PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING
October 2020
591
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
October 2020 Volume 86 Number 10
Stephen P. Prisley, Jeffery A. Turner, Mark J. Brown, Erik Schilling,
and
Samuel G. Lambert
Forested wetlands (FWs) are economically and environmentally important, so monitoring of change
is done using remote sensing by several U.S. federal programs. To better understand classification
and delineation uncertainties in FW maps, we assessed agreement between National Wetlands
Inventory maps based on aerial photography and field determinations at over 16 000 Forest
Inventory and Analysis plots.
Alex Fafard, Ali Rouzbeh Kargar,
and
Jan van Aardt
Terrestrial laser scanning systems are characterized by a sampling pattern which varies in point
density across the hemisphere. Additionally, close objects are over-sampled relative to objects that
are farther away. These two effects compound to potentially bias the three-dimensional statistics
of measured scenes. Previous methods of sampling have resulted in a loss of structural coherence.
In this article, a method of sampling is proposed to optimally sample points while preserving the
structure of a scene.
Jun Wang, Jing M. Chen, Lian Feng, Jianhui Xu,
and
Feifei Zhang
The directional-hemispherical reflectance and transmittance of needle-shaped leaves are
redefined in this study. We suggest that the reflected and transmitted radiation of a leaf should be
distinguished by the illuminated and shaded leaf surfaces rather than the usual separation of the
two hemispheres by a plane perpendicular to the incoming radiation.
Xiangxi Tian, Yong Xu, Fulu Wei, Oguz Gungor, Zhixin Li, Ce Wang, Shuo Li,
and
Jie Shan
Pavement macrotexture contributes greatly to road surface friction, which in turn plays a vital
role in reducing road accidents. Conventional methods for macrotexture measurement are either
expensive, time-consuming, or of poor repeatability. Based on multi-view smartphone images
collected
in situ
, this paper develops and evaluates an affordable and convenient alternative
approach for pavement macrotexture measurement. We demonstrate multi-view smartphone
images can yield results comparable to the ones from the conventional laser texture scanner. It is
expected that the developed approach can be adopted for large scale operational uses.
linkedin.com/groups/2745128/profile
By Matthew Bauld and Al Karlin, Ph.D.
CMS-L, GISP
FEATURE
COLUMNS
This month we look at the Republic of Latvia
The Column of the Student Advisory Council
ANNOUNCEMENTS
Join us in welcoming our newest members to ASPRS.
DEPARTMENTS
2021 ASPRS Scholarship
Application Season Now Open—
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for details
