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PM2.5 Monitoring using Images from Smartphones in Participatory Sensing
Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China.
Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China.
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Systems.
Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China.
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2015 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Air pollution has become one of the most pressing environmental issues in many countries, including China. Fine-grained PM2.5 particulate data can prevent people from long time exposure and advance scientific research. However, existing monitoring systems with PM2.5 stationary sensors are expensive, which can only provide pollution data at sparse locations. In this paper we demonstrate for the first time that camera on smartphones can be used for low-cost and fine-grained PM2.5 monitoring in participatory sensing. We propose a LearningBased method to extract air quality related features from images taken by smartphones. These image features will be used to build the haze model that can estimate PM2.5 concentration depending on the reference sensors. We conducted extensive experiments over six months with two datasets to demonstrate the performance of the proposed solution using different models of smartphones. We believe that our findings will give profound impact in many research fields, including mobile sensing, activity scheduling, haze data collection and analysis.

Place, publisher, year, edition, pages
2015. 630-635 p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:uu:diva-272222ISI: 000380561200149ISBN: 9781467371315 (print)OAI: oai:DiVA.org:uu-272222DiVA: diva2:893526
Conference
IEEE SmartCity Workshop in Conjuction with IEEE Infocom
Available from: 2016-01-12 Created: 2016-01-12 Last updated: 2016-09-15Bibliographically approved

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Ngai, Edith

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