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传统的查找表法在标定ＣＲＴ 时，假定ＣＲＴ 单枪作用时所显示颜色的色品坐标恒定不变，而实际上却有较大变化，对标定的精度有较大的影响。因此提出用一种三维搜索匹配方法对查找表法进行改进，提高了ＣＲＴ 的标定精度。
Conventional look-up table method in the calibration of the CRT, assuming a CRT single gun role in the color of the chromaticity coordinates remain constant, but in fact there is a big change, the calibration accuracy has a greater impact. Therefore, a three-dimensional search matching method is proposed to improve the lookup table method and improve the calibration accuracy of CRT.