A Construction of 2-D Circle Convolution Data

In considering the important role of circle convolution in 2-D signal processing,the effective method for constructing 2-D circle convolution data is studied.Based on 2-D convolution fundamental theory,the relationship between 2-D circle convolution data,the 2-D linear convolution data and un-complete linear convolution data is analyzed,and in the light of this special relationship,a method for constructing 2-D circle convolution data by the un-complete linear convolution data is proposed.Through splitting the un-complete linear convolution data into some sub-blocks,the 2-D circle convolution data is constructed by properly combining those blocks.Simulation results show that the proposed method is effective and feasible.