Long-Distance Telecommunication in Remote Poor Areas: From Partnerships and Implementation to Sustainability

Murillo, Martin J.; Paco, Juan A.; Wright, David J.

doi:10.1109/mts.2015.2396048

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…For example, when images are acquired in a greenhouse facility or even in the field, and are then transmitted to a central location for archival and analysis (e.g., as in the framework proposed by (Minervini and Tsaftaris, 2013), or in the gigapixel time-lapse panoramic imaging system in (Brown et al, 2012)). Another example could be the recent developments towards affordable phenotyping 2 where users in developing countries or in rural remote areas acquire images using affordable and low computational power devices (e.g., mobile phones), and transmit them over wireless communication links (enabled in remote places by long-distance connectivity projects (Murillo et al, 2015) or emerging technologies such as the Brck 3 ) and the Internet to cloud services (e.g., the iPlant Collaborative (Goff et al, 2011)), where sophisticated analyses can take place, and results are sent back in response (Minervini and Tsaftaris, 2013;Puhl, 2013). Both of these scenarios involve: a remote sensing device, which does not have the computational power to perform analysis; the use of a limited communication channel, which may not have the capacity to carry many large images; and potentially imaging of plants in non-ideal settings, for example in the field (Andrade-Sanchez et al, 2013;Bucksch et al, 2014) or non-uniformly illuminated conditions, which increase the complexity of the image content.…”

Section: Discussionmentioning

confidence: 99%

The significance of image compression in plant phenotyping applications

Minervini

Scharr

Tsaftaris

2015

Functional Plant Biol.

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We currently witness an increasingly higher throughput in image-based plant phenotyping experiments. The majority of imaging data are collected based on complex automated procedures, and are then post-processed to extract phenotyping related information. In this article we show that image compression used in such procedures may compromise phenotyping results and needs to be taken into account. We motivate the paper with three illuminating proof of concept experiments which demonstrate that compression (especially in its most common lossy form of JPEG) does affect measurements of plant traits and errors introduced can be high. We further systematically explore how compression affects measurement fidelity, quantified as effects on image quality as well as errors in extracted plant visual traits. To do so we evaluate a variety of image-based phenotyping scenarios, including size and color of shoots, leaf and root growth. To show that even visual impression can be used to assess compression effects we use root system images as examples. Overall, we find that compression has a considerable effect on several types of analyses (albeit visual or quantitative) and that proper care is necessary to ensure that such choice does not affect biological findings. In order to avoid or at least minimize introduced measurement errors, for each scenario we derive recommendations and provide guidelines on how to identify suitable compression options in practice. We also find that certain compression choices can offer beneficial returns, in terms of reducing the amount of data storage without compromising phenotyping results. This may enable even higher throughput experiments in the future.

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Section: Discussionmentioning

confidence: 99%

The significance of image compression in plant phenotyping applications

Minervini

Scharr

Tsaftaris

2015

Functional Plant Biol.

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“…Ez a terület egyre jobban foglalkoztatja a kutatókat, egyre több publikáció vizsgálja a telekommunikáció szerepét a 4. ipari forradalomban, így pl. : Erokhina-Mukhametov-Sheremetiev (2019), Park-Kim (2018), Hauer (2017), Murillo-Paco-Wright (2015). Ezekben a kutatásokban is megjelenik, valamint a fenti elemzésekben is látható, hogy a 4. ipari forradalomban kiemelkedő szerep jut a hálózatoknak, az adatáramlásnak, a kommunikációnak és ezzel együtt megnő a telekommunikációs vállalatok szerepe, jelentősége.…”

Section: A Telekommunikációs Vállalatok Szerepe a 4 Ipari Forradalombanunclassified

Hogyan befolyásolta a 4. ipari forradalom a magyar telekommunikációs szektor cégeinek pénzügyi helyzetét 2013 –2017 között?

Hamar

2019

MKSV

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“…The network equipment is mostly solar-powered because of the lack of reliable power supply in these rural mountainous areas. Other Wi-Fi networks have also been deployed in rainforest (dense vegetation) settings in the Peruvian Amazon region along the Napo River (Rey-Moreno et al, 2011) and in the Balsapuerto District (Murillo et al, 2015). Although these two networks mostly provide broadband internet services to health posts and hospitals for telemedicine purposes, government network managers recognize that under the proper business model and regulatory framework, these networks could also provide broadband internet services to other customers.…”

Section: Wi-fimentioning

confidence: 99%

Wireless technologies and policies for connecting rural areas in emerging countries: a case study in rural Peru

Espinoza

Reed

2018

DPRG

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Purpose This paper aims to compare the costs of deploying different wireless terrestrial broadband technologies in the Andes and Amazon Regions of Peru. These areas are representatives of different and challenging geographic regions throughout the globe that currently are severely underserved or unserved for vital broadband services necessary to bridge the “Digital Divide”. Design/methodology/approach The broadband technologies studied include Wi-Fi, Worldwide Interoperability for Microwave Access (WiMAX), long term evolution (LTE), TVWS and new stratospheric platforms (super-pressure balloons). This study conducts a technical analysis (design and simulation) of wireless broadband networks, and a bottom-up engineering cost analysis to estimate and compare the deployment and operating costs of the networks over a 10-year period. The analysis also identifies potential regulatory barriers to deployment associated with spectrum allocation licenses and overbooking requirements intended to improve quality of service. Findings Comparison of the capital and operating expenses of these options over a 10-year period finds that LTE and Wi-Fi can be the lowest cost alternatives, though significantly, stratospheric balloons have the lowest initial costs for the first few years and can factor as a low-cost broadband catalyst early in deployment. Finally, the lowest cost technology broadband roadmap for the 10-year period is presented, which includes using stratospheric balloons (carrying micro-LTE base stations) for the first years and deploying complementary terrestrial LTE networks for the rest of the 10-year period. Originality/value This study presents detailed technical and engineering cost analysis results of wireless access network deployments, including advanced wireless technologies and new unmanned aerial systems, to expand broadband services to rural areas in mountainous (Andes Region) and rainforest (Amazon Region) geographies to reduce the digital divide in emerging countries. Results aim to aid governments, regulators, internet service providers (incumbents and competitive) and content providers to assess current alternatives to expand broadband service in these rural areas.

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Long-Distance Telecommunication in Remote Poor Areas: From Partnerships and Implementation to Sustainability

Cited by 7 publications

References 9 publications

The significance of image compression in plant phenotyping applications

The significance of image compression in plant phenotyping applications

Hogyan befolyásolta a 4. ipari forradalom a magyar telekommunikációs szektor cégeinek pénzügyi helyzetét 2013 –2017 között?

Wireless technologies and policies for connecting rural areas in emerging countries: a case study in rural Peru

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