Academic Journal
Surveillance-image-based outdoor air quality monitoring
| Title: | Surveillance-image-based outdoor air quality monitoring |
|---|---|
| Authors: | Xiaochu Wang, Meizhen Wang, Xuejun Liu, Ying Mao, Yang Chen, Songsong Dai |
| Source: | Environmental Science and Ecotechnology, Vol 18, Iss , Pp 100319- (2024) |
| Publisher Information: | Elsevier, 2024. |
| Publication Year: | 2024 |
| Collection: | LCC:Environmental sciences LCC:Environmental technology. Sanitary engineering |
| Subject Terms: | Outdoor air quality estimation, Hybrid deep learning model, Convolutional neural network, Long short-term memory, Image sequences, Environmental sciences, GE1-350, Environmental technology. Sanitary engineering, TD1-1066 |
| More Details: | Air pollution threatens human health, necessitating effective and convenient air quality monitoring. Recently, there has been a growing interest in using camera images for air quality estimation. However, a major challenge has been nighttime detection due to the limited visibility of nighttime images. Here we present a hybrid deep learning model, capitalizing on the temporal continuity of air quality changes for estimating outdoor air quality from surveillance images. Our model, which integrates a convolutional neural network (CNN) and long short-term memory (LSTM), adeptly captures spatial-temporal image features, enabling air quality estimation at any time of day, including PM2.5 and PM10 concentrations, as well as the air quality index (AQI). Compared to independent CNN networks that solely extract spatial features, our model demonstrates superior accuracy on self-constructed datasets with R2 = 0.94 and RMSE = 5.11 μg m−3 for PM2.5, R2 = 0.92 and RMSE = 7.30 μg m−3 for PM10, and R2 = 0.94 and RMSE = 5.38 for AQI. Furthermore, our model excels in daytime air quality estimation and enhances nighttime predictions, elevating overall accuracy. Validation across diverse image datasets and comparative analyses underscore the applicability and superiority of our model, reaffirming its applicability and superiority for air quality monitoring. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2666-4984 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S2666498423000844; https://doaj.org/toc/2666-4984 |
| DOI: | 10.1016/j.ese.2023.100319 |
| Access URL: | https://doaj.org/article/12631b0313ca4f9a8b7ff6d0e4840cb8 |
| Accession Number: | edsdoj.12631b0313ca4f9a8b7ff6d0e4840cb8 |
| Database: | Directory of Open Access Journals |
| ISSN: | 26664984 |
|---|---|
| DOI: | 10.1016/j.ese.2023.100319 |
| Published in: | Environmental Science and Ecotechnology |
| Language: | English |