Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR024480 |
Advancing Opportunistic Sensing in Hydrology: A Novel Approach to Measuring Rainfall With Ordinary Surveillance Cameras | |
Jiang, Shijie1,2; Babovic, Viadan1; Zheng, Yi2,3; Xiong, Jianzhi2,4 | |
2019-04-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:4页码:3004-3027 |
文章类型 | Article |
语种 | 英语 |
国家 | Singapore; Peoples R China |
英文摘要 | "Opportunistic sensing" represents an appealing idea for collecting unconventional data with broad spatial coverage and high resolution, but few studies have explored its feasibility in hydrology. This study develops a novel approach to measuring rainfall intensity in real-world conditions based on videos acquired by ordinary surveillance cameras. The proposed approach employs a convex optimization algorithm to effectively decompose a rainy image into two layers: a pure rain-streak layer and a rain-free background layer, where the rain streaks represent the motion blur of falling raindrops. Then, it estimates the instantaneous rainfall intensity via geometrical optics and photographic analyses. We investigated the effectiveness and robustness of our approach through synthetic numerical experiments and field tests. The major findings are as follows. First, the decomposition-based identification algorithm can effectively recognize rain streaks from complex backgrounds with many disturbances. Compared to existing algorithms that consider only the temporal changes in grayscale between frames, the new algorithm successfully prevents false identifications by considering the intrinsic visual properties of rain streaks. Second, the proposed approach demonstrates satisfactory estimation accuracy and is robust across a wide range of rainfall intensities. The proposed approach has a mean absolute percentage error of 21.8%, which is significantly lower than those of existing approaches reported in the literature even though our approach was applied to a more complicated scene acquired using a lower-quality device. Overall, the proposed low-cost, high-accuracy approach to vision-based rain gauging significantly enhances the possibility of using existing surveillance camera networks to perform opportunistic hydrology sensing. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000468597900024 |
WOS关键词 | MOVING CARS ; PRECIPITATION ; CLOUD ; REMOVAL ; STREAKS ; GAUGES ; FUTURE ; MODEL |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/182229 |
专题 | 资源环境科学 |
作者单位 | 1.Natl Univ Singapore, Dept Civil & Environm Engn, Singapore, Singapore; 2.Southern Univ Sci & Technol, State Environm Protect Key Lab Integrated Surface, Sch Environm Sci & Engn, Shenzhen, Peoples R China; 3.Southern Univ Sci & Technol, Shenzhen Municipal Engn Lab Environm IoT Technol, Shenzhen, Peoples R China; 4.Peking Univ, Coll Urban & Environm Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Jiang, Shijie,Babovic, Viadan,Zheng, Yi,et al. Advancing Opportunistic Sensing in Hydrology: A Novel Approach to Measuring Rainfall With Ordinary Surveillance Cameras[J]. WATER RESOURCES RESEARCH,2019,55(4):3004-3027. |
APA | Jiang, Shijie,Babovic, Viadan,Zheng, Yi,&Xiong, Jianzhi.(2019).Advancing Opportunistic Sensing in Hydrology: A Novel Approach to Measuring Rainfall With Ordinary Surveillance Cameras.WATER RESOURCES RESEARCH,55(4),3004-3027. |
MLA | Jiang, Shijie,et al."Advancing Opportunistic Sensing in Hydrology: A Novel Approach to Measuring Rainfall With Ordinary Surveillance Cameras".WATER RESOURCES RESEARCH 55.4(2019):3004-3027. |
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