Survey on Image Reconstruction TechniquesUsing Multi-Focus Images

Abstract

Image reconstruction using multi-focus images is very novel approach used in many applications. The different methods of image reconstruction by using multiple differently focused images on FPGA are described in detail in this paper. The effective method for FPGA implementation can be determined from this survey. From the comparison of survey papers the method of spatial frequency analysis based on three dimensional FFT is expensive. So the efficient method of image reconstruction can be designed with the help of dimension reduction and two dimensional FFT which is better in cost and quality. The Block-RAMs on FPGA limits the image size. So the problem of sizing of images is overcome by FPGA-based image reconstruction system by using an onboard DDR SDRAM. So the image reconstruction system based on Xilinx FPGA can be efficiently designed.