Towards Improved Air Quality Monitoring Using Publicly Available Sky Images
| Autor: | Yiannis Kompatsiaris, Konstantinos Kourtidis, Stefanos Vrochidis, Symeon Papadopoulos, Anastasia Moumtzidou, Eleftherios Spyromitros-Xioufis, Georgia Alexandri, Aristeidis K. Georgoulias |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
010504 meteorology & atmospheric sciences
Computer science media_common.quotation_subject ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Air pollution ComputerApplications_COMPUTERSINOTHERSYSTEMS 02 engineering and technology medicine.disease_cause 01 natural sciences social media sensing Air quality monitoring Empirical research Social image 0202 electrical engineering electronic engineering information engineering medicine Air quality index sky image detection 0105 earth and related environmental sciences media_common Remote sensing sky localization Data collection air quality Pixel color Sky 020201 artificial intelligence & image processing |
| Zdroj: | Multimedia Tools and Applications for Environmental & Biodiversity Informatics ISBN: 9783319764443 Multimedia Tools and Applications for Environmental & Biodiversity Informatics |
| Popis: | Air pollution causes nearly half a million premature deaths each year in Europe. Despite air quality directives that demand compliance with air pollution value limits, many urban populations continue being exposed to air pollution levels that exceed by far the guidelines. Unfortunately, official air quality sensors are sparse, limiting the accuracy of the provided air quality information. In this chapter, we explore the possibility of extending the number of air quality measurements that are fed into existing air quality monitoring systems by exploiting techniques that estimate air quality based on sky-depicting images. We first describe a comprehensive data collection mechanism and the results of an empirical study on the availability of sky images in social image sharing platforms and on webcam sites. In addition, we present a methodology for automatically detecting and extracting the sky part of the images leveraging deep learning models for concept detection and localization. Finally, we present an air quality estimation model that operates on statistics computed from the pixel color values of the detected sky regions. |
| Databáze: | OpenAIRE |
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