想了解跨视角匹配的现状和未来？这篇综述把方法分类、基准测试和基础模型趋势都讲清楚了，适合快速入门。
该综述系统梳理了跨视角特征匹配领域，提出涵盖特征提取、单类型匹配器、多类型匹配器、视觉基础模型方法、训练策略和鲁棒估计的分类体系。文章对代表性方法在统一协议下进行基准测试，比较性能差异。综述指出领域正从任务特定模型转向统一可泛化的对应模型，并讨论了效率、极端条件鲁棒性和跨域泛化等开放挑战。
Cross-View Feature Matching: Survey, Benchmarking, and Foundation-Model Perspectives
Cross-view feature matching aims to establish reliable correspondences across images with large viewpoint variations. Over the past decade, the field has evolved from task-specific models toward increasingly unified and generalizable correspondence models, with recent progress further driven by the emergence of vision foundation models (VFMs). Despite these advances, existing studies remain highly diverse in their problem formulations, model architectures, training paradigms, and evaluation protocols, making it difficult to obtain a unified understanding of the field. In this survey, we present a unified review of cross-view feature matching. We first introduce a structured taxonomy covering feature extraction, single-type feature matcher, multi-type feature matcher, VFMs based methods, training strategy and robust estimation, providing a coherent framework for analysis and comparison. We further examine recent advances, distilling key design principles and highlighting the shift toward unified and generalizable correspondence models. We also provide a unified experimental benchmarking of representative state-of-the-art methods under consistent protocols, enabling fair and comprehensive performance comparisons. In addition, we discuss open challenges and future directions, including efficiency, robustness under extreme conditions, and cross-domain generalization. This survey aims to provide a comprehensive and structured reference for understanding the evolution, current landscape, and future development of cross-view feature matching in the era of vision foundation models.