为了提高连铸生产效率和铸坯质量，设计了一种基于红外热像技术的连铸坯表面质量实时检测系统，通过红外热像仪在线实时采集生产过程连铸坯表面热图像；并在VB 基础上建立连铸坯缺陷特征图像评估系统，对采集的连铸坯的热图像进行分析运算和分类处理。采用Halcon 软件建立人机界面，并结合实际生产数据，结果表明该系统降低铸坯的误报率，提高了铸坯质量和生产效率。

In order to improve the quality of continuous casting billet, defect on the surface of continuous casting billet is in real-time detection and evaluation. This paper designed a kind of casting billet surface quality real-time detection system based on the technology of infrared thermal imaging, capturing online real time production process of continuous casting billet surface thermal images through the infrared thermal imager. And a comprehensive evaluation system based on VB is built, which is for evaluating characteristics of continuous casting slab defect image, performing analysis and classification operations on the images of continuous casting billet acquisited during hot processing. Halcon software is adopted to establish the man-machine interface at the same time, combining with the actual production data.