The main reason causing serious distortion of CCD images is using filter.
CCD图像产生严重畸变的原因正是使用了滤光片。
2
The lowpass filter in the CCD readout circuit inevitably results in information distortion of pixel crosstalk while improving the system signal-to-noise.
CCD读出电路中低通滤波器在改善系统输出信噪比的同时，不可避免地会产生像素串扰，造成信息畸变。
3
The Paper describes the key technics of CCD camera's imaging circuit, including power technic, ground technic and driving signal's improving. It discusses about filter technic.