based on comparison of several commonly used methods in temperature field measurement, an improved method is put forword . 3 . combined colorimetric methods brightness method and reference temperature method, the saturation error caused by ccd is cut down significantly 按照软件工程的思想,对基于ccd图像的实时炉温检测系统功能进行详细的需求分析、并在需求分析的基础上设计了应用软件包,结合硬件系统,构建了真实的炉温检测系统。