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This review aims to summarize UAV-based crack detection techniques in civil infrastructure and their application challenges.

June 4, 2026Remote SensingOpen Access

A Review of UAV-Based Crack Detection in Civil Infrastructure: A Multi-Level Visual Analysis Framework, Scene Adaptability, and Challenges

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Review highlights UAV crack detection methodologies and challenges, indicating future directions for infrastructure inspection.

This review aims to summarize UAV-based crack detection techniques in civil infrastructure and their application challenges.
Comprehensive review of UAV platforms, datasets, and evaluation metrics.
Establishment of a multi-level visual analysis framework for UAV inspection categorized into five levels.
Systematic exploration of method applicability across various structural scenarios such as bridges and dams.
Summary of existing methodologies highlighting gaps in systematic analysis for multi-scenario applications.
Identification of key challenges faced in UAV-based inspection methods, emphasizing the need for integrated solutions.
Insightful discussion on future research directions to improve UAV technology for crack detection.

Bai et al. (2026) studied this question.

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