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Spatial Resolution Evaluation Method Based on Edge Characteristics by Jing Zhang; Xiaohui Li; Jiajia Zhu; Ziyang Li; Xinfang Yuan is a book available to read on EtoBox.

What is Spatial Resolution Evaluation Method Based on Edge Characteristics about?

The most common way to evaluate spatial resolution is visual method, but it is time-consuming, laborious, easily affected by evaluators and output environment, and resolution targets must be arranged. In practical applications, it is difficult to obtain remote sensing images containing resolution targets. Therefore, how to use images without resolution targets but with typical features (edge, linear) to develop a practical objective detection method of spatial resolution has practical significance and application requirements. To solve this problem, the basic concepts and calculation methods of several parameters: FWHM, EQW, 2σ width, ESW, R 0.02 , R 0.05 , etc., closely related to the spatial resolution and often used to reflect the payload's ability to reproduce details, are analyzed by using edge target. Through simulation experiments and real data verification, the relationship between these parameters and spatial resolution is analyzed and compared. It is found that these parameters are linearly related to standard deviation of the MTF curve (σ MTF) , and their change laws are basically consistent with the visual resolution. However, the result is far from the actual visual re

Author

Jing Zhang; Xiaohui Li; Jiajia Zhu; Ziyang Li; Xinfang Yuan

Publisher

Springer Nature Singapore Pte Ltd Fka Springer Science + Business Media Singapore Pte Ltd

Published

2023

Language

EN

ISBN

9789819940974

Subjects

Science, Engineering, Physics