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
Email: nguyenminhngoc.nrsc@gmail.com
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.
How to cite this paper
Study Method for Testing Image Quality of Optical Remote Sensing Satellite of Vietnam
How to cite this paper: Nghiem, V.T., Nguyen, M.N., Tran, V.A., Do, T.P.T.. (2018) Study Method for Testing Image Quality of Optical Remote Sensing Satellite of Vietnam. Journal of Applied Mathematics and Computation, 2(9), 357-365.
DOI: 10.26855/jamc.2018.09.001
