Results 171 to 180 of about 4,939,742 (208)

Feasibility of forest-fire smoke detection using lidar

International Journal of Wildland Fire, 2003
The feasibility and fundamentals of forest fire detection by smoke sensing with single-wavelength lidar are discussed with reference to results of 532-nm lidar measurements of smoke plumes from experimental forest fires in Portugal within the scope of the Gestosa 2001 project. The investigations included tracing smoke-plume evolution, estimating forest-
Andrei B. Utkin, Armando Fernandes, Fernando Simões, Alexander Lavrov, Rui Vilar   +4 more
openaire   +1 more source

LIDAR detection of forest fire smoke above Sofia

SPIE Proceedings, 2015
The distribution of aerosol load in the atmosphere due to two forest fires near Sofia (the capital city of Bulgaria) was studied using two aerosol lidars which operated at 510.6 nm and 1064 nm. Experimental data is presented as 2D-heatmaps of the evolution of attenuated backscatter coefficient profiles and mean profile of the aerosol backscatter ...
Grigorov, Ivan, Deleva, Atanaska, Stoyanov, Dimitar, Kolev, Nikolay, Kolarov, Georgi   +4 more
openaire   +1 more source

Detection of forest-fire smoke plumes by satellite imagery

Atmospheric Environment (1967), 1984
Abstract In support of the Canadian research programmes for Long-Range Transport of Air Pollutants (LRTAP), the present study was undertaken to examine the feasibility of using satellite imagery to detect large-scale pollution episodes. Atmospheric Environment Service (AES) satellite imagery records were scrutinized in conjunction with meteorological
Y.-S. Chung, H.V. Le
openaire   +1 more source

Method for fire and smoke detection in monitored forest areas

2015 Computer Science and Information Technologies (CSIT), 2015
Forest fire early detection is an important problem from many points of view. It harms ecology and decreases the overall life quality also it is important from economical point of view as wood is a valuable recourse. In this paper, we examine the problem of early fire/smoke detection using shots of different parts of the controlled forest terrain.
David Asatryan, Samvel Hovsepyan
openaire   +1 more source

SMWE-GFPNNet: A High-Precision and Robust Method for Forest Fire Smoke Detection

Knowledge-Based Systems
Li Lin, Renxiang Guan, Rui Li
exaly   +2 more sources

Intelligent video analysis-based forest fires smoke detection algorithms

2016 12th International Conference on Natural Computation, Fuzzy Systems and Knowledge Discovery (ICNC-FSKD), 2016
In order to discover forest fire as early as possible, forest fire detection should focus on the smoke in early fire. This paper focuses on three key issues: motion segmentation, feature extraction and classifier design. Background subtraction based on visual background extractor (Vibe) is chosen to divide suspected smoke area when taking into account ...
Min Cai, Xiaobo Lu, Xuehui Wu, Yifei Feng   +3 more
openaire   +1 more source

Forest Fire Smoke Detection Based on Visual Smoke Root and Diffusion Model

Fire Technology, 2019
The damage caused by forest fire to forestry resources and economy is quite serious. As one of the most important characters of early forest fire, smoke is widely used as a signal of forest fire. In this paper, we propose a novel forest fire smoke detection method based on computer vision and diffusion model. Unlike the video-based methods that usually
Yu Gao, Pengle Cheng
openaire   +1 more source

Patchwise dictionary learning for video forest fire smoke detection in wavelet domain

Neural Computing and Applications, 2021
Fire smoke detection in forest faces much more challenges than in local areas or indoors. Conventional fire smoke methods using static features extracted form single image directly cannot handle some disturbed factors exist in forest, such as shaking trees and fog/haze.
Xuehui Wu, Yichao Cao, Xiaobo Lu, Henry Leung 0001   +3 more
openaire   +2 more sources

Characterization and identification of smoke plume for early forest fire detection

SPIE Proceedings, 2012
Characterization and discrimination of fire smoke for a land-based early forest fire detection system are discussed. Preliminary results of several fire plume identification schemes applied to multispectral video data obtained from a number of controlled fire experiments are presented.
John Saghri, John Jacobs, Daniel Kohler, Tim Davenport, Georges Moussa   +4 more
openaire   +1 more source

Forest fire and smoke detection based on video image segmentation

SPIE Proceedings, 2007
There are reported methods for fire or smoke recognition respectively. But in forest, fire and smoke always exist together, and fire area lies within smoke area. Both fire and smoke are important features for fire detection. Based on this fact we present a novel method to detect fire and smoke in two steps and obtain areas of fire and smoke together.
Dengyi Zhang, Aike Hu, Yujie Rao, Jinming Zhao, Jianhui Zhao   +4 more
openaire   +1 more source