近年以来，逐点校正技术在显示行业内得到迅速发展，逐渐走向普及，成为高端显示屏生产环节或现场应用中提高用户视觉体验的一种快捷有效手段，对LED显示屏的亮度、色度一致性提高和色域空间转换及提高色彩保真度有重要意义。本文从校正技术起因入手，分析了校正技术的组成，重点介绍了美国Radiant校正设备经过自主的集成开发形成一套自动化和实用性较强的校正系统以及该系统在项目上的成功应用。

Luminance and color correction technology was developed rapaidly in recent years. It is getting to be an effective way to improve visual in factory and in field. It is important to uniform of luminance and color. The article contains:the source of correction, the technology for correction and Radiant's solution for measuring and correcting the brightness and color of LED video screen.