PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING
December 2020
719
PHOTOGRAMME TR I C ENG I NE ER I NG & REMOT E SENS I NG
The official journal for imaging and geospatial information science and technology
December 2020 Volume 86 Number 12
720
Haoyuan Cheng, Jinkui Chu, Ran Zhang, Lianbiao Tian,
and
Xinyuan Gui
It is still unclear how water turbidity affects the underwater polarization pattern. Current
simulations only consider single Rayleigh scattering of water molecules and ignore multiple Mie
scattering of suspended particles. In this article, a method based on a combination of Monte
Carlo numerical simulation and Mie scattering theory is used to establish a model of the turbid
underwater polarization distribution.
Bin Yang, Lei Yan,
and
Siyuan Liu
The Bidirectional polarization distribution function (BPDF) of land surfaces is important for studies
of land surfaces and aerosol. With the availability of a huge number of polarization measurements,
several semi-empirical BPDF models have been proposed. However, these models do not pay much
attention to canopy structure, which is fundamental for generation of polarization. In this article,
we propose a new BPDF model using canopy structure information, which is parameterized by
visible-sunlit areas.
Yongqiang Sun, Chunmin Zhang, Pengju Zhang, Tingkui Mu, Tingyu Yan,
and
Yangqiang Wang
In this article, the frequency shift system calibration of the wind imaging interferometer is analyzed.
By establishing the frequency shift system vibration and reflectivity models, the single factor and
comprehensive factors models are used to invert the wind speed and temperature, respectively.
The parameters of the frequency shift system that meet the design accuracy requirement of the
instrument are determined. The conclusion of this paper provides theoretical instructions for the
calibration process of wind imaging interferometer.
Ziyang Zhang, Song Ye, Shu Li, Yuting Zhang, Wentao Zhang, Jiejun Wang, Xinqiang Wang,
and
Fangyuan Wang
Spatially modulated full-polarization imaging systems can obtain full Stokes parameter information
by single imaging, with strong characteristics of real-time execution and stability. Since all the
polarization information is modulated into an interferogram, demodulation becomes an essential
step. As the resolution of the obtained image continuously increases, the data to be calculated also
increase. Therefore, a higher speed for the demodulation process is requisite. This article proposes
a local filtering method and bypasses the frequency centralization method in the frequency domain
to improve the speed of demodulation.
Wei Chen, Ge Song, Haozhong Wang, Haimeng Zhao, Jianfang Zhu,
and
Peiyi Zhong
Sky polarization patterns are a relatively new and interesting field of polarized remote sensing.
However, most current research mainly focuses on Rayleigh scattering or different conditions of
aerosol optical depth. In this article, the sky downward polarization patterns are calculated for
both degree of linear polarization and angle of polarization with scattering and absorbing aerosol
situations.
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COLUMNS
This month we look at the Oriental Republic of Uruguay
The Column of the Student Advisory Council
ANNOUNCEMENTS
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DEPARTMENTS
Ralph Winston
Kiefer
1934–2019
Book Review—
Lining Up Data in
ArcGIS: A Guide to
Map Projections
