High Accurate Estimation of Point Spread Function Based on Improved Reconstruction of Slant Edge

  • FAN Chong ,
  • LI Guanda ,
  • WU Chaoyun ,
  • LI Cheng ,
  • ZHONG Lei
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  • School of Geosciences and Info-physics, Central South University, Changsha 410083, ChinaAbstract

Received date: 2014-08-31

  Revised date: 2015-05-04

  Online published: 2015-11-25

Supported by

The National Basic Research Program of China(973 Program)(No. 2012CB719904) Postgraduate Independent Exploration and Innovation Program of Central South University(No. 2014zzts256)

Abstract

A high accurate estimation algorithm for point spread function which is free from edge slant angle is proposed. In this algorithm, high accuracy estimation of point spread function is gained by improved edge line fitting, sample denosing and anti-aliasing resampling. Compared with the existing slanted edge methods, the new method yields a significant improvement in accuracy and stability.

Cite this article

FAN Chong , LI Guanda , WU Chaoyun , LI Cheng , ZHONG Lei . High Accurate Estimation of Point Spread Function Based on Improved Reconstruction of Slant Edge[J]. Acta Geodaetica et Cartographica Sinica, 2015 , 44(11) : 1219 -1226 . DOI: 10.11947/j.AGCS.2015.20140400

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