可用于数码相机的新型滤色器实验研究

Experimental Study of a New Color Filter Used for Digital Camera

目前的数码相机获取彩色大多是由棋盘格状 Bayer型滤色器与 CCD构成彩色成像器件获得。本文则提出了一种新型格式的滤色器 ,其不仅具有三原色空间周期采样的特点 ,同时又具有三色光栅编码的特点 ,即编码数字图像的频谱面上红、绿和蓝信号相互分离。本文的分析表明这种滤色器和 Bayer型相比具有解码步骤较为简单的优点。本文特殊设计的模拟实验验证了其用于数码摄影的实际效果。

Recently most kinds of digital cameras acquire color image by imaging instrument composed by Bayer color filter and CC D sensor.A new format color filter is proposed in this paper.It has not only the sampling character but also the tricolor gratings encoding character.On the fre quency spectrums plane of the encoded image,the red,green and blue information p a rts are separated.The analyst shows that the new color filter can make the decod ing processing simple comparing to Bayer color filter.The simulation experiment in this paper proves its feasibility used for digital camera.