本文在三色光栅编码摄影技术的基础上提出了新型三色光栅式滤色器 ,并进一步提出了 YIQ色度型滤色器 ,经原理分析和计算机仿真研究发现 ,YIQ型滤色器和现行的 Bayer型滤色器相比 ,在保持获取绿色信号上限频率不变的情况下 ,提高了获取红蓝色信号上限频率 ,具有提高现行数码相机分辨率的潜力 In this paper, a new type of three-color grating color filter is proposed based on the three-color grating coding photography technology, and the YIQ color filter is further proposed. The principle analysis and computer simulation show that the YIQ type color filter and the current Compared with Bayer-type color filter, the upper limit frequency of red and blue signals is improved while keeping the upper limit frequency of green signal unchanged, which has the potential of improving the resolution of current digital cameras