 用过完备描述符表示像素,实现视角不变且语义明确
  • 无需动量教师-学生训练即可实现精准跨图像点对应
  • 在2D/3D合成环境验证了表示质量与稳定性

我们提出一类用于学习像素级表征的稳定对比损失,可联合捕捉语义与几何信息。该方法将图像中每个像素映射为一个过完备描述符,兼具视角不变性和语义意义。无需动量教师-学生训练,即可实现跨图像的精确点对应。在合成2D和3D环境中进行的两项实验验证了该损失及其生成的过完备表征的特性。

原文摘要 · Abstract (English)

We pilot a family of stable contrastive losses for learning pixel-level representations that jointly capture semantic and geometric information. Our approach maps each pixel of an image to an overcomplete descriptor that is both view-invariant and semantically meaningful. It enables precise point-correspondence across images without requiring momentum-based teacher-student training. Two experiments in synthetic 2D and 3D environments demonstrate the properties of our loss and the resulting overcomplete representations.

对比学习像素表征几何信息

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