Photic Dot Image Data Process Method Use Density Filtering

摘要

Noise removal from data is an important part of continuous data pre-treatment, and its result has a great effect on the final result. To test the photic dot circuit of the optronic Equipment with auto test system based on PXI bus, A density based filtering method is proposed to remove noise. With this method the noise in data is determined by grid and density in screen coordinate. This paper indicate the hardware framework and software realization of this method. Experimental results show that the density filtering method is effective.