PREPRINT
05C0AF50-2A77-4304-B0D6-A90F91375384

Correction Algorithm of Sampling Effect and Its Application

Yunqi Sun, Jianfeng Zhou
arXiv:2207.00004

Submitted on 25 June 2022

Abstract

The sampling effect of the imaging acquisition device is long considered to be a modulation process of the input signal, introducing additional error into the signal acquisition process. This paper proposes a correction algorithm for the modulation process that solves the sampling effect with high accuracy. We examine the algorithm with perfect continuous Gaussian images and selected digitized images, which indicate an accuracy increase of 106 for Gaussian images, 102 at 15 times of Shannon interpolation for digitized images, and 105 at 101 times of Shannon interpolation for digitized images. The accuracy limit of the Gaussian image comes from the truncation error, while the accuracy limit of the digitized images comes from their finite resolution, which can be improved by increasing the time of Shannon interpolation.

Preprint

Comment: 7 pages, 7 figures

Subjects: Astrophysics - Instrumentation and Methods for Astrophysics; Computer Science - Computer Vision and Pattern Recognition

URL: https://arxiv.org/abs/2207.00004