Fractional sampling polyphase filter based conversion of image resolution
Ning Zhang, Zhipeng Shen · 2008
In order to meet the performance of realtime system, multirate digital signal processing is discussed in frequenc spectrum, then a polyphase structure based efficient implementation scheme of the fractional sampling rate converter is presented. Applying the converter to image scaling, the simualtion results show that the margin of the output image is legible, demonstrating the validity of the proposed fractional polyphase converter.