1 前言 目前,我国冶金产品的在线自动检测技术比较落后,地方中小冶金企业更是如此,因此,冶金产品质量检验的许多环节,如钢坯、钢材的外形、表面质量和包装标志等,仍采用感官检验法,即依靠人的视觉进行产品质量检验。这种方法受检验者思想觉悟、文化修养、专业知识、健康状况、心理状态、感官的敏锐程度等因素的影响,检验结果明显带有主 1 Preface At present, the online automatic detection technology of metallurgical products in our country lags behind, especially for the local small and medium-sized metallurgical enterprises. Therefore, many aspects of the metallurgical product quality inspection, such as the shape, surface quality and packaging mark of billet and steel, still use the sensory Inspection method, that is, rely on human vision for product quality inspection. This method by the examinee’s ideological consciousness, cultural self-cultivation, professional knowledge, health status, psychological status, sensory sensitivity and other factors, the test results obviously with the Lord