aplikasi baru ponsel untuk pemetaan grassroots
Date:
May 4, 2016
Source:
University of Exeter
Summary:
Akademisi telah menciptakan sebuah aplikasi yang bisa membantu pekerjaan penyelamatan kemanusiaan di daerah bencana melanda dengan menggunakan data geografis untuk memetakan lanskap .
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Akademisi Universitas Exeter telah menciptakan sebuah aplikasi yang
bisa membantu pekerjaan penyelamatan kemanusiaan di daerah bencana melanda
dengan menggunakan data geografis untuk memetakan lanskap.
Aplikasi ponsel android berarti untuk pertama
kalinya sebuah ponsel pintar standar dapat diubah menjadi perangkat
penginderaan jauh yang mandiri.
Aplikasi , yang diciptakan oleh sekelompok ilmuwan dan kolaborator Universitas
Exeter dari
organisasi penelitian Cornwall berbasis
non -profit FoAM Kernow ,
menggunakan on-board sensor yang sudah dalam smartphone modern termasuk accelerometer , GPS ,
kompas dan kamera , untuk menghasilkan penggunaan siap pakai data spasial bila
perangkat ditangguhkan dari platform aerial ringan seperti drone atau
layang-layang . Aplikasi ini mengumpulkan data dan memungkinkan smartphone
untuk beroperasi secara mandiri , sehingga setelah di udara dapat menangkap gambar sesuai dengan
spesifikasi pengguna .
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New mobile phone
app for grassroots mapping
Date:
May 4, 2016
Source:
University of Exeter
Summary:
Academics have created an app that could help aid humanitarian rescue work
in disaster-struck regions by using geographic data to map landscapes.
.................
University of Exeter academics have created an app which could help aid
humanitarian rescue work in disaster-struck regions by using geographic data to
map landscapes.
The android mobile phone application means for the first time a standard
smart phone can be converted into a self-contained remote sensing device.
The app, created by a group of University of Exeter scientists and
collaborators from the Cornwall-based non-profit research organisation FoAM
Kernow, uses on-board sensors already within modern smartphones including the
accelerometer, GPS, compass and camera, to generate ready-to-use spatial data
when the device is suspended from lightweight aerial platforms such as drones
or kites. The app gathers the data and allows the smartphone to operate
autonomously, so that once airborne it can capture images according to the
user's specification.
The study was led by Dr Karen Anderson, a remote sensing scientist who
leads the University of Exeter's Environment and Sustainability Institute's
DroneLab.
Dr Anderson said: "There are now more mobile devices than humans on
Earth. This global distribution of devices offers a great opportunity for
democratic mapping but until now, there have been no apps that exploit the
comprehensive sensor sets in modern devices in this way.
"Currently the sensors on mobile phones harvest data about their users
and send this information to third-parties. We wanted to start using this data
for beneficial purposes such as community-led mapping. Alongside recent
developments with lightweight drones and a growing public appetite for
open-source, free to use mapping data, we are excited to see the variety of
mapping applications for which our new app will be used."
The app is different from many other apps because it can be 'live-coded'
which means that it is not fixed in its functionality. This allows the user to
programme it to behave as desired and images can be captured according to
strict criteria for example, when the phone arrives at a particular location,
or when the camera is level and pointing in a particular direction.
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Aplikasi ini berbeda dari banyak aplikasi lain karena bisa 'live-coded' yang berarti bahwa tidak tetap dalam fungsinya . Hal ini memungkinkan pengguna untuk memprogram untuk berperilaku seperti yang diinginkan dan gambar dapat diambil sesuai dengan kriteria yang ketat misalnya , bila ponsel tiba di lokasi tertentu , atau ketika kamera pada tingkat dan menunjuk ke arah tertentu .
Dave Griffiths, Director at FoAM Kernow, who programmed the app, said:
"As free/open source software, the app is accessible to anyone in the
world with an android device, and means people can combine new sensor
technology for their own uses with drones or kites in an open ended manner.
"We found that the best results were obtained when the phone was
attached to a stable single line kite or to a gliding drone so as to limit the
vibrations, but there will undoubtedly be a wide range of ways of capturing
high quality data using this app and we are really keen to learn about the ways
it is being used."
The team have published an article in the journal PLOS ONE, A
grassroots remote sensing toolkit using live coding, smartphones, kites and
lightweight drones, which documents the various ways in which the app was
tested and shows results from a variety of settings. The group have also
generated a simple coding framework that allows the stream of data from the
phone sensors to be used to convert photographs into Geo-TIFFs -- these are
then suitable for use directly in Geographical Information Systems (GIS) for
mapping and spatial analysis.
The app can be freely downloaded freely from the Google store. All of the
code that supports generation of Geo-TIFFs is freely available from GitHub.
Story Source:
The above post is reprinted from materials provided byUniversity
of Exeter. Note: Materials may be edited for content and length.
Journal Reference:
1.
K. Anderson, D. Griffiths, L. DeBell, S. Hancock, J. P. Duffy, J. D.
Shutler, W. J. Reinhardt, A. Griffiths. A Grassroots Remote Sensing
Toolkit Using Live Coding, Smartphones, Kites and Lightweight Drones. PLOS
ONE, 2016; 11 (5): e0151564 DOI:10.1371/journal.pone.0151564
Sumber :