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Journal of Applied Mathematics and Computation

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Article Open Access 10.26855/jamc.2018.09.001

Study Method for Testing Image Quality of Optical Remote Sensing Satellite of Vietnam

Nghiem Van Tuan1, Nguyen Minh Ngoc2,*, Tran Van Anh3, Do Thi Phuong Thao4

1National Remote Sensing Department, Ministry of Natural Resources and Environment, VietNam

2Space Technology Institute, VietNam Academy of Science and Technology, VietNam

3Faculty of Geomatics and Land administration, Hanoi University of Mining and Geology, VietNam

4Faculty of Geomatics and Land administration, Hanoi University of Mining and Geology, VietNam

*Corresponding author: Nguyen Minh Ngoc

Published: September 27,2018

Abstract

VNREDSat-1 satellite had been launch on 7th May 2013 with 5 years life time designed and it opens up new opportunities for natural resources and environment monitoring in Vietnam. Precise information on the Earth surface which is extracted from remote sensing data including VNREDSat-1 depends on parameters such as spatial resolution, radiometric resolution, temporal resolution, and spectral resolution. Image quality is evaluated by spatial and radiometric resolution. MTF (Modulation Transfer Function) shows quality of spatial resolution and sharpness. Radiometric resolution is delineated through noise value characterized by signal to noise ratio (SNR). VNREDSat-1 is the first multi-spectral Vietnamese satellite that suitable image quality assessment methods should be built and possible applied for similar future satellites. MTF could be estimated by algorithms as general mathematical framework based on Wiener filter (1949), target based absolute MTF; or direct and indirect parametric models of MTF. SNR estimation could be performed by several methods which are single view for homogeneous and quasi- homogeneous area or synthetic landscape such as the desert, snowy expans of Greenland or Antarctic, etc. Outputs of this work are methodology and algorithm for VNREDSat-1 image quality assessment and similar future satellites that is suitable with characteristics of Viet Nam test site.

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How to cite this paper

Study Method for Testing Image Quality of Optical Remote Sensing Satellite of Vietnam

How to cite this paper: Nghiem Van Tuan, Nguyen Minh Ngoc, Tran Van Anh, Do Thi Phuong Thao. (2018) Study Method for Testing Image Quality of Optical Remote Sensing Satellite of VietnamJournal of Applied Mathematics and Computation, 2(9), 357-365.

DOI: http://dx.doi.org/10.26855/jamc.2018.09.001