Examination of deblur processing according to optical parameters in aerial image

Abstract

We propose a pre-processing method of source image to reduce blur of aerial image that is formed with aerial imaging by retro-reflection (AIRR). The image blur in the AIRR optical system depends on the optical elements and the incident angle. In this paper, the point spread function (PSF) was measured by changing the optical arrangements and the retro-reflectors. A deconvolution processing based on the obtained PSF was applied on the aerial image. The accuracy of the deconvolution processing was quantitatively evaluated by use of three types of image quality indices. These numerical experimental results show the possibility of removing the blur of the aerial image by applying the deconvolution process based on the PSF of AIRR optical system.