The Crack Diffusion Model: An Innovative Diffusion-Based Method for Pavement Crack Detection

Author:

Zhang Haoyuan1ORCID,Chen Ning1ORCID,Li Mei1ORCID,Mao Shanjun1

Affiliation:

1. Institude of Remote Sensing and Geographic Information System, Peking University, Beijing 100871, China

Abstract

Pavement crack detection is of significant importance in ensuring road safety and smooth traffic flow. However, pavement cracks come in various shapes and forms which exhibit spatial continuity, and algorithms need to adapt to different types of cracks while preserving their continuity. To address these challenges, an innovative crack detection framework, CrackDiff, based on the generative diffusion model, is proposed. It leverages the learning capabilities of the generative diffusion model for the data distribution and latent spatial relationships of cracks across different sample timesteps and generates more accurate and continuous crack segmentation results. CrackDiff uses crack images as guidance for the diffusion model and employs a multi-task UNet architecture to predict mask and noise simultaneously at each sampling step, enhancing the robustness of generations. Compared to other models, CrackDiff generates more accurate and stable results. Through experiments on the Crack500 and DeepCrack pavement datasets, CrackDiff achieves the best performance (F1 = 0.818 and mIoU = 0.841 on Crack500, and F1 = 0.841 and mIoU = 0.862 on DeepCrack).

Funder

National Key R&D Program of China

Publisher

MDPI AG

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