Concrete surface crack detection method and device

The invention relates to the field of concrete structure health detection, in particular to a concrete surface crack detection method and device.The method comprises the steps that first information is obtained, and the first information comprises concrete surface video information; identifying the first information by using a computer vision algorithm to obtain second information, the second information comprising a video frame image with a crack in the first information; the second information is preprocessed, and preprocessed second information is obtained; the width of the crack in the preprocessed second information is calculated according to the pixel value in the pixel matrix in the preprocessed second information, crack width information is obtained, rapid recognition of the concrete crack is achieved, and higher robustness and accuracy are achieved. 本发明涉及混凝土结构健康检测领域，具体而言，涉及一种混凝土表面裂缝检测方法及装置，所述方法包括获取第一信息，所述第一信息包括混凝土表面视频信息；利用计算机视觉算法对所述第一信息进行识别，得到第二信息，所述第二信息包括第一信息中存在裂缝的视频帧图像；对所述第二信息进行预处理，得到预处理后的第二信息；根据所述